How Wireshark works

TCP vs UDP

Started sniffing the packets on a public wifi hotspot. Found someone was reading TheHackerNews and got excited.😲 Later realised it was myself. 😯

A tcp packet walks in to a bar and says “I want a beer”, barman says “you want a beer?” and tcp packet says “yes, a beer” .

In high society, TCP is more welcome than UDP. At least it knows a proper handshake.

A bunch of TCP packets go into a bar, until it’s overcrowded. The next day, half as many go in.

A bunch of TCP packets walk into a bar. The bartender says, “Hang on just a second, I need to close the window.”

When I try to send SYNs to chicks, I don’t get any ACKs. Just FINs and RSTs.

IP packet with TTL=1 arrives at bar. Bartender: “Sorry, can’t let you leave…and you don’t get any beer either…” 

The worst part about token ring jokes is that if someone starts telling one while you are telling yours, all joking stops.

The great thing about TCP jokes is that you always get them.

The problem with TCP jokes is that people keep retelling them slower until you get them.

I would tell some UDP jokes too but I never know if anyone gets them

The best thing about UDP jokes is that I don’t care if you get them or not.

I had a funny UDP joke to tell, but I lost it somewhere...

The sad thing about IPv6 jokes is that almost no one understands them and no one is using them yet.

I tried to come up with an IPv4 joke, but the good ones were all already exhausted.

A DHCP packet walks into a bar and asks for a beer. Bartender says: “here, but I’ll need that back in an hour!

DHCP jokes only work when there is only one person telling them

The worst part of SSH jokes is that, even when they're not funny, you suck it up and just pretend they were anyway.

The problem with token ring jokes is you need to wait your turn to laugh

I’d make a joke about UDP, but I don’t know if anyone’s actually listening…

TCP Jedi: Master, how are you?
UDP Jedi: Good i am.

credit:@AlgoRythm

I was learning about packets and I was trying pirni (like Wireshark for iPhone) on my local network. I found a packet of my my roommate about a recipe of fancy a fancy dish

me: *enters the kitchen* Bro you need to see this I got this sick recipe of $fancyDish that I really wanna try

le roommate: THERES NO WAY ARE YOU FREAKING KINDING

I know its wrong to spy on peoples trafic but it was worth it hahaha

"no, there's isn't no lost packets."

Please send help. My eyes hurt.

!rant

I built my first android app, it sends TCP packets to my computer

neat

i just started learning about networking by sending a packet saying "emoji movie leaked footage" from my laptop to my desktop

for some reason, the fact that i can have two computers interact fills me with some kind of inexplicable joy

> pic related
This is what I've been putting up with on my personal machine for months.

tl;dr: Suggestions for a wlan card/adapter for Debian9? My current RealTek wnic is barely functional, and my replacement (a TPLink... something) is completely incompatible.

I don't need anything super fancy, though I would ofc love support for AC/AD if at all possible.

I don't care (too much) about price, since I'm only going to buy one and very likely won't replace it for years.

------

I'm running Debian9 and have a have a RealTek card. Even when it's not arbitrarily dropping packets like in the screenie, it randomly caches them for up to 90 seconds and dumps them hilariously out of order. I can't play games like that. I can barely even browse devRant. Steam goes offline about once every 30 seconds, and therefore spams all of my friends with online/offline notifications. Streaming "works" on good days. Git works fine, however, so most days I don't notice the connection issues.

And yes, I'm using a community-patched driver (rtl8188ce) that's supposed to fix some of RealTek's more major screwups and increase the transmit power by ~20x. The driver helps, but only a little.

I've done some reasearch on wlan linux support, but haven't found anything very reassuring. Mostly just forum posts saying things like "Intel cards usually work fine!" I don't want to gamble. I just want to buy a card that will work and be done with it. :(

Suggestions? Insight?

FUCK LINUX

now that I have your attention, and you’re probably angry, too, please, even if you don’t read this rant, never use code.org again. now, onto the rant…

