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Another story on the spirit of wk93. TL;DR I DOS'd the whole campus network for some beers.
In highschool teachers had this blackboard system (a sort of moodle) and we used to have really lazy teachers who only read the PowerPoint presentations and made us take notes. One day I was fed up with their bullshit and figured these lazy ass professors wouldn't "teach" crap as soon as there was no internet connection...so the race was on...
10 minutes before the bell rang a friend and I managed to break in into a computer lab, I booted up Kali and searched for the access points, 3 routers through the building all with CISCO OS.
I figured they had all the default configs, time was running out so I decided to Smurf the three access points with the lab's IP range, scheduled an automatic shutdown in 2 hours and blocked the PC. The bell rang and as predicted, no internet, no class, my friends and I used that free time to go to a bar (on a Monday afternoon).
Funny side note, since the 3 routers were down the whole network collapsed, no cameras, no access control, no faculty network or any network. We kept doing it and every time we did campus security would be desperately searching for someone with a black hoodie.6
Data scientist: we need to whitelist a pod to connect to a database
Me: Whitelist? We don't use whitelists on private databases
DS: It's the new data warehouse database
Me: is it on <X> VPC?
DS: I'm not sure what that means but its ip is <real world ipv4>
Me: Are you hosting a publicly accessible database with all our end users information?!
Me: There goes our SOC2 audit controls...
DS: how long until you can white list it?
Me: I won't be whitelisting it. You need to put it on a private VPC and peer with the cluster, you'll have to rebuild all the Terraform and redeploy
DS: We didn't use Terraform because it takes too long, just white list the pods IP.
Me: No. I'm contacting the CISO and CTO...20
Windows, God damn you piece of fucking shit.
Why the fuck can't you make networking fucking easy like literally every other fucking operating system in the goddamn fucking world?
Why the fuck can't I spoof mac addresses so that I have the same IP address regardless of if I'm on a hard line or wireless?
Who in their fucking right mind thought that the pro version of Windows wouldn't need to do that?
I don't even like using you at this point, I'm forced to use you for work.
There's literally not enough explicitives that I can chain together to sufficiently convey how much I fucking hate you Microsoft. So enjoy this seizure inducing tourette's mode compilation.
Fuck shit cock piss mother fucker asshole bitch mother fucker sick and tired of your fucking shit Microsoft you fucking cuck piece of shit nobody fucking likes you they only have to use you because no fucking business in their right mind is going to spend the millions of dollars it cost to fucking switch over to fucking Mac or Linux I hope you fucking choking a bag of HIV riddled flaming dicks you fucking piece of shit.17
Worst hack/attack I had to deal with?
Worst, or funniest. A partnership with a Canadian company got turned upside down and our company decided to 'part ways' by simply not returning his phone calls/emails, etc. A big 'jerk move' IMO, but all I was responsible for was a web portal into our system (submitting orders, inventory, etc).
After the separation, I removed the login permissions, but the ex-partner system was set up to 'ping' our site for various updates and we were logging the failed login attempts, maybe 5 a day or so. Our network admin got tired of seeing that error in his logs and reached out to the VP (responsible for the 'break up') and requested he tell the partner their system is still trying to login and stop it. Couple of days later, we were getting random 300, 500, 1000 failed login attempts (causing automated emails to notify that there was a problem). The partner knew that we were likely getting alerted, and kept up the barage. When alerts get high enough, they are sent to the IT-VP, which gets a whole bunch of people involved.
VP-Marketing: "Why are you allowing them into our system?! Cut them off, NOW!"
Me: "I'm not letting them in, I'm stopping them, hence the login error."
VP-Marketing: "That jackass said he will keep trying to get into our system unless we pay him $10,000. Just turn those machines off!"
VP-IT : "We can't. They serve our other international partners."
<slams hand on table>
VP-Marketing: "I don't fucking believe this! How the fuck did you let this happen!?"
VP-IT: "Yes, you shouldn't have allowed the partner into our system to begin with. What are you going to do to fix this situation?"
