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Search - "network issues"
I have this old lady that I help from time to time with her computer issues.
She is nice, so I feel compelled to help her.
Get a call one day.
Lady : "hello, my internet and email isn't working, I've tried everything, could you maybe help me?"
Me : "Sure, ill come over after work and check it out"
*arrive at her house*
Lady : "you see, none of the web pages load, and my email refuses to sync. Should I call (insert isp name), or can you fix it?"
Me : I'm sure I can get it, gimme a sec.
*find the issue in a sec or two, dunno how to tell her about it, she isn't totally stupid*
Me : "Uhh, I don't know if you checked, but the ether.. internet cable isn't plugged in"
Lady : *realizes the wtf moment I'm having, obviously feeling very stupid*
Me : "Don't worry, happens to the best of us"
Obviously I lied a little, most of us would probably check the damn cable. Sometimes is just better to make people not feel like its their fault. People learn better when they don't feel like something is making a fool of them.
I have helped this lady with so many things that are just straight out of this world.
The one time she tried emailing 37mb tiff files over her 315kbps network.
Another time she said her email was not syncing, so I went to her house and clicked the "sync" button.
She even once phoned me to get their wifi password.
I just like helping her, somehow it makes me feel as if we all have something to learn.6
I spent a month tracking down "slow internet".
Everybody thought the users in that office were just stupid (mostly because they were) and such were ignored when lamenting "the internet is slower now that we have fiber!"
But dammit it *was* slow. Every time I had to download something in that office, it felt like it took twice the time it should.
Ping the router; it's fine. Ping 22.214.171.124: ~50ms no loss. Speedtest.net showed 100 up 100 down. Transfer files between PCs, no local network issues. Go back to my office and transfer files (over the WAN), it's slow!
So I pop open Wireshark. Mad packet loss. All my wat. Ping their router over WAN... no packet loss.
I went back and forth with these various tests for a couple weeks until I narrowed it down to one weird possibility:
The ONT is dropping *only* sequential TCP packets.
I spent the next two weeks convincing our ISP this was the case. Eventually they ripped out the equipment and replaced it. Apparently that whole business park had been suffering for a year.
So yeah. It was slower on fiber. WTF.4
--- GitHub 24-hour outage post mortem ---
As many of you will remember; Github fell over earlier this month and cracked its head on the counter top on the way down. For more or less a full 24 hours the repo-wrangling behemoth had inconsistent data being presented to users, slow response times and failing requests during common user actions such as reporting issues and questioning your career choice in code reviews.
It's been revealed in a post-mortem of the incident (link at the end of the article) that DB replication was the root cause of the chaos after a failing 100G network link was being replaced during routine maintenance. I don't pretend to be a rockstar-ninja-wizard DBA but after speaking with colleagues who went a shade whiter when the term "replication" was used - It's hard to predict where a design decision will bite back and leave you untanging the web of lies and misinformation reported by the databases for weeks if not months after everything's gone a tad sideways.
When the link was yanked out of the east coast DC undergoing maintenance - Github's "Orchestrator" software did exactly what it was meant to do; It hit the "ohshi" button and failed over to another DC that wasn't reporting any issues. The hitch in the master plan was that when connectivity came back up at the east coast DC, Orchestrator was unable to (un)fail-over back to the east coast DC due to each cluster containing data the other didn't have.
At this point it's reasonable to assume that pants were turning funny colours - Monitoring systems across the board started squealing, firing off messages to engineers demanding they rouse from the land of nod and snap back to reality, that was a bit more "on-fire" than usual. A quick call to Orchestrator's API returned a result set that only contained database servers from the west coast - none of the east coast servers had responded.
Come 11pm UTC (about 10 minutes after the initial pant re-colouring) engineers realised they were well and truly backed into a corner, the site was flipped into "Yellow" status and internal mechanisms for deployments were locked out. 5 minutes later an Incident Co-ordinator was dragged from their lair by the status change and almost immediately flipped the site into "Red" status, a move i can only hope was accompanied by all the lights going red and klaxons sounding.
Even more engineers were roused from their slumber to help with the recovery effort, By this point hair was turning grey in real time - The fail-over DB cluster had been processing user data for nearly 40 minutes, every second that passed made the inevitable untangling process exponentially more difficult. Not long after this Github made the call to pause webhooks and Github Pages builds in an attempt to prevent further data loss, causing disruption to those of us using Github as a way of kicking off our deployment processes (myself included, I had to SSH in and run a git pull myself like some kind of savage).
Glossing over several more "And then things were still broken" sections of the post mortem; Clever engineers with their heads screwed on the right way successfully executed what i can only imagine was a large, complex and risky plan to untangle the mess and restore functionality. Github was picked up off the kitchen floor and promptly placed in a comfy chair with a sweet tea to recover. The enormous backlog of webhooks and Pages builds was caught up with and everything was more or less back to normal.
It goes to show that even the best laid plan rarely survives first contact with the enemy, In this case a failing 100G network link somewhere inside an east coast data center.
Link to the post mortem: https://blog.github.com/2018-10-30-...10
Soms week ago a client came to me with the request to restructure the nameservers for his hosting company. Due to the requirements, I soon realised none of the existing DNS servers would be a perfect fit. Me, being a PHP programmer with some decent general linux/server skills decided to do what I do best: write a small nameservers which could execute the zone transfers... in PHP. I proposed the plan to the client and explained to him how this was going to solve all of his problems. He agreed and started worked.
After a few week of reading a dozen RFC documents on the DNS protocol I wrote a DNS library capable of reading/writing the master file format and reading/writing the binary wire format (we needed this anyway, we had some more projects where PHP did not provide is with enough control over the DNS queries). In short, I wrote a decent DNS resolver.
Another two weeks I was working on the actual DNS server which would handle the NOTIFY queries and execute the zone transfers (AXFR queries). I used the pthreads extension to make the server behave like an actual server which can handle multiple request at once. It took some time (in my opinion the pthreads extension is not extremely well documented and a lot of its behavior has to be detected through trail and error, or, reading the C source code. However, it still is a pretty decent extension.)
Yesterday, while debugging some last issues, the DNS server written in PHP received its first NOTIFY about a changed DNS zone. It executed the zone transfer and updated the real database of the actual primary DNS server. I was extremely euphoric and I began to realise what I wrote in the weeks before. I shared the good news the client and with some other people (a network engineer, a server administrator, a junior programmer, etc.). None of which really seemed to understand what I did. The most positive response was: "So, you can execute a zone transfer?", in a kind of condescending way.
This was one of those moments I realised again, most of the people, even those who are fairly technical, will never understand what we programmers do. My euphoric moment soon became a moment of loneliness...20
The stupid stories of how I was able to break my schools network just to get better internet, as well as more ridiculous fun. XD
It was my freshman year in college. The internet sucked really, really, really badly! Too many people were clearly using it. I had to find another way to remedy this. Upon some further research through Google I found out that one can in fact turn their computer into a router. Now what’s interesting about this network is that it only works with computers by downloading the necessary software that this network provides for you. Some weird software that actually looks through your computer and makes sure it’s ok to be added to the network. Unfortunately, routers can’t download and install that software, thus no internet… but a PC that can be changed into a router itself is a different story. I found that I can download the software check the PC and then turn on my Router feature. Viola, personal fast internet connected directly into the wall. No more sharing a single shitty router!
This was about the year when bitcoin mining was becoming a thing, and everyone was in on it. My shitty computer couldn’t possibly pull off mining for bitcoins. I needed something faster. How I found out that I could use my schools servers was merely an accident.
I had been installing the software on every possible PC I owned, but alas all my PC’s were just not fast enough. I decided to try it on the RDS server. It worked; the command window was pumping out coins! What I came to find out was that the RDS server had 36 cores. This thing was a beast! And it made sense that it could actually pull off mining for bitcoins. A couple nights later I signed in remotely to the RDS server. I created a macro that would continuously move my mouse around in the Remote desktop screen to keep my session alive at all times, and then I’d start my bitcoin mining operation. The following morning I wake up and my session was gone. How sad I thought. I quickly try to remote back in to see what I had collected. “Error, could not connect”. Weird… this usually never happens, maybe I did the remoting wrong. I went to my schools website to do some research on my remoting problem. It was down. In fact, everything was down… I come to find out that I had accidentally shut down the schools network because of my mining operation. I wasn’t found out, but I haven’t done any mining since then.
As an engineering student I found out that all engineering students get access to the school’s VPN. Cool, it is technically used to get around some wonky issues with remoting into the RDS servers. What I come to find out, after messing around with it frequently, is that I can actually use the VPN against the screwed up security on the network. Remember, how I told you that a program has to be downloaded and then one can be accepted into the network? Well, I was able to bypass all of that, simply by using the school’s VPN against itself… How dense does one have to be to not have patched that one?