god dammit, code.org sucks. I mean, anyone who created it or associates with it should, well, be considered a terrorist. they’re bombing students futures in computer science with false, useless, bullshit information. not to mention, their sponsors like bill gates, mark zuckerburg, and other rich asses, talk in a video about some boring ass shit that is hard to understand for anyone who doesn’t program, and not to mention, they use a fucking five dollar microphone. ear rape. even if you look at a textual version of it, then read the information on it, it’s practically useless because it's so terribly explained, and also useless. ironically enough, they focus on their animations more than their actual explinations, or their students for that matter. the fact that we had to encode a picture in binary, made me about 50% dumber, give or take a 0 or 1. then, we had to do it in hex, which wasn’t really much better, although more realistic I supposed. what's really the most depressing thing about this class is its application in the real world. I've learnt nothing whatsoever that will help me in the real world, or in computer science. I suppose there's two things that may be useful (that I already knew): hex, and that TCP doesn't lose packets. that's it. those two things. five seconds worth of knowledge from the first quarter of the year. the ideas just make me want to throw up. teaching the main ideas of computer science without actually teaching it? one of the teachers (probably a good one) enrolled her students in an online programming course just so they could understand, because the explanations are just so terrible. this is the only [high school] computer science course offered by code.org, and I signed up because it's an AP computer science class (tried to get into AP Java, the day I was supposed to take the test to get into an upper level class, I was told it didn't count as a tech credit). seriously, fuck code.org. it makes you dumber. their 'app lab' environment is pointless, just like everything else. the app lab is basically where you have a set of commands and have to make a dog bark() or a storm trooper miss() [and that's hell when they haven't introduced while loops yet]. the app lab is literally code.org going out of their way to make everything that their students are learning pointless in the real world. seriously, why can't we just use a <canvas> like an ACTUAL PROGRAMMER would do if they were to make a browser game, not use an app engine so slow it would be faster to update windows and android studio each time I run an 'app' in their 'environment'. their excuse is that the skills "transfer over" to the real world. BITCH! IF I DIDN'T KNOW JAVA, AND I WANTED TO MAKE A GAME IN JAVA, I'M NOT GOING TO LEARN PYTHON, THEN "TRANSFER" THE SKILLS I LEARNT, I'M GOING TO LEARN FUCKING JAVA. AND THAT GOES FOR EVER OTHER LANGUAGE, PROJECT, ETC.

I'm begging you code.org, stop, get help.

Hi hackers!
Just not sure about this one:
Is this true?
The closer i get to the router , the more packets i might be able to sniff.
And something else:
I might loose the traffic sent to the other APs while i'm close to one another.

Is there any way to capter all packets?
(I also have wired access to network but since the socket isolates the traffic let me know if there is any other method)

Thanks

Do you still store your music files locally?

I like owning my music files on my storage.

Disadvantages:
Storage space
Time spent organising metadata

Advantages:
Savour the quality
Accessible

I don't have an internet access all the time unless I'm home. I feel left behind seeing everyone just streaming music.

I love when employers reach out to you like desperate fuck boys on a dating app.

Tell me more about your “amazing” benefits package that’s indistinguishable from any other, your PTO that is as “unlimited” as my phone plan, and the empty mustard packets you acquired in series Z funding.

I’ve got all day to watch your dance play out its milky chance.

YAY.... fuck you Belkin!
Just found out my router is vulnerable to CVE-2017-14491.

For all you not following these issues, this one allows the attacker to intercept connections and perform a traffic hijack, or execute arbitrary code with unrestricted privileges as well as access all important and private data stored on the device aka: the devices login/password, the Wi-Fi passwords, and configuration data just by sending malformed DNS packets to the device.

Now this is all well and good, except Belkin haven't released firmware since 2013, which is strange... seeing how the damn thing was "NEW" out of the box in 2016.

Last time i buy a fucking router from these lousy assholes.

I broke into hotels WiFi. So here's the setup
They have a main router (TP-Link) which they use for official purposes then they connected the main router to a Microtik router for guests.
I got a glimpse of the software they use for accomodation, billing etc. It runs on php stack maybe MySQL too and some ip can't remember now. I can use wireshark to sniff the packets. Basically should I tell the office of this hotel about the security? Or just let it go.

P.S: Guys you know I'm visiting my gf but I've got some time for myself as she had something to do. So you know I'm not using my laptop when I'm with her.

Client:we want dynamic mapping of network and packet flow visualization like;packet tracer simulation
Us: is 2D visualization enough.
Client:yeah
*fast forward after first demo*
Client: now make it 3D with pipes representing cable.and packets flowing through them like water.
Me: fucccccck

Wanted to kick off my causine from the network (he keeps downloading and eats all the traffic) with my kali.
Guess what?
I forgot to bring my wifi adapter and my kali was installed on vm which means no chance to send deauth packets!

Allright! Maybe next time 😬

This is my bottom drawer. That's +150 packets of honey from the cafe downstairs. I've been slowly collecting them since I started working here. I'm leaving soon and thinking about leaving them so the next dev can have a pleasant surprise 😂

Our new IT support college (I've been the support for like almost 2 years into the company and then I moved onto another project) asked me about how to configure a printer over LAN. I explained him the whole procedure and after he asked me what does the gateway IP means, I explained him that it's a router, switch or another device that know how to forward packets on to other networks and gave him an example like 192.168.100.1 and told him that usually is the router's/switch IP address and is the same IP address as the static IP of the printer but with .1 at the end instead of the last number set. After that he asked me: "Like this? 192.168.100.25.1?"

Hey hackers! 😀
Does making a camera disconnected from the network using deauth packets , mean the camera won't send any data to the sarver/admin?
Does that make the camera useless and made the camera disabled?