Me: "Um, we've been testing for months already went live some time ago. I didn't know you defaulted on the contract until last week. 'Jake' is likely running a script. He'll get bored of doing that and in a couple of weeks, he'll stop. I say lets ignore him. This really a network problem, not a coding problem."
IT-MGR: "Now..now...lets not make excuses and point fingers. It's time to fix your code."
IT-VP: "I agree. We're not going to let anyone blackmail us. Make it happen."
So I figure out the partner's IP address, and hard-code the value in my service so it doesn't log the login failure (if IP = '10.50.etc and so on' major hack job). That worked for a couple of days, then (I suspect) the ISP re-assigned a new IP and the errors started up again.
After a few angry emails from the 'powers-that-be', our network admin stops by my desk.
D: "Dude, I'm sorry, I've been so busy. I just heard and I wished they had told me what was going on. I'm going to block his entire domain and send a request to the ISP to shut him down. This was my problem to fix, you should have never been involved."
After 'D' worked his mojo, the errors stopped.
Month later, 'D' gave me an update. He was still logging the traffic from the partner's system (the ISP wanted extensive logs to prove the customer was abusing their service) and like magic one day, it all stopped. ~2 weeks after the 'break up'.8
Linux just made my day. Everybody knows how Windows won't let you shutdown your hardware until it updates, right? So last night I forgot I was upgrading Manjaro in a background terminal (full distro update, tons of packages) and hibernated my rig, plugged it off, took it to a different location. Today I hooked it up - different network, IP, etc. - it woke up, finished compiling whatever it ended up on then downloaded, compiled and installed everything else, said "Thank you very much!" and dropped the mic. Someone tell me this isn't pure awesomeness! 😂
It asked again for root password but other than that... shrugged off 12 hours difference like a boss!18
It was nice having you in my house, but it's come to the point where our ways part. I must go on and you must be recycled. You've served me well all those 7 years, my friend.
It's not me, it's you. You've grown old and unreliable. Your capacitors must have dried out and can no longer serve reliable wifi connections. I keep on getting lost ICMP packets and connection outages altogether. While these things could happen to any router, definitely not every router has a 13-16 second long wifi outage every minute. I cannot have 2 peoples' work depend on a wifi connection where a ping to a LAN IP takes 58204ms. I just.. can't. You've become a liability to my family.
I'm pissed, because I cannot afford video calls with my colleagues.
I'm pissed, because my wife spends good 5 minutes every call asking "can you hear me? how about now?" and repeating herself over and over.
I'm pissed, because I can no longer watch Netflix or listen to YT Music uninterrupted by network outages.
I'm pissed, because my Cinnamon plugins freeze my UI, waiting for network response
But most of all I'm pissed, because I was disconnected from BeatSaber multiplayer server when I scored a Full Combo in Expert "Camellia: Ghost" - right before I got a chance to see my score.
I gave you 2 second chances by factory-resetting you. I admit you got better. And then got back to terrible again.
I can no longer rely on you. It's time to say our goodbies and part our ways.
P.S. as a proof of your unreliability I'm attaching outputs of ping to a LAN IP and pingloss to the same IP (pingloss: https://gitlab.com/-/snippets/...)3
Beware of NPM packages maintained by Brandon Nozaki Miller alias RIAEvangelist. He added IP-specific malware to node-ipc.
What is it with devs (not all, by any means!) who don't understand networks or basic computer operation? I'm not talking about anything complex, but things like the dev who asked if his IP address could be whitelisted so he could remote in from home. We asked what his public IP address is and he said 10.0.0.27.
Or the new dev who started and said her laptop camera didn't work and logged a ticket, only to be asked if she had the camera cover open or closed and said, "oh, that's what that lever is for."
Don't get me wrong - many devs and sysadmins and IT people of all fields are excellent. And there are some who are crap in every field. This is no rant about devs in general, just *these* crap devs that I can only throw my hands in the air and think, well, they scored ok in the SQL test.4
Alright... how the FUCK is an IP address considered personal data by GDPR????