It was another programming day, and I needed access to my phones memory. Using some specially made apps I could easily connect to my phone from my computer and continue my work. But what I found out was that I could in fact travel around in the network. I discovered that I can, in fact, access my phone through the network from anywhere. What resulted was the discovery that the network scales the entirety of the school. I discovered that if I left my phone down in the engineering building and then went north to the biology building, I could still continue to access it. This seems like a very fatal flaw. My idea is to hook up a webcam to a robot and remotely controlling it from the RDS servers and having this little robot go to my classes for me.
What crazy shit have you done at your University?9
This is my first post on devRant!
It was on my first job as a developer, learning a lot but getting paid less than 50% of the minimum monthly wage of my country.
It was settled in the interview that as I gained more experience, I could handle more projects and earn more money.
At the time, I was living with my parents and didn't have to pay rent and some stuff, so I was like "Well, I'm gonna learn a lot and, if I put a lot of effort into it, soon I'll be making more money".
We agreed that I'll only develop, but 4 months into the job, I was already going to clients
and started coding there (having the client on my back every minute, not being able to work properly) and fixing some computer/network issues they had,
because my boss said I should do it.
Things at home started to go south, and suddenly I needed more money, so I kept doing the work and getting paid a little bit more
A year goes by, devs came and go beacuse of the work/payment situation, and I was still there.
From my first "paycheck" to the last day I never got paid on time, and that was the same for everybody else
The last month I was there, I had a job offer with a better salary and weekends free, so I wanted to take it (I worked saturdays there).
We were working at our biggest clients place at the time (a hospital, working in the server room, desk and chair were a total crap),
so I wanted to have a good conversation with my boss and tell him whats up, after all, I was really grateful for the job despite all things.
We headed outside and started talking. He basically begged me to stay, said that he will pay me on time and offered me more money (less than the other company was offering me),
and that he needed me to finish the implementation and "minor issues" with the app.
I thought about it for a couple of days, and decided to stay. I politely rejected the job offer, and even recommended someone else.
As the days passed, regret was building fast inside of me, until the day that I was supposed to get paid.
He never showed up to the client, told me in a call that he will be there sometime in the morning, that he had the money for me.
So I stayed until my day ended, and still no sign of him. I had no money on me, needed some for gas so I could go, and I called him 5 times.
He picked up the last time, talks to me like nothing is happening and I started to shout at him like I never shouted to anybody before,
got all the things of my chest, and when I was done, he said that he will send the money to my account right away.
This happened on a Saturday, so I quit the following Monday, and lost the other job offer.7
--- URGENT: Major security flaw in Kubernetes: Update Kubernetes at all costs! ---
Detailed info: https://github.com/kubernetes/...
If you are running any unpatched versions of Kubernetes, you must update now. Anyone might be able to send commands directly to your backend through a forged network request, without even triggering a single line in the log, making their attack practically invisible!
If you are running a version of Kubernetes below 1.10... there is no help for you. Upgrade to a newer version, e.g. 126.96.36.199
3 rants for the price of 1, isn't that a great deal!
1. HP, you braindead fucking morons!!!
So recently I disassembled this HP laptop of mine to unfuck it at the hardware level. Some issues with the hinge that I had to solve. So I had to disassemble not only the bottom of the laptop but also the display panel itself. Turns out that HP - being the certified enganeers they are - made the following fuckups, with probably many more that I didn't even notice yet.
- They used fucking glue to ensure that the bottom of the display frame stays connected to the panel. Cheap solution to what should've been "MAKE A FUCKING DECENT FRAME?!" but a royal pain in the ass to disassemble. Luckily I was careful and didn't damage the panel, but the chance of that happening was most certainly nonzero.
- They connected the ribbon cables for the keyboard in such a way that you have to reach all the way into the spacing between the keyboard and the motherboard to connect the bloody things. And some extra spacing on the ribbon cables to enable servicing with some room for actually connecting the bloody things easily.. as Carlos Mantos would say it - M-m-M, nonoNO!!!
- Oh and let's not forget an old flaw that I noticed ages ago in this turd. The CPU goes straight to 70°C during boot-up but turning on the fan.. again, M-m-M, nonoNO!!! Let's just get the bloody thing to overheat, freeze completely and force the user to power cycle the machine, right? That's gonna be a great way to make them satisfied, RIGHT?! NO MOTHERFUCKERS, AND I WILL DISCONNECT THE DATA LINES OF THIS FUCKING THING TO MAKE IT SPIN ALL THE TIME, AS IT SHOULD!!! Certified fucking braindead abominations of engineers!!!
Oh and not only that, this laptop is outperformed by a Raspberry Pi 3B in performance, thermals, price and product quality.. A FUCKING SINGLE BOARD COMPUTER!!! Isn't that a great joke. Someone here mentioned earlier that HP and Acer seem to have been competing for a long time to make the shittiest products possible, and boy they fucking do. If there's anything that makes both of those shitcompanies remarkable, that'd be it.
2. If I want to conduct a pentest, I don't want to have to relearn the bloody tool!
Recently I did a Burp Suite test to see how the devRant web app logs in, but due to my Burp Suite being the community edition, I couldn't save it. Fucking amazing, thanks PortSwigger! And I couldn't recreate the results anymore due to what I think is a change in the web app. But I'll get back to that later.
So I fired up bettercap (which works at lower network layers and can conduct ARP poisoning and DNS cache poisoning) with the intent to ARP poison my phone and get the results straight from the devRant Android app. I haven't used this tool since around 2017 due to the fact that I kinda lost interest in offensive security. When I fired it up again a few days ago in my PTbox (which is a VM somewhere else on the network) and today again in my newly recovered HP laptop, I noticed that both hosts now have an updated version of bettercap, in which the options completely changed. It's now got different command-line switches and some interactive mode. Needless to say, I have no idea how to use this bloody thing anymore and don't feel like learning it all over again for a single test. Maybe this is why users often dislike changes to the UI, and why some sysadmins refrain from updating their servers? When you have users of any kind, you should at all times honor their installations, give them time to change their individual configurations - tell them that they should! - in other words give them a grace time, and allow for backwards compatibility for as long as feasible.
3. devRant web app!!
As mentioned earlier I tried to scrape the web app's login flow with Burp Suite but every time that I try to log in with its proxy enabled, it doesn't open the login form but instead just makes a GET request to /feed/top/month?login=1 without ever allowing me to actually log in. This happens in both Chromium and Firefox, in Windows and Arch Linux. Clearly this is a change to the web app, and a very undesirable one. Especially considering that the login flow for the API isn't documented anywhere as far as I know.
So, can this update to the web app be rolled back, merged back to an older version of that login flow or can I at least know how I'm supposed to log in to this API in order to be able to start developing my own client?10
10 years ago, I found a vulnerability in the connection between an insurer I was working for, and the network of databases of municipalities. I was only a hacker in so far as kids who watched Hak5 are considered hackers, so I always carried this laptop with a fake access point, package sniffer, wep crack, sslstrip, etc with me.
The vulnerabilities allowed me to register a new identity, for which I requested a passport.
Walking up to the town hall desk with two passports with different names, both mine, was pretty cool.
I did not do anything malicious, and was hired to fix the issues (wep encryption on insurers trusted wifi, and municipality postgres gave write access to all third parties)
For a few days I was the coolest kid in school though!2
A friend called ITIS guys about some network issue on his system.
Frnd : Hi, I'm facing some security policy issues on my system. Could you help me connect?
ITIS guy: Ok. Please run 'gpupdate /force' cmd from cmdpromt.
Frnd: Well actually I'm on Linux.
ITIS guy: Well, at least give it a try and tell me how it goes.
*Facepalm*? *Bodypalm*? Murder?4
Lord forgive me for laughing too hard at this person/situation... I kid you NOT!
So today while everything was going well, we suddenly had network issues at work. We worked to get everything back up online asap and then sent out an email for those affected to either restart their machines or refresh their desktops but we recommend restarting... After some few client calls, this special call came in..
Riiing, riiiiiing, ring....
Me: hi, how can help you?
Client: *laughing.. This is probably a stupid question but I forgot how to "refresh" my desk top..the thing is, I have Febreeze but I don't think that's for desk tops.
Me: Wait, what? 🤔 Febreeze for what?😕
Client: You guys sent an email to refresh our desk tops and I said I have Febreeze so how will that get my things in the computer back to show again?
Me: Ohhh, no no. We meant your computer desktop. You don't need Febreeze. Right click anywhere on your computer in the screen and select refresh from the pop up menu. We meant your computer "desktop" not your actual "desk top".
Client: *starts laughing...I told you it was a stupid question
Me: don't worry.. It wasn't stupid.
After I hang up, some of my team members asked me why someone is asking about Febreeze...I told them and they all started laughing hysterically
I was still trying to digest the conversation I had just have on the phone. 😂😂😂12
--- UK Mobile carrier O2's data network vanishes like a fart in the wind ---
One of the largest mobile carriers in the UK; O2 has been having all manner of weird and wonderful problems this morning as bleary eyed susbcribers awoke to find their data services unavailable. What makes this particular outage interesting (more so than the annoyingly frequent wobblers some mobile masts have) is that the majority of the UK seems to be affected.