One job I picked up was for an IoT Start Up. It was quite interesting work, reporting to the technical director, who was an electronics engineer, who was designing the hardware himself, they had a couple of firmware guys already, and just needed someone to take care of the software.
So they said they needed something in Azure that they could stream their data to and provide analytics for their clients. It had to be Azure, and it had to be Azure Native, and was to be Multi-client, as they had a deal with Microsoft to showcase how well Azure works in the IoT space at an exhibition/conference in 3 months time.
So I worked flat out for 3 months, on a whole variety of technology, from C++ to get the radio packets from their IoT chip, Python to run on the hub to take the data from the C++ and stream it to the cloud, Azure IoT Hubs in every continent to receive the data and store it an a Cosmos DB, and then Power BI analytics wrapped up in an Angular front end that the clients could log into.
Got it finished 2 days before the show, and they were so pleased I got flown business class to Singapore to be on the stand and talk to customers.
The first sign of trouble was when we arrived at the show to find we just had one of those little circular tables with two stools in the middle of the floor, about two feet across and no power.
No problem, I was able to sort that, swapping laptops in and out.
Microsoft were really happy with what we had, and couldn't believe I had thrown it all together in 3 months.
We picked up a potential customer for the system, a major Asian Telecoms company.
Then when we got home, the CEO swooped in. I had never met this guy before. Imagine one of the VC guys from Silicon Valley, or the CEO from the IT Crowd. You get the picture. Could talk the hind leg of a donkey, and real street smart, but no brains. He insisted on "taking it from here" and flew alone to strike the deal with the customer. Came back with an MOU in his pocket and said to me, their guys will be in touch with you.
Then I got a call. Can you send us the source code and tell us how what servers we have to run this on?
Um, its cloud native.
No, we can't use a cloud it has to be on our servers - your CEO told us that was no problem..
He hadn't even taken the trouble to find out what it was we had built, and what he was selling.

So my father has to deal with some vendors providing niche hardware and software solutions for a single department in the company.

Once the hardware finishes its work and transfers results to the managing PC, the PC has to upload those results to the server on the internet. The problem is that if no one's working with that setup for a few minutes the software in the PC can no longer communicate with the server.

Naturally, since idle time is in the equation, I thought of SO_KEEPALIVE (or whatever it's called in Windows). Wireshark confirms the absence of keepalive packets. However, the app doesn't seem to have any means to enable it... Hence the need to work with support guys.

One would expect the support to be professional, experts considering anything related to the app.

One would NOT expect to receive a call: "Hey, look, I was doing some googling on the internet... You might be right, enabling KA might help with the issue. We were discussing with our engineers and we tried to find some application that could enable KA on your computer. We couldn't find anything, but we believe that's the way to go. So give it a try and try to find some app on the internet that enables KA for our proprietary application". // everything in Lithuanian ofc.

I mean...seriously...?
I was startled to hear this suggestion. Since I expected them to be experts I assumed there's something IDK about Windows sockets -- could Windows enable KA globally, by-default? Did not find such a thing. Could Windows allow application A to control application B's socket options? Frankly, I'm too afraid to even look for this. I dislike Windows already. If this turned out to be true I'd probably become an anti-windows evangelist.

A puzzle, just for fun.

Two friends, (a)lice and (b)ob are communicating through a channel encrypted with random numbers XOR'd together, like so:

keyA = randint(1024, 1024**2)
keyB = randint(1024, 1024**2)

msg = randint(1024, 1024**2)

You, an interloper, have watched all these communications, siphoning the packets as they went.

When alice sends a message to bob's mailbox, she does it like so:

mailBoxB = keyA^msg

Bob's mailbox receives the mail automatically, and applies his own key, sending it back to alice's mailbox:

mailBoxA = keyB^mailBoxB

Next, Alice's mailbox notices the message, and automatically removes her key and sends it back to bob's mailbox. All of this, the first message, the second, and the third, happens in milliseconds, the back and forth.

mailBoxB2 = mailBoxA^keyA

Finally, bob's mailbox removes his key, and deposits the now unencrypted message in his box, for him to read in the morning:

mailBoxBFinal = mailBoxB2^keyB

As as a spy, you know the first packet sent to bob, had a value of 589505.

The packet bob sent back to alice, after applying his key, has a value of 326166

The message sent *back* to bob after alice removed *her* key, had a value of:
576941

What are the values of keyA, keyB, and what is the value of the msg?

Teenagers are like UDP packets...

you never really know when you might get one, but when you do, they most certainly dont care.