Fucking boomers don't even know what an IP is. Guess what, every website you've ever been to has your IP! It's in your router, your fucking ISP's registry, and in every DNS server within 1000 miles of you!
Imagine thinking your IP gives up private information, god, just fuck me, I hate all of it, idiotic fools fumbling around with shit they don't understand.
...WKO making every developer's life a living nightmare because fucking GOOGLE FONTS stores a copy of your IP for their stupid analytics. You know what? Just don't use the internet either, that needs your IP too. In fact, don't pay taxes either, the tax office has a copy of your address, that's pretty personal information if you ask me! Just live in the woods and survive with the wolves.
I already know the future 'resolution' to this one - store fonts locally, resolve this dangerous "issue"... "waaaahhh fullStackClown! the site is slower now!!!"
...an infinite circle of clownshipness continues...
tune in next week as the world continues to approach it's circus fate!54
At the institute I did my PhD everyone had to take some role apart from research to keep the infrastructure running. My part was admin for the Linux workstations and supporting the admin of the calculation cluster we had (about 11 machines with 8 cores each... hot shit at the time).
At some point the university had some euros of budget left that had to be spent so the institute decided to buy a shiny new NAS system for the cluster.
I wasn't really involved with the stuff, I was just the replacement admin so everything was handled by the main admin.
A few months on and the cluster starts behaving ... weird. Huge CPU loads, lots of network traffic. No one really knows what's going on. At some point I discover a process on one of the compute nodes that apparently receives commands from an IRC server in the UK... OK code red, we've been hacked.
First thing we needed to find out was how they had broken in, so we looked at the logs of the compute nodes. There was nothing obvious, but the fact that each compute node had its own public IP address and was reachable from all over the world certainly didn't help.
A few hours of poking around not really knowing what I'm looking for, I resort to a TCPDUMP to find whether there is any actor on the network that I might have overlooked. And indeed I found an IP adress that I couldn't match with any of the machines.
Long story short: It was the new NAS box. Our main admin didn't care about the new box, because it was set up by an external company. The guy from the external company didn't care, because he thought he was working on a compute cluster that is sealed off behind some uber-restrictive firewall.
So our shiny new NAS system, filled to the brink with confidential research data, (and also as it turns out a lot of login credentials) was sitting there with its quaint little default config and a DHCP-assigned public IP adress, waiting for the next best rookie hacker to try U:admin/P:admin to take it over.
Looking back this could have gotten a lot worse and we were extremely lucky that these guys either didn't know what they had there or didn't care.
Crazy... Hm, that could qualify for a *lot*.
Craziest. Probably misusage or rather "brain damaged" knowledge about HTTP.
I've seen a lot of wild things when devs start poking standards, but the tip of the iceberg was someone trying to use UTF-8 in headers...
You might have guessed it - German umlauts. :(
Coz yeah. Fucktard loved writing everything in german, so why not write custom header names in german.
The fun thing is: It *can* work, though the usual sane thing is to keep it in ASCII range for the obvious reason that using UTF-8 (or ISO-8859-1, which is *not* ASCII) is a gamble you gonna loose.
The fun game was that after putting in a much needed load balancer between services for monitoring / scaling etc suddenly *something* seemed off.
It took me 2 days and a lot of Wireshark hoola hooping to find out why, cause the header was used for device detection aka wether it's a bot or not. Or in the german term the dev used: "Geräte-Art".
As the fallback was to assume a bot, but only rate limit based on IP, only few managed to achieve the necessary rate limit to get blocked.
So when I say *something* seemed off, I really mean a spooky kind of "sometimes IP blocked for seemingly no reason at all".
Fun stuff. The dev btw germanized everything. Untangling the code base was a lot of non fun. -.-6
So now Microsoft is suddenly deciding devices that "weren't" compatible are now perfectly compatible with Windows 11, and they're rolling this out in bunches at a time.
I still get "This device can not support Windows 11" but my coworkers are starting to see "Upgrade NOW!" and it's honestly gotten a bit sour seeing as I may be next. They're bypassing those who're editing the registry to stop this, too.