To further compound the hilarity/disaster (depending on which side of the fence you're on), Many smaller independent carriers such as GiffGaff and Tesco Mobile piggy-back off O2's network, meaning they're up the stinky creek without a paddle as well. Formal advice from the gaseous carrier is to reboot your device frequently to force a reconnect attempt, Which we're absolutely sure won't cause any issues at all with millions of devices screaming at the same network when it comes back up.
Issue reports began flooding DownDetector at around 5am (GMT), With PR minions formally acknowledging the issue 2 hours later at 7am (GMT) via the most official channel available - Twitter. After a few recent updates via the grapevine (companies involved seems to be keeping their heads down at the minute) Ericsson has been fingered for pushing out a wonky software update but there's been no official confirmation of this, so pitchforks away please folks.
If you're in need of a giggle while you wait for your 4G goodness to return, You can always hop on an open WiFi network and read the tales of distress the data-less masses are screaming into the void.6
I am DONE with this woman CONTINUED!
I didn't think I'd have to put another rant about this stupidity at least not this soon but she just keeps on giving!
I have my noise canceling headphones on most of the time and when I want to hear the people around, I just put the right earcup of it to the side of my ear so the music pauses. Today we had a huge disrupt on our services because of a network switch error on the hub. I was also trying to focus on my coding as I didn't wanna do a stupid mistake on the last working day and be sorry about it in the next week.
So this woman sneaks up on me from behind calling my name - meaning she has a question, surprise! -, I say 'yes' moving my head to her side ever so slightly without getting my eyes off of my screen stating subtly that I'm also listening to her while trying to focus on my shit. She starts yelling at me 'look at me!' out of nowhere! I turn my head and ask what the problem is and she asks why I'm not looking at her face! Stupid moron, I might not be too good in understanding your way of communication but you are the one asking so you WILL wait if you'd like to hear answers.
I say I'm working on something and her answer is again 'Why aren't you looking at my face it's going to be quick bla bla did we do this like that?' and I answered I didn't remember because there's no way I'd ever remember without looking further and it was no lie.
This woman clearly has stability issues and everyone else seem to be tolerating it. It's now obvious as I'm not tolerating the nonsense I'll be the one that 'she only has ever had a problem with'.
I was quick to de escalate the situation but now I'm thinking maybe I should've responded in a way that she could understand. I wouldn't ever give a shit about it but this is getting ridiculous.21
I’ve started the process of setting up the new network at work. We got a 1Gbit fibre connection.
Plan was simple, move all cables from old switch to new switch. I wish it was that easy.
The imbecile of an IT Guy at work has setup everything so complex and unnecessary stupid that I’m baffled.
We got 5 older MacPros, all running MacOS Server, but they only have one service running on them.
Then we got 2x xserve raid where there’s mounted some external NAS enclosures and another mac. Both xserve raid has to be running and connected to the main macpro who’s combining all this to a few different volumes.
Everything got a static public IP (we got a /24 block), even the workstations. Only thing that doesn’t get one ip pr machine is the guest network.
The firewall is basically set to have all ports open, allowing for easy sniffing of what services we’re running.
The “dmz” is just a /29 of our ip range, no firewall rules so the servers in the dmz can access everything in our network.
Back to the xserve, it’s accessible from the outside so employees can work from home, even though no one does it. I asked our IT guy why he hadn’t setup a VPN, his explanation was first that he didn’t manage to set it up, then he said vpn is something hackers use to hide who they are.
I’m baffled by this imbecile of an IT guy, one problem is he only works there 25% of the time because of some health issues. So when one of the NAS enclosures didn’t mount after a power outage, he wasn’t at work, and took the whole day to reply to my messages about logins to the xserve.
I can’t wait till I get my order from fs.com with new patching equipment and tonnes of cables, and once I can merge all storage devices into one large SAN. It’ll be such a good work experience.8
Wk1:, Client wants stack deployed to AWS in a day... Does it in 30 minutes...
Wk2: client complains about cost of service so requests I downsize the stack they asked for... Does so... Just to save some £££ at loss of any DR or HA capability
Wk3: Client wants stack moved to a different AWS account just cos... Advised could cause issues... Client says carry on. Migrates to account as requested on the days they requested.
Wk4: client complains that said migration caused issues and that proper change control wasn't followed..... That was never informed on..
Wk5: issue discovered to actually be network fault linked to clients wanting every £££ saved in AWS... And as the stack specialist I still have to write up a summary and findings?
Wow just get a decent AWS admin will ya....3
I haven't ranted for today, but I figured that I'd post a summary.
A public diary of sorts.. devRant is amazing, it even allows me to post the stuff that I'd otherwise put on a piece of paper and probably discard over time. And with keyboard support at that <3
Today has been a productive day for me. Laptop got restored with a "pacman -Syu" over a Bluetooth mobile data tethering from my phone, said phone got upgraded to an unofficial Android 9 (Pie) thanks to a comment from @undef, etc.
I've also made myself a reliable USB extension cord to be able to extend the 20-30cm USB-A male to USB-C male cord that Huawei delivered with my Nexus 6P. The USB-C to USB-C cord that allows for fast charging is unreliable.. ordered some USB-C plugs for that, in order to make some high power wire with that when they arrive.
So that plug I've made.. USB-A male to USB-A female, in which my short USB-C to USB-A wire can plug in. It's a 1M wire, with 18AWG wire for its power lines and 28AWG wires for its data lines. The 18AWG power lines can carry up to 10A of current, while the 28AWG lines can carry up to 1A. All wires were made into 1M pieces. These resulted in a very low impedance path for all of them, my multimeter measured no more than 200 milliohms across them, though I'll have to verify and finetune that on my oscilloscope with 4-wire measurement.
So the wire was good. Easy too, I just had to look up the pinout and replicate that on the male part.
That's where the rant part comes in.. in fact I've got quite uncomfortable with sentences that don't include at least one swear word at this point. All hail to devRant for allowing me to put them out there without guilt.. it changed my very mind <3
I've tried to plug my DIY extension cord into it, and plugged my phone and some USB stick into it of which I've completely forgot the filesystem. Windows certainly doesn't support it.. turns out that it was LUKS. More about that later.
Windows returned that it didn't support either of them, due to "malfunctioning at the USB device". So I went ahead and plugged in my phone directly.. works without a problem. Then I went ahead and troubleshooted the wire I've just made with a multimeter, to check for shorts.. none at all.
At that point I suspected that WanBLowS was the issue, so I booted up my (at the time) problematic Arch laptop and did the exact same thing there, testing that USB stick and my phone there by plugging it through the extension wire. Shit just worked like that. The USB stick was a LUKS medium and apparently a clone of my SanDisk rootfs that I'm storing my Arch Linux on my laptop at at the time.. an unfinished migration project (SanDisk is unstable, my other DM sticks are quite stable). The USB stick consumed about 20mA so no big deal for any USB controller. The phone consumed about 500mA (which is standard USB 2.0 so no surprise) and worked fine as well.. although the HP laptop dropped the voltage to ~4.8V like that, unlike 5.1V which is nominal for USB. Still worked without a problem.
So clearly Windows is the problem here, and this provides me one more reason to hate that piece of shit OS. Windows lovers may say that it's an issue with my particular hardware, which maybe it is. I've done the Windows plugging solely through a USB 3.0 hub, which was plugged into a USB 3.0 port on the host. Now USB 3.0 is supposed to be able to carry up to 1A rather than 500mA, so I expect all the components in there to be beefier. I've also tested the hub as part of a review, and it can carry about 1A no problem, although it seems like its supply lines aren't shorted to VCC on the host, like a sensible hub would. Instead I suspect that it's going through the hub's controller.
Regardless, this is clearly a bad design. One of the USB data lines is biased to ~3.3V if memory serves me right, while the other is biased to 300mV. The latter could impose a problem.. but again, the current path was of a very low impedance of 200milliohms at most. Meanwhile the direct connection that omits the ~200ohm extension wire worked just fine. Even 300mV wouldn't degrade significantly over such a resistance. So this is most likely a Windows problem.
That aside, the extension cord works fine in Linux. So I've used that as a charging connection while upgrading my Arch laptop (which as you may know has internet issues at the time) over Bluetooth, through a shared BNEP connection (Bluetooth tethering) from my phone. Mobile data since I didn't set up my WiFi in this new Pie ROM yet. Worked fine, fixed my WiFi. Currently it's back in my network as my fully-fledged development host. So that way I'll be able to work again on @Floydian's LinkHub repository. My laptop's the only one who currently holds the private key for signing commits for git$(rm -rf ~/*)@nixmagic.com, hence why my development has been impeded. My tablet doesn't have them. Guess I'll commit somewhere tomorrow.
(looks like my rant is too long, continue in comments)4
Fucking piece of shit German internet man. Some of you might know that Germany probably has the shittiest internet in the EU. And by shitty, I don't mean the downstream speeds you can get (which is how most ISPs justify their crappy network), but the GODDAMN UPSTREAM SPEEDS.