Me: I'm a hardcore dev lookin for trouble, can't flex on me, js on the streets and css in the sheets, watchoutttt

Also me: fuck how do I control F but like more

Also also me: I wonder how many ramen packets I'd have to eat to retire at 30

Either CloudFlare itself has decided to join the fun of attacking my DNS server, or somebody is just spoofing their IP in the UDP packets.
Crap, my ipset script is basically useless now, since the real source could be from anywhere :(

Any suggestions on what could I do to make this attack stop? It's not causing any real issues (at least for now), but it's still annoying as hell.
Get fucked, stupid skiddie who keeps manually changing the ip source in his script

After a failed brew.sh upgrade none of the nodejs packets were working anymore. I've spent the whole day googlling, reinstalling, cursing, asking for help, crying - without luck.

My boss got angry because he wanted that site yesterday.

Now i'm forced to clean install my mac tonight. I'm so tired.
Fuck!

So couple of days ago a competitor ISP rep. came to our door, describing that people in the neighbourhood reported outtages to them from the competitor (thats already questionable, why would somebody report that to another ISP, instead of the actual ISP? like we always do) and they said they did their magical lines or whatever and that the old line we use is faulty etc. - the internet was actually stable for a good while now finally, now today it cut off, I suspect they want to force contract changes by "accidentally" fucking with the shit somewhere for sure, fucking shit gargling goblins, I was a client of that competitor ISP for a good portion of my life and each time I moved they left me without internet for atleast 5 months and that only because I threatened action, their general service also isn't more stable, literally fucking throwing a paperplane with my packets is more reliable than their bullshit alternative, their offer also would cut 90% of options I have with the current one, leaving me without telephone, tv, mobile and more - since all that would have to be contracted seperately, ending in roughly 450% actual raise per month, I fucking hate ISPs.

Sensible question but I am asking it here!
As you know wifi packets can be sniffed using kali and a wifi adaptor.
I was wondering if the same thing can be done about car remote using raspberry pi ?
(I know theft is illegal everywhere and I'm not looking for trouble)

You see this fucker? Those are packets sent to Apple, what are those packets? The update of an app I am working on.

Makes me wonder why the fuck does upload disconnect out of a sudden when there is not a single issue in the network I'm connected to!

Apple get your shit together cuz an update process takes more time than developing the damn app!

At my last gig I was working at a small ISP and my boss was asking why our throughput went to shit every time he checked the router web ui. I told him it was because the web server on the router uses up a lot of CPU time, and that meant the router couldn't process as many packets since it uses that same CPU for well routing, nat, firewall rules etc...so it's probably best to use the CLI instead. Boss says, "YOU DON'T TELL ME WHAT TO DO!!!" And continues to destroy throughput by looking at the web ui.

TL;DR Boss yelled at me for telling him how things work. Yay.

On a previous job, my coworkers were jealous because I started going out for lunch some days of the week instead of staying with them at the office kitchen. So every time I went out, I came back to find some kind of small prank, and also a sign reading "Lunch Break Maffia Attacks Again". Once they made garlands by glueing/taping together a lot of sauce packets (mayonnaise, ketchup, and so on) in different patterns and decorated my whole box with them.

More emarassing than frustrating..But I was applying to a couple internal positions recently and decided to bring in a sample package to demonstrate some of what I had been working on in my current team. They seemed to like the example and the interview seemed to go well...A couple hours later one of the managers came by my cubicle and asked "is that the real password?" and pointed to a line in the code. Sure enough, I had left a plain text password in the script I had just handed out to 10 panelists at 2 interviews..proceeded to collect the packets back. In the future I'll be paying closer attention to what I include lol.

Still frustrated we keep the passwords in the script though >.> any suggestions for better storage of passwords and the like in Perl scripts?

Run dual boot Mac Catalina and Win 10. Got a bunch of Razer shit from wife for Bday... super stoked. Big mat, mouse, keyboard.

Works like a charm on Win.

Works for fuck all on Mac. The app to manage device is no longer supported.

Went waaay down the rabbit hole trying to sniff the packets that were being sent to the devices via USB to sync their colors and patterns.

Finally give up that route.

I have now built a VM for windows to run synergy... then a VM for Linux for Polychomatic because the keyboard is older and not supported by synergy.

And I found if I boot them both then quit them both the settings for the peripherals stay until the next reboot.

But JFC... I literally have to boot three operating systems to pull it off.

Talk about some gift of the magi shit... I was so happy with the gift and at this point it has wasted dozens of hours.

Fuck fucking Razer. Looks cool. Doesn’t work.

CVE-2019-3568
Description: A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of SRTCP packets sent to a target phone number.

NSO group even sell a spyware application based on that vulnerability to governments.

Listen!!!!! I'm going to the toilet with my phone!!! Listen!!!

Everyone is hyped on Flutter so I got a new idea.

I'm so distasted of Discord's official mobile clients, and this popped off my head:

Why not we implement it on Flutter?

After all, Flutter has these all nice things, and its certainly better than React Native.

I've laid out some of the things that needs to be done and one thing I've noted and remembered was:

- AFAIR According to b1nzy, former Discord employee, you're gonna need to know the WebRTC packets for Screenshare.