If I have to start diving into the deep ends of Windows and find out what IP Windows gets it's updates just to slap it into my HOSTS file, we're already in the apocalypse.
This upgrade is not bad for common people, but upon seeing that the Start menu GUI and taskbar got butchered horribly (I place my taskbar on top of the screen, Windows 11 doesn't allow for that) I myself absolutely want as much distance between me and that shit as possible.
In college, I've been hearing my fellow classmates having issues with Windows 11 left and right, including with how hard it is to get another browser to even work, to the Windows Store not even downloading Microsoft's own apps, to endless update loops, to the infamous "Update of Death"
Keep in mind, they got computers with better specs than mine, and they're having a worse experience. A lot of them just got refunds to the very last issue I just mentioned, all within August, day of purchase to day of return.
Microsoft, I am begging you for mercy, I'm so close to just getting up, finding out where you are, and blocking you from my network at all network and device levels.11
They've been in a meeting with some clients the whole morning.
12PM, time for me to go. Say Happy New Year and am on my way home.
12:20 Got home, took shirt off, got something to eat from the fridge.
12:22 Bit the first slice of pizza. Phone rings.
- "Yo' we wanted to show them app 2 but I can't log in."
+ "I left the laptop (and the whole dev environment) there, and there's no PC on in my house (and no dev environment whatsoever)."
- "Well check with your phone. [SIC] Tell me when you fix it."
12:32 I had turned my personal computer on; checked the problem was what I imagined (unpkg lib with no version defined on the link had a new major/non-retrocompatible version); grabbed an online FTP tool; remembered IP, user & password; edited the single line that caused the problem; and checked it worked. Calling back.
+ "It's fixed."
12:38 CEO sent me an image of the app not working, due to a known bug.
+ "That happens if you try to access app 1 having accessed app 2 and not logging off." (app 2 isn't being used / sold, as it's still in development) "Try logging off and logging in again from app 1."
- * radio silence *
+ * guess they could get in *
They had the whole freaking morning. 😠
I'm the hero CMMi's level one warns you about. But at what cost.
Happy early New Year's Eve everyone.2
Question: is it a red flag if I'm "not supposed to" blog about tips and tricks I've found at work (not even code level, just organization and general design patterns)? Reason given to me: "we need to be careful about due diligence and intellectual property for our investors to be satisfied". Am I working with idiots?9
Soooooo, why is it that so often 'security' just means bloody mindedly getting in your way for no reason?
Coz I fail to see how whitelisting a subnet of private IPs that are already only accessible through company VPN presents any kind of security risk, especially since the blocking software is literally only on our company laptops and can be easily bypassed by being on the VPN on *any other device*. But nooooooo, we have to go to the this other company our umbrella company owns (who by the way are making every dev at our company redundant in six months) and beg them to change each individual IP address every time we create a service.
Really does feel like security often means either 'our parent company doesn't understand security so we just need to go through the motions and *look* like we are doing things properly' or 'we just want to get in your way enough that we win in the who gets made redundant fight because you can't actually get any work done and we can'.
Bonus points: on the website for the blocking software they use, it literally recommends using Internet Explorer for everything. I'm surprised they haven't tried to enforce that on us as well.1
can't believe it but things actually have started to fall into place on their own, career-wise. feels unreal. need to work enough to afford a cottage with a cobblestone path & my life will be complete2
Good Morning Devs. Funny thing... Why was I dreaming about subnetting 😂. I literally remember in the dream about telling someone to count zeros. I woke up like 🤔🤔. Zeros...zeros. Was I just explaining to someone how to figure the total IP addresses and Hosts....🤭🤦♂️🤦♂️
what is the point of having massive HR departments if something as expected and frequent as university hiring can't go smoothly?
i managed to reach the interview round for a big 4 firm only for the interviewer to not show up for 4 hours from my time slot (i waited the entire time - took periodic screenshots for proof), HR to say "we'll reschedule your interview, this happened because of internal miscommunication" more than THREE months ago, and dip. until december they'd repeat the same. now they've ghosted. thanks, virtual hiring.
how is it the candidate's fault? found out this isn't rare by speaking to a few others from my network who i knew were interviewing for the same firm. for students whose lives can change completely based on the outcome of an opportunity that they came across due to sheer luck and could definitely make use of because of their hard work - this is so heartbreaking and demotivating.1
Today I wrote a python messenger bot which listens to only one command;
It then replies with its public IP address. I figured this would be the easiest hotfix until I fix my dynamic DNS client.