See, I'm just a student, right? I don't run a fucking company or something like that. I don't need / can't afford a symmetrical gigabit connection. But I do a lot of stuff that requires a decent upstream connection.
Fucking Unitymedia (my ISP), if I already decide to buy the goddamn "business plan" (IPv6 & static adresses), at least supply me with some decent upstream speeds. PLEASE!
My current plan costs ~45€ a month for internet and TV (I don't watch, but my two other flat-mates do).
Internet speeds are 150 Mbit/s down and FUCKING 10 Mbit/s up! What??! What the hell am I supposed to do with only 10 Mbit/s?? I'm already completely exhausting the bandwidth and I'm not even done setting everything up! Fucking hell...
I was planning on getting their "upload package" to get at least 20 Mbit/s up – but they removed that option! IT'S GONE, PEOPLE! They said in an interview last year that "customers are not interested in higher upload speeds" and consequently removed that option. WHAT???
"You wanna have state-of-the-art downstream speeds of 400 Mbit/s? Here you go. Oh, our maximum limit of 10 Mbit/s upstream is not enough for you? TOO FUCKING BAD, NOTHING THAT WE CAN OFFER YOU!"
(Seriously though, the best customer internet plan is 400D & 10U)
Goddamn... in this day and age of things like cloud storage etc. even "normal" people definitely need higher upload speeds.
Man, this rant got so long, but I really wanted to get this out. This wasn't even everything though, maybe I'll make a separate rant to elaborate on other issues.
If you are interested, you might want to read up on the following report:
<just got out of this meeting>
Mgr: “Can we log the messages coming from the services?”
Me: “Absolutely, but it could be a lot of network traffic and create a lot of noise. I’m not sure if our current logging infrastructure is the right fit for this.”
Senior Dev: “We could use Log4Net. That will take care of the logging.”
Mgr: “Log4Net?…Yea…I’ve heard of it…Great, make it happen.”
Me: “Um…Log4Net is just the client library, I’m talking about the back-end, where the data is logged. For this issue, we want to make sure the data we’re logging is as concise as possible. We don’t want to cause a bottleneck inside the service logging informational messages.”
Mgr: “Oh, no, absolutely not, but I don’t know the right answer, which is why I’ll let you two figure it out.”
Senior Dev: “Log4Net will take care of any threading issues we have with logging. It’ll work.”
Me: “Um..I’m sure…but we need to figure out what we need to log before we decide how we’re logging it.”
Senior Dev: “Yea, but if we log to SQL database, it will scale just fine.”
Mgr: “A SQL database? For logging? That seems excessive.”
Senior Dev: “No, not really. Log4Net takes care of all the details.”
Me: “That’s not going to happen. We’re not going to set up an entire sql database infrastructure to log data.”
Senior Dev: “Yea…probably right. We could use ElasticSearch or even Redis. Those are lightweight.”
Mgr: “Oh..yea…I’ve heard good things about Redis.”
Senior Dev: “Yea, and it runs on Linux and Linux is free.”
Mgr: “I like free, but I’m late for another meeting…you guys figure it out and let me know.”
Me: “So..Linux…um…know anything about administrating Redis on Linux?”
Senior Dev: ”Oh no…not a clue.”
It was all I could do from doing physical harm to another human being.
I really hate people playing buzzword bingo with projects I’m responsible for.
Only good piece is he’s not changing any of the code.3
But what the FUCK VULTR!!!
It is the third time in two weeks that I actually have to reopen issues because your staff do not know how to troubleshoot correctly!
If there is routingproblems, please check from an external server and not from the same network!
I dont know, but Vultr has significantly lost the servicemind during this year...
Time for another host?7
It is time... to rant about macs!
No, seriously - I had such a different experience about which not many talk in real life or pretend that it never happens....
Model: 2015 mid MBP 15" with second to highest specs (don't have dedicated gpu).
Rattling fucking toy.... Yea, it rattles! If you shake/move ir sit in trait/bus - it non-stop rattles as a fucking toy. Worst part? It's confirmed issue by apple and it manifacturing issue that they are not keen on fixing!!!! WTF? We have 4 macs in our office - all of them fucking rattles... God help me how annoying that is. (Lose LCD control panel that unsticks from glue. Replacing it solves the issue for 1 month if you carry it anywhere).
Constant fucking crashing/updates.... Every morning I wake up and don't have an app that requires confirmation for restart - it's restarted. YAY, turning on all apps once again.... Why you may ask? Well, because if you tinker with software in any way - it fails to update it and hell breaks lose. It's been a long time since High-Sierra came around and the issue is still there (not running Mojave as it conflicts with soft I have... Woo!). Tried few times - updates fail. Resolution? Reinstall OS!
OS conflicts with applications - damn... People told me it works out of the box.... Yeah, as long as you don't upgrade the OS - then it breaks. Why? Well, because.
Piece of shit power supply. With 4 of our office power supplies - 2 of them failed twice withing warranty and once afterwards... Really? Not to mention that all 4 are starting to shear the sleeve or already did (mine is just wrapped with white electrical tape to give it a support... lol).
Bluetooth - who the hell needs that in mac, right? Well, people do. To start with - it conflicts with 2.4GHz wireless network - you might have one of those and not both at the same time. Next thing is using a device that needs constant connection (mouse, headphones, keyboard - non apple branded) - shit... They can't stay connected for more than an hour without any issues... Constant battle to re-connect it, to re-pair the device and all due to smart apple bluetooth settings. Hell, my mouse (logitech MX master) was even printing random symbols in some applications if moved. All of the issues went away after using a bluetooth dongle... WOO!!!!
Xcode... Ahh, you may never prepare your mac if you don't download 17GB of fucking xCode libraries that enables some tools to be installed/runned as you can NOT get them in any other way and you have to install full xCode software in order to get them... YAY! 17GB wasted on my 256GB SSD that I can't upgrade. GREAT!
OsX applications - ah, don't get offended but if you are using them and you are fine with them - you are probably a monkey that loves being told what to do. You can't customise any actions, you can't configure it the way you like - either you accept their default workflow or go kill yourself. Yep... Had issues with calendar, mail, iMessages, safari... None of them fit my needs :)
Resolution scaling... Fucking hell, the display is 2880 x 1800 but all you let me to use is 1440x900 without scaling? Am I blind to you? Scaling the resolution means that you are fucked if some applications don't support scaling very well. Looking at you Jetbrains - your IDES suck at scaling and slows down the pc to a potato....
Now the pros - keyboard is way better than the new ones, trackpad is GREAT - no need for mouse (using it on external 4k displays only), the battery life is great - getting around 6h of continues development time, 8 if using sublime instead of phpStorm and well, that's about it...
I've bought this device due to the fact that at that time mac and windows pc's with similiar specs costed the same while windows pc sucked with their quality of the device and trackpad... Now the situation is better and when time comes for a next upgrade - it's going to be one of these:
Razer Blade 15, Dell XPS 15, Lenovo Carbon X1 series.
And of course - LINUX. I've had enough issues with windows, and had enough of retardness of apple ecosystem, so switching it is a must for me.
Disclaimer: I might be an unhappy customer, a bit picky but I'd like my device to be setted up as I like and continue to have that until I don't like, not until the company decides to break it. Not to mention that paying almost a yearly salary in my country for one device - I'd expect it to be at least reliable and work without issues....
ps. You can disagree with me, this is my personal experience with MBP over the last 3 years :)10
Was forced to do some work on Windows this week (CAD tools that runs only on Windows). I spent a few days just setting up the tools. There were quite a few things I realized I forgot about Windows (as compared to Linux).
1) Installation times are down right horrific. What exactly are the installer doing for 10 minutes?
2) .NET is a cluster fuck. Not even Microsofts repair tool can fix it, but rather just hangs. I ended up using another tool to nuke it and reinstall.
3) Windows binary installs are insanely huge, thus, takes forever to download.
4) The registry is a pointless database that must have been written in hell with the single intent of destroying users will to live. The sole existence of the registry is another proof that completely incompetent engineers designed Windows.
5) Rebooting is the only way to solve many problems. This is another sure sign of a fundamentally fucked up OS design.
6) What the heck is wrong with the GUIs designers? The control panel must be the worst design ever. There are so many levels to get to a particular setting I'm getting dizzy. Nothing gets better by the illogical organisation.
7) Windows networking. A perversion of the tcp/ip stack that makes it virtually impossible to understand a damn thing about the current network configuration. There are at least 3 different places that effects the settings.
8) Windows command prompt. Why did they even bother to leave it in? The interpreter is as intelligent as retarded donut. You can't do anything with it, except typing "exit" and Google for another solution.
8) Updates. Why does it takes hundreds of updates per month to keep that thing safe?
9) Despite all updates that is flying out of Redmond like confetti, it is still necessary to install antivirus to keep the damn thing safe. That cost extra money, and further cost you by degrading performance of your hardware.
10) Window performance. Software runs like it was swimming in molasses. The final stab in the back on your hardware investment, and pretty much sends performance on your hardware back a few hundred bucks more.