- VC is gonna be easy, and its probably the thing I can support without being too hacky.

hmu if you're up, I'm gonna call it Fluttercord, it won't be big or anything - just a experiment I want to show to Discord since they seem to struggle with the mobile clients

The lone wolf dies, but the packt survives.

Bought a new toy drone to play with at home, Ryze Yello. It boasts an Open SDK on the box and claims to be programmable. Awesome, I think, I end up buying and going home to get to work.

All is great using the app, I can fly the drone and the video feed is mostly usable. Now let's get in to the SDK and see what we have.

Docs say I've got a few basic commands, 8 directional flips, 6 directions of movement, rotate, takeoff, and land. Plus a config option to set the speed. After a bit of tinkering I discovered that only 3 commands actually work: takeoff, flip, land. The rest error out with no (currently) useful message.

A bit more searching online tells me that they borked the commands with a recent firmware update and are working on it as of 3 months ago.

I wish I knew more about firmware or deconstructing the wifi packets from the app so I could try to do something useful.

So many stupid things I wanted to do with an automated drone and I'm stuck waiting for them to fix their firmware to put functionality back into the device.

Today I have created a server application on Python Tornado which can forward TCP Packets directly to HTTP request queue without any intermediate caching.

Our remote IOT devices (microcontrollers with sensors attached) send sensor reading over TCP Socket to our server and all the connected web applications can show the data instantly using long polling and the above mentioned technique.

I have been working on IoT projects for last five years. After using MQTT in many of my projects I have realized that there is a huge learning curve for the beginners to understand and implement MQTT in their projects. The packet structure of MQTT is complex and MQTT packets are difficult to debug. Also customizing the open source MQTT brokers are also difficult for the beginners, and sometimes even for the experts.

To make IoT and Messaging simple, I am designing a new protocol which uses JSON packets for data exchange and is far less complex than MQTT. I am also developing an open source project which will contain a server (with load balancer support), a python client, a Javascript client and a python based load balancer. I hope this project will reduce the development time as the protocol is easy to understand and the open source code is fully modular & easy to customize.

This will be my very first contribution to the open source community. Wish me luck!

Every morning now you’ll see me at a Starbucks with a larger hot water pouring instant coffee packets into it

I’m not ashamed
Even if I was was rich I wouldn’t pay 15.00 for a fucking coffee lol

I call it a Starbucks workaround lol

So today I was messing with a side project and for context it’s a networking program.

So I’ve designed the programs packets and what each do. The final step is just constructing them and sending them, but wait some random error that I traced from the file path being wrong to the packet containing a files name but then I realized that the packet after the file name wasn’t sending and so I looked at the contents of the first packet and IT WAS SENDING BOTH CONTENTS IN ONE and I fucking can’t tell you how hung up on this I got because there was nothing wrong with any other packet in anyway, and if I commented the file name packet out the next one worked and vice versa and it was so fucking infuriating and out of desperation I thought “what if I just gave it time between sending both” AND IT FUCKING WORKED. ONE LITTLE FUCKING sleep(.5) FIXES THE PROBLEM THAT PLAGUED ME QUITE LITERALLY ALL DAY I CANT. IM PRETTY SURE ITS STILL NOT A GOOD SOLUTION BUT IM ROLLING WITH IT!

ARPAWOCKY

Twas brillig, and the Protocols
Did USER-SERVER in the wabe.
All mimsey was the FTP,
And the RJE outgrabe,

Beware the ARPANET, my son;
The bits that byte, the heads that scratch;
Beware the NCP, and shun
the frumious system patch,

He took his coding pad in hand;
Long time the Echo-plex he sought.
When his HOST-to-IMP began to limp
he stood a while in thought,

And while he stood, in uffish thought,
The ARPANET, with IMPish bent,
Sent packets through conditioned lines,
And checked them as they went,

One-two, one-two, and through and through
The IMP-to-IMP went ACK and NACK,
When the RFNM came, he said "I'm game",
And sent the answer back,

Then hast thou joined the ARPANET?
Oh come to me, my bankrupt boy!
Quick, call the NIC! Send RFCs!
He chortled in his joy.

Twas brillig, and the Protocols
Did USER-SERVER in the wabe.
All mimsey was the FTP,
And the RJE outgrabe.