Now thinking of it I could also make an "update domain" command for doing the API call, and then link the two with a loop and minute delay. Marvelous.4
Back in https://devrant.com/rants/5492690 @Nihil75 referred to SlickVPN with a link, where you can buy a lifetime licence for $20. I thought - what the hell.. I don't need a public VPN rn, but for $20 for a lifetime lic - I'll take it, in case I'll ever need one.
I had some trouble signing up - the confirmation email never reached my inbox. So I got in touch with support. And they.... generated and send me a password in plain-text.
And there even isn't any nagging requirement to change the pass after I sign in for the first time!
IDK... As for a service claiming to be security-oriented, the first interaction already screams "INSECURE".
Well.. should still be OK for IP switching, to unlock Netflix content I guess. Don't need anything secure for that 🤷16
Junior Software Developer Job( $37k-$42k USD)
-1 year experience
- object oriented design and implementation
- management of relational and non-relational such as Oracle, PostGreSQL and Cassandra
- Lifecycle and Agile methods
- Familiarity with the Eclipse development environment and with tools such as Hibernate, JMS, ,TomCat/Gemini/Jetty, OSGi.
• UNIX skills, including Bash or other scripting language
• Experience installing and configuring software packages
• ActiveMQ troubleshooting/knowledge
• Experience in scientific data processing and analytical science in general
• Automated testing tools and procedures, including JUnit testing, Selenium, etc.
• Experience in interfacing with scientific instrumentation, potentially over IP networks
• Familiarity with modern web development, user interface and other ever-evolving front-end
technologies, such as React, TypeScript, Material, Jest, etc.
I am betting they don't get many people applying.9
every day my boss says he'll review the requirements for our product. every day he forgets to do so. every day he asks where the update for the next stage is. every day i remind him. every day he forg ---2
I want to access my Server from anywhere. Should i use something like noip.com (DynDNS)? Or is there a better way?11
I've seen a lot of buzz around the EU's GDPR and since I don't live there I'm wondering if it applies only if you store personal data and should it count if it's hashed for example?🤔
Let's say you hash a client's IP, it's not technically his data you've irreversibly transformed it into something else, like a computation.
For example let's say he provides you with a number and you multiply it by another and store the result, let's say 2 x 2 = 4, Is the 4 his data or yours?
Also I'm really interested in the general opinion of ranters about article 13.14
OK I need some help. I need to make sure I’m not losing my mind.
We are using an ERP which is hosted by another company. We are supposed to be able to access the data via a REST API. This works fine using Insomnia or Postman, but when I attempt to hit the API from my web application, CORS blocks the localhost origin.
I contacted the company’s technical team to request that they change the CORS configuration to allow localhost. They keep running me around in circles telling me that I don’t know what I’m talking about because localhost isn’t a DNS resolvable name and I’m doing something wrong and they don’t need to change any configuration.
They insist that if anything would need white listed, it would be my IP, not localhost.
I sent them screenshots and stack overflow posts and documentation links, showing them exactly what headers need to be set and where the configuration needs to be set in the ERP. They tell me I don’t know what I’m talking about.
They tell me that if I can hit the API from Postman, I can hit it from my browser.
Am I losing my mind? Have I fundamentally misunderstood CORS all these years? I’m sure I’m right. But I’m starting to feel like I’m crazy.19
When I found out that the server I use weirdly implements SSH login.
For some very odd reason (probably a historical one,) you have to access the web-app console and press a button TO GRANT SSH ACCESS TO THE F*<KING IP ADDRESS FROM WHICH I PRESSED THE BUTTON. The server blocks the wrong IP addresses outright. And only one active allowed IP at a time. This totally obliterates my plan to perform CD on this server. Why can't I just register public keys?