11) Closed source is evil. If something crash consistently, you might find a forum that address the issues you have. Otherwise you're out of luck. On the other hand, it might be for the better. I imagine reading the code for Windows can lead to severe depression.
I'm lucky to be a Linux dev, and should probably not complain too much... But really, Windows, go get yourself hit by a truck and die. I won't miss you.14
A little background:
One thing I do is teach programming to kids. Normally it goes very well, but the past month and a half, I've had a class that has some extreme issues because of the school network. We're basically unable to do anything relevant to class because of their network firewall.
New boss starts asking me to get this resolved today. Which I've been trying to do now about five weeks. I told her, at this point our best bet is to just offer a refund if we ever want to have a class there again. She sent my suggestion that we refund this whole class to the CEO. This should get interesting.
The one thing I have on my side is my other boss sent out a company email talking about how I'm an example in a certain regard. Let's hope this supplies balance. But, I kind of doubt it...2
Today I lost a whole hour trying to find the reason why my android app wouldn't connect to a local server. I kept receiving 'xhr poll error'.
Since I had never used or setup a local server in nodeJs, I started reading a million answers on stackoverflow and issues in github.
In the end, it turns out I had disabled wifi on the phone earlier, and was connected to mobile network. F********
Customer complains that the deployed desktop app is slow at site x.
I check it out with users at site x, and indeed, it does have a delay when trying to connect to a share on a server.
Checks with users at site y and z, no issues.
After a bit of digging, the resolve of a DNS record is most likely the culprit.
Send the ticket to the customer network team to investigate.
Get it back after an hour.
"We have pinged the DNS name, and it responds fine, there must be a bug in the application".
Oh and also, I wrote this rant at work, in my head, with a lot more cursewords involed.3
Is it just me or is systemd 240 royally fucked up?
My containers running Arch don't get connected to the network and systemd-networkd fails to start. On my laptop, the network is also unable to connect sometimes. And it consistently fails to complete shutdown without hard poweroff. The only viable temporary solution was rolling back to a snapshot in ALA that still has 239. Is that really supposed to be how a critical system component like the init is supposed to behave and get taken care of its issues?
Fuck QA, amirite 🤪.. seriously, that's even worse than Windows' "features" 😒13
First message of today :
"Hi, I'm X from the Y office. Do you remember that was you to set up our internal network two months ago? Ok, yesterday we called the elettrician to fix two wall plugs. Now our network is completely broken. Come to fix because we think you did something wrong."
I forced myself into some other jobs i had to do for about 2 hours. After that i grab the smartphone to answer.
Oh look, there is another message.
"Hi, always X from the Y office. We just restored the static IPs you setup after we've changed them early this morning. Now everything works again."
Oh really ?1
This "Last up vote didn't get through because of network issues" is probably the best thing ever5
Inspired by @NoMad. My philosophy is that technology is a means to and ends. We’re a tool oriented species. As it relates to software and hardware, they should be your means to achieve your ends without you needing to think. Think of riding a bicycle or driving a car. You aren’t particularly conscious of them - you just adjust input based on heuristics and reflex - while your doing the activity.
For a long time Software has been horrendously bad at this. There is almost always some setup involved; you need to front-load a plan to get to your ends. Funny enough we’re in the good days now. In the early days of GUI you did have to switch modes to achieve different things until input peripherals got better.
I’ve been using windows from 95 and to this day, though it’s gotten better it’s not trivial to setup an all in one printer and scan a document - just yesterday I had to walk my mother through it and she’s somewhat proficient. Also when things break it’s usually nightmare to fix, which is why fresh installing it periodically is s meme to this day. MS still goes to great lengths with their UI so that most people can still get most of their daily stuff done without a manual.
I started Linux in University when I was offered an intro course on the shell. I’ve been using it professionally ever since. While it’s good at making you feel powerful, it requires intricate knowledge to achieve most things. Things almost never go smoothly no matter how much practice you have, especially if you need to compile tools from source. It also has very little in the ways of safe guards to prevent you from hurting yourself. Sure you might be able to fix it if you press harder but it’s less stress to just fresh install. There is also nothing, NOTHING more frustrating than following documentation to the T and it just doesn’t work! It is my day job to help companies with exactly this. Can’t really give an honest impression of the GUI ux as the distros have varying schools of thoughts with their desktop environments. Even The popular one Ubuntu did weird things for a while. In my humble opinion, *nix is better at powering the internet than being a home computer your grandma can use.
Now after being in the thick of things, priorities change and you really just want to get things done. In 2015 I made the choice to go Mac. It has been one of my more interesting experiences. Honestly, I wish more distros would adopt its philosophy. Elementary only adopted the dock. It’s just so intuitive. How do you install an application? You tap the installer, a box will pop up then you drag the icon to the application folder (in the same box) boom you are done. No setup wizards. How to uninstall? Drag icon from app folder to trash can. Boom done. How to open your app? Tap launch pad and you see all your apps alphabetically just click the one you want. You can keep your frequent ones on the dock. Settings is just another app in launchpad and everything is well labeled. You can even use your printers scanner without digging through menus. You might have issues with finder if your used to windows though and the approach to maximizing and minimizing windows will also get you for a while.
When my Galaxy 4 died I gave iPhone a chance with the SE. I can tell you that for most use cases, there is no discernible difference between iOS and modern android outside of a few fringe features. What struck me though was the power of an ecosystem. My Mac and iPhone just work well together. If they are on the same network they just sync in the background - you need to opt in. My internet went down, my iMac saw that my iPhone had 4g and gave me the option to connect. One click your up. Similar process with s droid would be multi step. You have airdrop which just allows you to send files to another Apple device near you with a tap without you even caring what mechanism it’s using. After google bricked my onHub router I opted to get Apples airport series. They are mostly interchangeable and your Mac and iOS device have a native way to configure it without you needing to mess with connecting to it yourself and blah. Setup WiFi on one device, all your other Apple devices have it. Lots of other cool stuff happen as you add more Apple devices. My wife now as a MacBook, an IPad s d the IPhone 8. She’s been windows android her life but the transition has been sublime. With family sharing any software purchase works for all of us, and not just apples stuff like iCloud and music, everything.
Hate Apple all you want but they get the core tenet that technology should just work without you thinking. That’s why they are the most valued company in the world14
Why is it that you guys are not seeing the big picture and reading between the fucken lines... why is it that people always have to run to legislation to fix their problems .... THIS IS WHY.. the other generation accomplished so much more because when there’s a problem they came up with a solution many times better than the status quo.
Those people are few and far between now.. those folks are the innovators. You know whom I’m referring to... those people didn’t whine to create laws to fix or protect their industry from competitors.
We need to stop looking toward our government to fix our issues... especially regarding this issue.. WHY because the people in government ARE NOT TECH PEOPLE!!! THEY DONT EVEN KNOW HOW COMPUTERS WORK! for Pete’s sake folks we had a lady in there who thought the term whip the server ment to literally clean it with a rag... come-on guys, do what they did years ago you don’t like something FIX IT.. by creating something new!
There’s a reason our grandparents generation made it to the fucken moon with less technology than a calculator, BECAUSE THEY PROBLEM SOLVED!
What have we achieved in the last 5 years that is really “big”... fucken apps
Unite together build the next internet learning from the issues we’ve seen with the internet over the last 30 years.. No it won’t be quick no it won’t be easy but nothing revolutionary is easy.
It took 6 years to land a man on the moon, I think we can rebuild the network infrastructure in that time OR FAR LESS if we unite together! Without the government interference we can eliminate the ISPs from the equation and screw them over for screwing us for so long
My group is has the solution, the vision and need, to get this done be we can’t do it alone I will make the official public statement within 24 hours of the vote results...
explaining everything, the plan, the work, EVERYTHING.
We need more people.
For reference the plan can be summarized like this.. nonprofit CoOp Tier 1 ISP.. members being the end users from both sides of the equation ...
Contact me here,
Or SnapChat: theqsolution
Until I release all the contact info.4
Goes back to high school.....
Me: This laptop is having issues logging into the network. I have tried restarting as well as restarting the WiFi. You probally should submit a ticket so IT knows it is broken.
Teacher: They would not fix it anyway.
TL;DR: Teacher thinks that telling IT to fix a computer would result in nothing happening.2
Took the day and rebuilt my home network with no major issues along the way.
Migrated to a new NAS and gave a Raspberry Pi a new life as a PiHole + DHCP.
Rant: Why can't things always go this smoothly on my projects? 😎2
I love it when asshats, that wear testicles for sunglasses, like to ask me a question about my past experience with a given technology. Let's call it "X". After I've said my piece about the desired effect "X" was supposed to achieve, and describe the environment/scope where "X" was used, and describe the pain points I've encountered with it or the headaches "X" has caused in those environments, these camel spunk garglers then try to immediately rebut me by saying that every one of the times they've set "X" technology up it's worked just fine.
So, I kindly remind them that my past experience was in large enterprises where "X" technology just doesn't scale well so I've seen some issues with it.