D.L. COVILL
May 1973

Do you trust github/gitlab/bitbucket? If you self-host, do you trust your hosting? do you trust gitea? if you don't use gitea, do you trust git? do you trust the way you got your copy of git? do you trust your os, as it might have tampered with your git? did you read the code? do you trust your internet connection that might have changed some packets? do you trust your https implementation? did you examine the traffic? do you trust your traffic sniffing tool? if you use your own hardware, do you trust it? do you trust its CPU/bios? if it's risk-v, do you trust chinese vendors of your cpu? they might have put some backdoors there. do you trust your other hardware? okay, you have the money to make your own cpus. do you trust your employees? do you trust your silicon? do you trust the measuring equipment you used to check if your cpu is safe? do you trust the literature in the field? but did you verify it though? did you?

it's always who you trust. if you want to bake an apple pie from scratch, you must first create the universe.

so remember how I said I was sending TCP packets? screw that

UDP is life

I have been working on IoT projects for last five years. After using MQTT in many of my projects I have realized that there is a huge learning curve for the beginners to understand and implement MQTT in their projects. The packet structure of MQTT is complex and MQTT packets are difficult to debug. Also customizing the open source MQTT brokers are also difficult for the beginners, and sometimes even for the experts.

To make IoT and Messaging simple, I am designing a new protocol which uses JSON packets for data exchange and is far less complex than MQTT. I am also developing an open source project which will contain a server (with load balancer support), a python client, a Javascript client and a python based load balancer. I hope this project will reduce the development time as the protocol is easy to understand and the open source code is fully modular & easy to customize.

This will be my very first contribution to the open source community. Wish me luck!

In university, I got really into cryptography. I wrote software that was testing the entropy of lots and lots of HTTPS encrypted packets, for sites that also supported HTTP. Meant that I had a pretty good idea what the plaintext was, and the quality of the encryption algorithms used. In the end, I got into lots of trouble with my university because apparently what I was doing could be deemed 'dangerous'! Never felt more like a hacker in my life.

I just woke up from a lucid dream.
I could really control the situation, but it was fun telling my mate how IT stuff works LOL.
It's 3.22 am for me rn.
I fucking told my classmate how the proxy server at our school works. How the packets are being sent and received, how they get cached at the proxy server and through how many nodes they approximately get.

PS: I don't have a rubber ducky or whatever you call it to tell the problems of the program to it.

Ideas I've had over the years that could pan out and be useful:

SMS-DB: Stands for SMS-Data Burst. Used to allow those with low cell signal or no data plan to transfer data between a phone and some client via the standard SMS text space. Would be slow, but would act kinda like dial-up over SMS (as mobile lines are compressed on all service levels, even LTE, so traditional dial-up wouldn't work!) I have a general idea on how packets would be laid out, but that's about it so far...

everything2PNG: Allows one to transpose any file's data into a PNG with a 3 byte per pixel (full color RGB), which allows for a "compression" of sorts (about 91, 93% on preliminary tests) AND allowing further, more efficient compression of the resulting file. (Plus... it's just kinda cool to see files transposed as PNGs.) I actually have a simple transposer to go to PNG, but can't yet go back. Large files (around 600MB) use upwards of 4GB with efficient paging and other optimizations via NumPy so far, so it's not *viable* yet, but it's coming along nicely.

RPi-GPIO Interconnection Bus: A master/slave or round robin method to allow for Raspberry Pis to communicate using GPIO, which can help free up network bandwidth in RPi cloud computing clusters. At most, this'd allow for 4 bits used for pushing to the GPIO "bus", and 4 bits used for pulling from the "bus". 8 pins total are usually unused minimum, so either 3 or 4 pins for upload, 3 or 4 for download, and potentially 1 or 2 for commands, general non-data communication, etc. I made a version of this concept using Round Robin for a client, but it was horribly slow. (I also don't have distribution rights for the code, so i'm working from scratch.) Definitely doable.

I know this is not StackOverflow but is there a way to send TCP packets using JavaScript? I can't find a pretty solution. Why I can't find an API like "sockets" from Python to JavaScript?
Telnet API will be fine too.

Thanks!

God damn it Microsoft Teams is the shittiest piece of conferencing software ever. The UI is not consistent at all, calls are dropping like flies, and it does this bullshit thing where if packets are dropped it speeds up people's voices which is annoying as fuck. Echoes are everywhere and does no background filtering so people are on mute when they're talking. Fuck you Microsoft for bundling this pos down our throats.

Can someone example to me why do people use a VPN when not on public wifi? Like you are already at home with your own private network.

Like the moment you log into Facebook or Twitter or medium or to check your Gmail/outlook whatever, all you are doing is making is making it very clear to the host companies that you are inconsistently paranoid. Because all the sudden the person who's home address is in Seattle, work and home phone are in Seattle and all of their communication is done with people in Seattle. Has their web traffic location encrypted unknown.

Yeah your packets might be encrypted, but you are still spreading enough self identifying information by merely existing on the web.

At the end of day it seems more like a illusion of safety that these VPN sell. At the cost of a good dollar and slower internet speeds.

Unless you got some actual trade secrets and sensitive information, the f is the point for you to use one?