Then I learned several months later that they introduced a new server plan that *does* support the public-key registration. :facepalm:
I'm divided on whether to change my plan in exchange for a rather significant increase in the monthly cost.3
what are personal projects if not the daughters of hackathon solutions that never saw the light of day6
Dear Lord, please stop people from enforcing standards and bypassing them themselves.
Take kubernetes for example. Since v1.24 CRI has been announced as the standard, and kubernetes is shifting to live by it.
But it's not.
Yes, it's got the CRI spec defined and the unix://cri.sock used for that standardised communication. What nobody's telling you, is that that socket MUST be on the same runtime as the kube. I.e. you can't simply spin up a dockerd/containerd/cri-o server and share its CRI socket via CIFS/NFS/etc. Because kube-cp will assume that contained is running on the same host as cp and will try to access its services via localhost.
So effectively you feed the container via a socket to another machine, it spins up the container and that container tries to
- bind to your local machine's IP (not the one's the container is running on)
- access its dependencies via localhost:port, while they are actually running on your local machine (not the CRI host)
I HOPE this will change some day. And we'll have a clear cut between dependencies and dependents, separated by a single communications channel - a single unix socket. That'd be a solution I'd really enjoy working with. NOT the ip-port-connect-bind spaghetti we have now.4
need more experience for good entry-level jobs, need a good entry-level job for more experience. yay4
Could there be a "greater" GPL which explicitly declares that the constraint extends to use of the code as statistical data, such as in machine learning models?1
hey, so i have recently started learning about node js and express based backend development.
can you suggest some good github repositories that showcase real life backend systems which i can use as inspiration to learn about the tech?
like for eg, i want to create a general case solution for authentication and profile management : a piece of db+api end points + models to :
- authenticate user : login/signup , session expire, o auth 2 based login/signup, multi account login, role based access, forgot password , reset password, otp login , etc
- authorise user : jwt token authentication, ip whitelisting, ssl pinning , cors, certificate based authentication , etc (
- manage user : update user profile, delete user, map services , subscriptions and transactions to user , dynamic meta properties ( which can be added/removed for a single user and not exactly part of main user profile) , etc
followed by deployment and the assoc concepts involved : deployment, clusters, load balancers, sharding ,... etc
these are all the buzzwords that i have heard that goes into consideration when designing a secure authentication system for a particular large scale website like linkedin or youtube. am not even sure how many of these concepts would require actual codelines and how many would require something else.
so wanted inspiration from open source content to learn about it in depth, replicate and create new better stuff if possible .
apart from that, other backend architectures like video/images storage system, or just some server for movie, social media, blog website etc would also help.2
error "WORKGROUP:1d" could not be registered on the interface with IP address -
NetBT Error 4321
Since last couple of days, I have been facing this error:- The name "WORKGROUP :1d" could not be registered on the interface with IP
address 22.214.171.124. The computer with the IP address 126.96.36.199 did not allow the name to be claimed by this computer.
I think this only appeared after updating network drivers on Windows 10 PC.
So far not been able to figure out how to fix it, any suggestions ?3
which is the best cloud provider for a complete beginner (user/dev) in terms of community support, employer preference and user-friendliness?
i know that understanding the tech and concepts behind it matters more than getting familiarized with a specific platform, but i'm looking to build a more diverse profile and have noticed many positions asking for AWS/Azure experience.
since i'll be starting from scratch, any provider with easy-to-follow documentation, online help and certifications that don't leave you broke (would have to pay myself, earn very less as a student from a third-world country, parents/current employer can't support) would work.9
I'm wondering if I should buy a ~1800usd/year bare-metal server to put ALL my random websites/projects/app-backends, instead of buying VPSes here and there
But the thought "all eggs in 1 basket" is kinda scary -.-
And no, buying a static IP and hooking it to a home-server ain't happening (unfortunately), coz I move around a lot9
Let's say AWS assigned you an IP address , which was Pi to 7 digits... would you release it if you didn't need it anymore?12