Spunk Gargler: "Hmmm, must've just not been setup correctly."
I lose my shit (internally of course because I can't afford to be without a job right now.) and say, "I'm not so sure that it wasn't setup correctly, I just don't think that 'X' works properly at the scale of 500+ employee environments well. You've only ever set it up in small offices of like - what, 20 users?"
Shitlord McHerp-a-Derp who's Drunk on Spunk: "Maybe, but it just sounds like a bad configuration was causing those issues to me."
He shuffled back into his office shortly after I basically told him he's a fucking chump playing small team tactics and I've seen shit at scale so I've seen first hand what does and does not work well.
I'm writing this because this is the same fucking imbecile that has only ever encountered a /23 network once before from a client they inherited from a previous MSP team and they didn't know how to "safely change it" to a /24 so they just left it in place.
(BTW, just for the non-networking guys/gals out there, I'm sure you've already guessed it, but a /23 network is NOT a fucking problem!)
These puffy cancerous taint boils that call themselves IT engineers are the fucking problem!
I'm not a dev by trade or training, but trying to learn DevOps, and I can totally see why Dev teams can/sometimes get pissed with infrastructure teams... infrastructure/helpdesk side of IT is full of these fucking meat heads.1
When some other team wants to blame us because they're getting a HTTP Status Code 0....
That's not even a valid status... IT MEANS YOU ABORTED THE REQUEST AND KILLED THE CONNECTION...
OH STILL OUR FAULT... WELL DO U KNOW ABOUT NETWORK ISSUES AND SERVER OVERLOADING WHEN U SPAM IT WITH TOO MANY REQUESTS?
OH YOU RETRIED? HOW DID YOU RETRY? BETTER NOT BE SPAMMING US WITH MORE REQUESTS...
EVER HEARD OF TCP/IP BACK OFF LOGIC....4
The $customer gets a device from us, with th wifi connected as specified in the order. $customer connects it to the mains and monitor, puts in the dongle and the connection is established.
Fast forward 3 weeks, now everything went south. The device does not connect to the network, the service is offline. Our first question: "Has someone modified the WiFi name or password?"
$customer: "No, there were no changes in the WiFi"
So the full arsenal of debugging the connection over LAN starts, interrupted by $customer unplugging the device "because he needs LAN now"
After sometime, we figured out, everything is fine with the device, and ask $customer once again, if the config $ssid and $password is correct.
$customer: "Oh, we changed the name to $ssid2 because it looks nicer, is that a problem?"
Internal: "Are you f*kin kidding me? I asked you exactly that"
Me: "Alright, that explains the issues. Please tell us in advance if you want to change something with the WiFi."
So a particular client of ours has been having an issue with our software for the past few days. In short, they get an error when trying to do their end of day tasks. They simply have to restart the software and the error goes away until the next day when they have to do the process again. The developers are looking into it, along with other bugs and features, in other words this particular issue isn't the only one that's getting worked on.
For some reason, this store owner somehow believes that his issues are the only ones we are dealing with right now. One of the other techs already had the pleasure of speaking with him on the first night this happened, explained to him about simply restarting the software, but that apparently went in one ear and out the asshole.
I am not one of the developers at our office, simply tech support for now (maybe i'll migrate over once i feel 1337 enough). I had to repeat essentially the same answer to him.
Me: "The good news is you just have to restart the software and when you perform the end of day functions, you will not see the error. it will come back again each night until the developers fix the bug and release an update"
him: when will that be finished?
me: I do no have an estimated time, but a message has been sent to the developers about this issue, so once they resolve the issue, an update will be released.
him: but yeah, how do i fix this issue? I still don't have any answers.
at this point it's pretty much goto 10, reiterating the same stuff I told him, just slightly reworded. At some point he asked who the developers are, as if that was going to make any kind of difference what so ever. It's just baffling how some of these people are running businesses with the attitude they have. What's more puzzling is some of the people who call have been at these places for some years and have used our software and hardware just about as long as the stores have been there. They call and it's as if computers were JUST now being brought to their attention.
"I plugged the keyboard up to the modem".....pc tower
"I typed in the ip address"..... www.google.com
Half the damn time they can't tell if a particular printer is directly connecting to their station (the obvious cable going from the printer to the station itself) or if it's a network printer (again, obvious cable going from printer to the port on the wall). God forbid it's directly connected, because I have to ask "Is it a usb cable or serial cable... with the screws on the sides of the connection" and thankfully i haven't got "Both" as an answer yet (and i'm sure I will at some point). But even that is too hard of a question, typically 10 seconds of "Uhhh......" followed by " I think..." then me asking "Does it look like an internet cable?" and finally a yes or no from them. At that point it's just about the station not being upset at me and allowing me to install it properly with no issues.
I'm seriously thinking of sending god damn custom-made pop-up books with instructions on how to fix the broader issues and mailing it out to each store.2
Concerning my last post on the two Commodores, (https://devrant.com/rants/963917/...) here's the great story behind the boxed one.
So at the place where I interned over the summer, I helped the tech dept. (IT herein) move to a new bldg. We had to dismantle most of the network infrastructure stuff, so we were in the server room a lot. First day on the job, Boss shows me server room, I'm amazed and all because this is my first real server room lol.
We walk around, and there's a Commodore 64 box on a table, just kinda there. I ask, "Uh, is that actually a C64?" B: "Yeah, that's E's." Me: "E?" (name obfuscated) B: "Yeah, E's a little crazy." Me: "Is it actually in there?" B: "Absolutely, check it out!" *opens box and sees my jaw drop* Me: "Well, alrighty then!" So that lingers in my mind for a while until I meet E. He is a fuckin hilarious guy, personifying the C64, making obscure and professionally inappropriate references. Everyone loves him, until he pranks them. He always did.
We’re in the server room, wiping some Cisco switches or something, and we have some downtime, so I ask him about the 64, and he's like "Yeah, I haven't had time to diagnose her issues much. If you want her, go ahead, see if you can make it work!" Me: "You're kidding, right?" E: "Nah, not at all!"
That day I walked out with a server motherboard, 2 Xeon CPUs and some RAM for the server (all from an e-waste bin, approved for me to take home from boss) and a boxed C64. Did a multimeter test on the PSU pins, one of the 9vAC pins is effectively dead (1.25v fluctuating? No thanks.) but everything else is fine except for a loose heatsink and a blown fuse in each C64. Buying the parts tonight. I wanna see this thing work!1
My client installed a new proxy that severely blocks out most of their own intranet, including their IT service desk. We can't raise tickets to let them know and their email just redirects us to their service desk. Fuck me these guys are idiots.
Will these fucktards just FUCKING FIX EDUROAM! alright it's a WiFi network that works across the globe and there's challenges with that BUT DON'T MAKE ME HAVE TO MANUALLY RECONNECT EVERY random amount of time!!! I'll shove that fucking MSCHAPv2 down you fucking throats with that sweet sweets PEAP sauce bloody arseholes.
What do you fucking mean it works fine? NO IT BLOODY DOESN'T! Get your shit together and at least handle DHCP leases correctly and make them not expire every fucking minute!!
Also, how the flipping fuck does connecting to the eduroam VPN from within fucking eduroam make it more stable? Only ever so slightly though. Incompetent pieces of dick sucking craptards don't make me have to bring out the ethernet jack EVERY FUCKING TIME at school for christ's sake.
No, it doesn't make it my problem because I'm running Linux. Look on the Internet. The forums are fucking filled with people having issues and your docs are from 5 years ago so please kindly FUCK Off!!!15
Proper rant tonight... I was getting an upgrade to my home entertainment today. It needed an engineer visit. What a useless clown he turned out to be.
2 hrs after arriving, he left and things weren't working remotely right at all. But it was Saturday and he was off the clock so I had to suck it up. No option to back out either - it was all activated and I had to accept it.
He spent most of the time arguing with me about my home network was set up and how it was wrong and how it was important for the overall system to work. Being a geek and having done research, I couldn't understand this - that wasn't how it was meant to be, I knew. I accept my home wiring is a bit odd, but I've had a working system for years because it's all necessary.
After all the faffing about and purchase of some new powerline units (which I accept I needed anyway but where unrelated to this set up), looking more into it myself, it is now up and running correctly.
I am thoroughly pissed at the ineptitude of the engineer. He clearly doesn't understand how the system works. He doesn't understand how powerline works and how it's a life saver for people with awkwardly shaped houses or thick walls where Wi-Fi is useless. If he had, we would have had far fewer issues and I wouldn't have had the stress of thinking I'd killed our home entertainment and internet and there was nothing I could do about it.
I don't blame the provider (besides them clearly not providing adequate training). But this was arrogant uselessness. At least I had the knowledge to understand how it was meant to work and get it sorted myself.
Maybe it could be a useful sideline job if I get fed up with developing.7
The year was 2006. During the first half of my career, I use to work in the NOC. This was before I made my transition to software engineer. I worked on the third shift for a bank services company. The company was on a down turn. Just years earlier they just went public, and secured a deal with a huge well known bank. Eventually they entered a really bad contract with the bank and was put into a deal they couldn't deliver on. The partnership collapse and their stock plummeted. The CEO was dismissed, and a new CEO came in who wanted to "clean things up".