I'm currently migrating one of the companies services from technology A to an B based solution...
Today I had to remotly troubleshoot an error occuring somewhere on our client's backend application, that wans't enabling us to register any given webhook to our endpoints...
We finally gave in and looked up the data packets using a sniffer only to find that the only difference was that in the A technology project our staff ended up returning a Status Code plus the respective Reason Phrase, in our newest version we only send the HTTP Status Code... Guess who wasn't aware of HTTP 1.1 RFC consideres the Reason Phrase optional and an unecessary overhead??? God dammit... In simple terms...

Made me think and treat other people like disposable objects.
I also try to send as few packets to them as a result, u kno', to keeping the noise down.

Nah, just kidding.

But it has given me a solid foundation and framework for understanding for understanding so much in life..

Programming have also granted me something I continue enjoying and that I don't grow bored of quickly...

Particularly object oriented and event driven development have given me a pretty good ground to support me, on my personal endeavors onto noeroscience and understanding of the human mind..
Just for fun and curiosity tho :)

I almost looked for every possible source but is not satisfied or not found optimum way or path.

Actually i have to build a netflix clone (not exactly but a video on demand platform for one local client). The tech stack will be React at the frontend and DRF (Django Rest Framework) at the backend.

I know the node will match my purpose at best, but this needs to be done on DRF. How should I return the video, should I return it in bytes, packets and what can sample code look like, how frontend should fetch it. It will really help if you put your insight, in general. Thank you

I programmed an app I've been working on. It sends ICMP packets out...the message I programmed was "One ping to rule them all".

Oh yes, I am the Ping Master ;D

So any fellow Socket.io dev here know how to reduce the delay of my app? When I send an event it sometimes takes like 10 seconds to send the data to the server then to 2 other clients using io.sockets.emit. I'm on LAN where the server and the sender client is connected with a switch then the receiver is on wifi which is connected to the same switch so it's not far away.

Anyways it uses WEBSOCKETS so it should be fast right???!?! Is windows keeping my packets back? (poor packets :( they just wanna arrive :( )

When you commit a more readable README on GitHub to a non native English speaker sends you an email a day later asking for help why his self-signed certificate isn't trusted by his browser or his other computers.

The project he's working on is to sniff Wi-Fi packets that are encrypted through a MiTM attack. I've now stopped following this project and moved on.

Has anyone else had any stupid questions from debs which were about the key purpose of their project and how to go about it?

i am having a feeling that getting into software branch of it industry might be a wrong decision. in my college years, i got to explore different domains in tech :

1. software development : frontend tech , backed tech, mobile tech : somethings i and a million other people know

2. os and internal softwares : os, compilers, processor coding , chip manufacturing etc : don't know what this industry is known but we devs rarely go that deep in the hole

3. the network industry : computer networks , topologies, packets, data transfers etc. again not sure what this industry is but 4g/5g brands/ cisco seems to making a lot of money with this

4. cloud computing, devops, data etc : i guess some backend devs explore this domain too.

5. ai/ml data sciences/web3 : the new fad

6. biotech :?? don't know anything about this at all

7. graphics/management/qa : the other associated sisters of software dev. they are seeing a similar recession

8... ans so on.

i chose the 1st one in my undergrad as my career and now regretting this i am thinking of doing masters to fix my mistake and take a job in some other industry that is still blooming and has a future for sustaining a recession for atleast 30 years.

so any suggestions/experiences?

Part of my remote work is to have a daily call reporting in on what I have done yesterday and what I am about to today. My colleague calls me for it. She's hired as a tech support and is suddenly assigned to take note and report on my work activities to our boss. Several times, I caught her pretending to know what I'm talking about like with Puppet configurations, Firewall diagnosis packets, ActiveMQ, Regex, etc. Most of the time, I just let it go as its not my job to validate her knowledge on these different but many services. Just do the call, get the report in, carry on. How difficult was that?

Yesterday, our call was left sour because I somehow blew up. I think I've reached my patience with this woman's assumptions to how these services work. Now I feel guilty for yelling at a lady but goddamn she stoopid for fibbing through my ear. Somebody help! What do I do?

If I report to our boss about her technical incompetence (politely), she might get sacked. She's a good tech support as long as she still has her trusty manuals by her, she can fix specific problems. But when it comes to unknown tech to her, she assumed she knew.

If I tell her about her weaknesses, however constructive I can get and as politely as I can get, all the while complimenting something about her, showing her how to improve herself, maybe she'll do better not to ask silly questions like buying a Puppet certificate? At least getting rid of ignorance would definitely help but not sure how she would take it. The worst thing I would imagine is her backfiring and yelling at me and then we ended up fighting.

If I kept quiet and tuck it all into a can, it will eventually implode as we go on.

This is not about her gender. I don't see her as a woman. I see her as a tech support engineer who should know her stuff.

I’ve got a really good TCP/UDP joke to tell you, but I don’t know if you’ll get it

Last day working for my current employer. New job from Monday.

Even pinging Google loses 3/4 of packets. New Cisco router.

Yeah, I'm glad it's my last day here.