Anyway I entered the company about a year after this whole thing went down. The NOC was a good stepping stone for my career. They let me work as many hours as I liked. And I took advantage of it, clocking in 80 hours a week on average. They gave me the nick name "Iron Man".
Things started to turn around for the company when we were able to secure a support contract with a huge bank in the Alabama area. As the NOC we were told to handle the migration and facilitate the onboarding.
The onboarding was a mess with terrible instructions that didn't work. A bunch of software packages that crashed. And the network engineers were tips off, as they tunnel between our network and the banks was too narrow, creating an unstable connection between us and them. Oh, and there were all sorts of database corruption issues.
There was also another bank that was using an old version of our software. The sells team had been trying to get them off our old software for over a year. They refuse to move. This bank was the last one using this version, and our organization wanted to completely cut support.
One of the issue we would have is that they had an overnight batch job that had an ETA to be done by 7 AM. The job would often get stuck because this version of the software didn't know how to fail when it was caught in an undesired state. So the job hung, and since the job didn't have logging, no one could tell if it failed unless the logs stopped moving for an hour. It was a heavily manually process that was annoying to deal with. So we would kill the JVM to "speed" the job up. One day I killed the JVM but the job was still late. They told me that they appreciated the effort, but that my job was only to report the problem and not fix it.
This got me caught up in a major scandal. Basically they wanted the job to always have issues everyday. Since this was critical for them, all we needed to do was keep reporting it, and then eventually this would cause the client to have to upgrade to our new software. It was our sales team trying to play dirty. It immediately made me a menace in the company.
For the next 6 months I was constantly harassed and bullied by management. My work was nitpicked. They asked me to come into work nearly everyday, and there was a point I worked 7 days with no off days. They were trying to run me so dry that I would quit. But I never did.
On my last day at the company, I was on a critical call with a customer, and my supervisor was also on the line. My supervisor made a request that made no sense, and was impossible. I told her it wasn't possible. She then scalded me on the call in front of customers. She said "I'm your supervisor, you're just a NOC technician, you do what I say and don't talk back". It was embarrassing to be reprimanded on a call with customers. I never quite recovered from that. I could fill myself steaming with anger. It was one of the first times in my adult life that I felt I really wanted to be violent towards someone. It was such a negative feeling I quit that day at the end of my shift with no job lined up.
I walked away from the job feeling very uncertain about my future, but VERY relieved. I paid the price, basically unable to find a job until a year and a half later. And even was forced to move back in with my mother. After I left, the company still gave my a severance. Probably because of the supervisor's unprofessional conduct in front of customers, and the company probably needed to save face. The 2008 crash kept me out of work until 2009. It did give me time to work on myself, and I swore to never let a job stress me out to that degree. That job was also my last NOC job and the last job where did shift work. My next few jobs was Application Support and I eventually moved into development full time, which is what I always wanted to do.
Anyway sorry if it's a bit long, but that's my burnout story.
So I recently finished a rewrite of a website that processes donations for nonprofits. Once it was complete, I would migrate all the data from the old system to the new system. This involved iterating through every transaction in the database and making a cURL request to the new system's API. A rough calculation yielded 16 hours of migration time.
The first hour or two of the migration (where it was creating users) was fine, no issues. But once it got to the transaction part, the API server would start using more and more RAM. Eventually (30 minutes), it would start doing OOMs and the such. For a while, I just assumed the issue was a lack of RAM so I upgraded the server to 16 GB of RAM.
Running the script again, it would approach the 7 GiB mark and be maxing out all 8 CPUs. At this point, I assumed there was a memory leak somewhere and the garbage collector was doing it's best to free up anything it could find. I scanned my code time and time again, but there was no place I was storing any strong references to anything!
At this point, I just sort of gave up. Every 30 minutes, I would restart the server to fix the RAM and CPU issue. And all was fine. But then there was this one time where I tried to kill it, but I go the error: "fork failed: resource temporarily unavailable". Up until this point, I believed this was simply a lack of memory...but none of my SWAP was in use! And I had 4 GiB of cached stuff!
Now this made me really confused. So I did one search on the Internet and apparently this can be caused by many things: a lack of file descriptors or even too many threads. So I did some digging, and apparently my app was using over 31 thousands threads!!!!! WTF!
I did some more digging, and as it turns out, I never called close() on my network objects. Thus leaving ~30 new "worker" threads per iteration of the migration script. Thanks Java, if only finalize() was utilized properly.1
Without a doubt it has to be the internal company search engine/file finding tool @thewamz and I wrote.
The company has a wide UNC network with files scattered all over the place and they need a way to keep track of where the files get moved to (they can and do get moved). The original tool was written in Java/Tomcat and didn't use any frameworks or utilities beyond custom written ones, no orms, and the SQL was just raw strings. The program didn't take into account that files might be moved or deleted so it never removed anything from the database, it just kept adding files and never removing them.
It however never stores files itself, just links to files elsewhere on the UNC network.
It took six months to get it into what might be a stable beta or release candidate state. The user interface is good, very simple and intuitive, the whole thing was rewritten in python/django, there were issues with utf 8 (and mysql not fully supporting utf 8 in its own utf 8 mode), we added a regex search mode (which was sorely lacking), the search used to take up to fifteen minutes however we sped it up to less than a minute (worst case when a user simply puts "^$" as the regex search). It has a multi threaded design which does some checks to ensure it doesn't spawn too many threads and get stuck in constant Gil switching. Still some bugs to fix, like moving the processing of results returned by the server in a web worker so that the content widget doesn't lock up processing millions of search results and moving the back end to use asynchronous python might gain a performance boost. But on the whole I think the system is ready to replace the older system that all the users are frustrated with and constantly complain about.
However the annoying bit is... How to actually get the new system online, while I am responsible for the development of tools and their maintenance, I am not responsible for their initial deployment and that means I have no idea when (or even if) my new tool will even ever be released :/
I am just student looking for job, and got this pre interview test:
Develop an Android or iOS app with login and password input field, download button, place for image we prvided.
... reading further:
What we are looking for in the code ?
-consistent formatting of the source code
-clean, robust code without smells
-consistent abstractions and logical overall structure
-no cyclic dependencies
-code organized in meaningful layers
-low coupling and high cohesion
-descriptive and intention-revealing names of packages, classes, methods etc.
-single small functions that do one thing
-truly object-oriented design with proper encapsulation, sticking to DRY and SOLID principles, without procedural anti-patterns
-lots of bonus points for advanced techniques like design patterns, dependency injection, design by contract and especially unit (or even functional or integration) tests
-the app should be fully functional, with every state, user input, boundary condition etc. taken care of (although this app is indeed very small, treat it as a part of big production-ready project)
-the app should correctly handle screen orientation changes, device resources and permissions, incoming calls, network connection issues, being pushed to the background, signing deal with the devil :D and other platform intricacies and should recover from these events gracefully
-lowest API level is not defined - use what you think is reasonable in these days
-bonus points if the app interacts with the user in an informative and helpful way
-bonus points for nice looks - use a clean, simple yet effective layout and design
... I mean really ? and they give me like 2 days ?4
Why must some of our clients have 2 cups and a string isp. Your business is in fucking Chicago, you have many choices for better connection. Your competitor, who we service, never had networking issues and theyre only several blocks away from you...... I hope you burn alive at the same speed as your network connection.
My work product: Or why I learned to get twitchy around Java...
I maintain a Java based test system, that tests a raster image processor. The client is a Java swing project that contains CORBA bindings to the internal API of the raster image processor. It also has custom written UI elements and duplicated functionality that became available in later versions of Java, but because some of the third party tools we use don't work with later versions of Java for some reason, it's not possible to upgrade Java to gain things as simple as recursive directory deletion, yes the version of Java we have to use does not support something as simple as that and custom code had to be written to support it.
Because of the requirement to build the API bindings along with the client the whole application must be built with the raster image processor build chain, which is a heavily customised jam build system. So an ant task calls out to execute a jam task and jam does about 90% of the heavy lifting.
In addition to the Java code there's code for interpreting PostScript files, as these can be used to alter the behaviour of the raster image processor during testing.
The server isn't much better though. It's a tomcat based application that was written by someone who had never built a tomcat application before, or any web application for that matter and uses raw SQL strings instead of an orm, it doesn't use MVC in any way, and insane amount of functionality is dumped into the jsp files.
It too interacts with a raster image processor to create difference masks of the output, running PostScript as needed. It spawns off multiple threads and can spend days processing hundreds of gigabytes of image output (depending on the size of the tests).
We're stuck on Tomcat seven because we can't upgrade beyond Java 6, which brings a whole manner of security issues, but that eager little Java updated will break the tool chain if it gets its way.
Between these two components we have the Java RMI server (sometimes) working to help generate image data on the client side before all images are pulled across a UNC network path onto the server that processes test jobs (in PDF format), by reading into the xref table of said PDF, finding the embedded image data (for our server consumed test files are just flate encoded TIFF files wrapped around just enough PDF to make them valid) and uses a tool to create a difference mask of two images.
This tool is very error prone, it can't difference images of different sizes, colour spaces, orientations or pixel depths, but it's the best we have.
The tool is installed in both the client and server if the client can generate images it'll query from the server which ones it needs to and if it can't the server will use the tool itself.
Our shells have custom profiles for linking to a whole manner of third party tools and libraries, including a link to visual studio 2005 (more indirectly related build dependencies), the whole profile has to ensure that absolutely no operating system pollution gets into the shell, most of our apps are installed in our home directories and we have to ensure our paths are correct for every single application we add.
And... Fucking and!
Most of the tools are stored as source bundles in a version control system... Not got or mercurial, not perforce or svn, not even CVS... They use a custom built version control system that is built on top of RCS, it keeps a central database of locked files (using soft and hard locks along with write protecting the files in the file system) to ensure users can't get merge conflicts by preventing other users from writing to the files at all.
Branching is heavy weight and can take the best part of a day to create a new branch and populate the history.
Gathering the tools alone to build the Dev environment to build my project takes the best part of a week.
What should be a joy come hardware refresh year becomes a curse ("Well fuck, now I loose a week spending it setting up the Dev environment on ANOTHER machine").
Needless to say, I enjoy NOT working with Java. A lot of this isn't Javas fault, but there's a lot of things that Java (specifically the Java 6 version we're stuck on) does not make easy.
This is why I prefer to build my web apps in python or node, hell, I'd even take Lua... Just... Compiling web pages into executable Java classes, why? I mean I understand the implementation of how this happens, but why did my predecessor have to choose this? Why?2
Hi everyone. I'm sorry to take up some of your time. I've recently moved out and am now living alone (broke up with my gf of 3 years). After all the work that I put into moving out, I'm out of energy and I can't find it in myself to do what I want to do. I feel a bit trapped and need some help. If anyone knows a way out of this shithole I put myself into, I'd greatly appreciate it.
I'm also having network issues and, on top of that, I can't install CentOS 7 on a smart array... Not so smart after all, apparently.
I'm generally feeling like I've made a bad choice, but, deep inside, I know I want to focus on work and learning.
Any tips appreciated. Thanks!8
My way through front end started with a simple request of changing a blog CSS.. which I knew nothing of. Looking back it feels odd starting with CSS then HTML, JS and now first PHP; but oh well what ever works?
That was a couple of years ago and lately I've done couple of minor freelance projects and have helped students at my university with it (I studied network engineer because I doubted myself..).
I never felt that I knew enough of programming or front end.. that I wasn't really "good enough" to apply for a job even though I almost finish the frontend certificate at FCC, did the Android application schoolar via Google and have worked a lot with Adobe CC overall and help people with their front end issues from school, even with library's I haven't touched (mighty power of Google search and quick learning).
Now sit here as a stockmen in my lunch break being all excited for one thing based on a conclusion I took last week.. if I never try to follow my passion for it, I'll stay a stockmen.. so I applied for s frontend job and got a call in for an interview today. I still doubt myself but figure I must try.. I do not wish to stay where I have been the whole year but to move on and work as a front end Dev. If I get it.. than Santa came early and if not.. well.. keep on evolving and trying I guess. *Holding thumbs*
The chief came with a new idea.. something that runs ‘a side’ of our main project as some sort of manager. The database wasn’t designed with that in mind..
Now I’m wondering if I’m having issues because I could’ve designed the database better so that this wouldn’t be an issue or if I shouldn’t “blame” myself, because that wasn’t the initial idea. 🤷🏻♂️
We had to do a lot of migrations to keep adding and changing for the “new ideas” and now the database is a mess.. but it’s like.. too “big” to just start a new clean database structure, but it could optimize everything and make the backend easier/cleaner instead of dirty hacks/queries to combine all the different features.
As a ‘bad’ example, but the idea started as a todo list, migrated to a social network and is now migrating to something like smartschool to be able to manage users and groups, but with different features than the ‘social network’ had... I’m wondering what’s next..2
As a developer for cloud based applications, if I get errors that are weird or I've never seen before it's always networking issues.
Ok, first context of the question: This meme I saw the other day on here has been sticking with me. It wasn't new or anything but I wasn't quite feeling it the first time I saw it either. I'm referring to the meme of the browsers being compared to various weaponry. I'm not trying to fanboy out here, this is a legit curiosity so lets not start dragging out the battleflags.
But seriously, y does everyone hate on safari so much? **🦗 chirp, 🦗 chirp, **
Again not trying to say it is, most of you understand the more technical side of things better than I do. But the reason I question it is because having gotten ill will chrome for bogging down my computer yet again, I got pissed and deleted it off of here so fast that I didn't even thinking to back up anything. Not that safari doesn't do that, but i've been using it for quite a while so I don't get quite get so impulsive because I usually know when I'm starting to hit its limits. Limits seeming to be in both cases, network bandwidth, not browser capability. But the low bandwidth to me would seem to at least point out a significant change or spike with either in the least and as far as I can tell, at least for as long as I've had xx amount of extension on chrome, it seems to run a little slower. Granted I can run a slim trim chrome and in fact, firefox isn't being discussed here yet for that very reason, I haven't bogged it extras. The thing about safari though, and I honestly never knew this til today because I've been using the same handful of features since snow, the "extras" you need to just simply manage the other two browsers. And also, if theyre not they're already in hot key form then it takes to seconds to set them up. Even semi complex tasks, requiring what would ordinarily have to be done by someone building an extension can be mimicked by automator with minimal effort.
In any case what i'm getting at is not so much to take up for safari, but is it just a speed thing, there sorta some vast majority of security issues opposed to the others, what is it? If its a speed thing are we talking with iCloud fully operational or slimly managed for the minimal needed. Same with chrome/firefox extensions. Seems like just adding one sometimes, running it or not seems to have an affect.12
I am lazy to pair my android device to another android device via blutooth for tethering(Pan Access Network) for internet access. Wifi sucks too much battery. Whenever pairing is done, device asks for prompt message stating "yes" or "no" for connection. I want that it automatically by default give permission to connect. Is there any possible solution (maybe through adb shell or something). I have tried every site related to this issue but most of them have unix system Bluetooth issues so no luck. Reply if you know a fix.1
rant.author != this
Christ people. This is just sh*t.
The conflict I get is due to stupid new gcc header file crap. But what
makes me upset is that the crap is for completely bogus reasons.
This is the old code in net/ipv6/ip6_output.c:
mtu -= hlen + sizeof(struct frag_hdr);
and this is the new "improved" code that uses fancy stuff that wants
magical built-in compiler support and has silly wrapper functions for
when it doesn't exist:
if (overflow_usub(mtu, hlen + sizeof(struct frag_hdr), &mtu) ||
mtu <= 7)
and anybody who thinks that the above is
(b) efficient (even with the magical compiler support)
(c) particularly safe
is just incompetent and out to lunch.
The above code is sh*t, and it generates shit code. It looks bad, and
there's no reason for it.
The code could *easily* have been done with just a single and
understandable conditional, and the compiler would actually have
generated better code, and the code would look better and more
understandable. Why is this not
if (mtu < hlen + sizeof(struct frag_hdr) + 8)
mtu -= hlen + sizeof(struct frag_hdr);
which is the same number of lines, doesn't use crazy helper functions
that nobody knows what they do, and is much more obvious what it
I guarantee that the second more obvious version is easier to read and
understand. Does anybody really want to dispute this?
Really. Give me *one* reason why it was written in that idiotic way
with two different conditionals, and a shiny new nonstandard function
that wants particular compiler support to generate even half-way sane
code, and even then generates worse code? A shiny function that we
have never ever needed anywhere else, and that is just
And yes, you still could have overflow issues if the whole "hlen +
xyz" expression overflows, but quite frankly, the "overflow_usub()"
code had that too. So if you worry about that, then you damn well
didn't do the right thing to begin with.
So I really see no reason for this kind of complete idiotic crap.
Tell me why. Because I'm not pulling this kind of completely insane
stuff that generates conflicts at rc7 time, and that seems to have
absolutely no reason for being anm idiotic unreadable mess.
The code seems *designed* to use that new "overflow_usub()" code. It
seems to be an excuse to use that function.
And it's a f*cking bad excuse for that braindamage.
I'm sorry, but we don't add idiotic new interfaces like this for
idiotic new code like that.
Yes, yes, if this had stayed inside the network layer I would never
have noticed. But since I *did* notice, I really don't want to pull
this. In fact, I want to make it clear to *everybody* that code like
this is completely unacceptable. Anybody who thinks that code like
this is "safe" and "secure" because it uses fancy overflow detection
functions is so far out to lunch that it's not even funny. All this
kind of crap does is to make the code a unreadable mess with code that
no sane person will ever really understand what it actually does.
Get rid of it. And I don't *ever* want to see that shit again.