Hooray! voice is now working on localhost! Now to find a high latency, low reliability connection to stress-test the thing. Do you reckon sending the packets 3 times to echo.websocket.org is unreliable enough?

Just out of curiosity...
Is there a way to prevent a DDoS attack using settings in the Router? Like, changing the DNS Port to maybe 54 because most people just spam 53 with random packets?

headaches..

Likely a very simple algorithm to get these packets processed in the right order, got plenty of metadata that should help, but since yesterday I am wrapping my head around it and cannot figure out a sane way...

I send an error message that we suspect to be caused by our VPN implementation to our VPN lib developer and asked if he knows anything about it. His answer was: yes some packets seem to be unauthorized.
thats it, no "reasons could be:" or "try this to see if it helps" or "make sure you are doing that"
I fucking hate those kinds of lazy shitheads

So I was wondering why my tcpdump was displaying more than 10 packets per second between my local dev machine and my server, until I realized that I was running tcpdump in the ssh session...

Don't tell dev rant. But I'm going use ADB to sniff their SQL packets and make a neral network with all the posts for that damn stress ball

Does CPU (WAN) receive and send packets too? With what?

Routers connect multiple networks and stuff together. The router at your house connects your devices to a bigger network.

1. Are these "routers" the same
2. Would my router carry packets intended for someone else, you know maybe just shuttling them across or something?
3. If so can I spy on them with my router potentially ?

Trying to make a nodejs backend is pure hell. It doesn't contain much builtin functionality in the first place and so you are forced to get a sea of smaller packages to make something that should be already baked in to happen. Momentjs and dayjs has thought nodejs devs nothing about the fact node runtime must not be as restrained as a browser js runtime. Now we are getting temporal api in browser js runtime and hopefully we can finally handle timezone hell without going insane. But this highlights the issue with node. Why wait for it to be included in js standard to finally be a thing. develop it beforehand. why are you beholden to Ecma standard. They write standards for web browser not node backend for god sake.

Also, authentication shouldn't be that complicated. I shouldn't be forced to create my own auth. In laravel scaffolding is already there and is asking you to get it going. In nodejs you have to get jwt working. I understand that you can get such scaffolding online with git clone but why? why express doesn't provide buildtin functions for authentication? Why for gods sake, you "npm install bcrypt"? I have to hash my own password before hand. I mean, realistically speaking nodejs is builtin with cryptography libraries. Hashmap literally uses hashing. Why can't it be builtin. I supposed any API needed auth. Instead I have to sign and verfiy my token and create middlewares for the job of making sure routes are protected.

I like the concept of bidirectional communication of node and the ugly thing, it's not impressive. any goddamn programming language used for web dev should realistically sustain two-way communication. It just a question of scaling, but if you have a backend that leverages usockets you can never go wrong. Because it's written in c. Just keep server running and sending data packets and responding to them, and don't finalize request and clean up after you serve it just keep waiting for new event.

Anyway, I hope out of this confused mess we call nodejs backend comes clean solutions just like Laravel came to clean the mess that was PHP backend back then.

Express is overrated by the way, and mongodb feels like a really ludicrous idea. we now need graphql in goddamn backend because of mongodb and it's cousins of nosql databases.

I did something really stupid and I need some help.

I was trying to use rvict1 to catch packets from my iPhone. I was high when I was doing it and my Mac asked for some type of permission. I pressed OK by accident instead of using the option to modify my system preferences to continue the process. Now I can’t get that systems preference window to show again. Anybody got any tips?

“Well sir I know for real that you spend 100s of dollars in our store a week on food and the like but I’m a fucking bitch that needs to tell you that if you get one of millions of cups we dispense and millions we throw away that has hot water but no bean carcasses with a little of the milk that is going to spoil and some sugar packets that I’ll have to charge you ! No real reason because 99% of my customers by my overpriced Java beans which you do as well most of the last decade and well the rest of our supplies likely have an element of waste and spoilage that you’re just deducting from etc and who cares anyway really but yeah I thought I’d be a bitch today, maybe I want fucked in my face so I can claim by willingly being a bitch I should be able to hurt my intended victim class which I already did just because you punished me for doing so in the past and saying things just to add some more stress go your day?”

HAND OVER THE FUCKING CUP OF HOT WATER INFANTILE MONSTER DRONE GIVING CUSTOMERS EXCUSES TO BE DICKS TO ANYONE IN A LOW PAID POSITION WHO IS MAKING MONEY THAT SHOULD BE OURS !

Can some1 explain me this in detail, please? c:

I've been working on an extremely intermittent bug for the past week in my project that occurs during a stress testing between a PC based server and an embedded device that share files. When the crash happens, I analyze what happened by looking at a file as a result of an fwrite, look at a diff of it, look at the packets etc. For the past 3 days I had been lead to believe there was a bug in stdio.h's fwrite due to a file being written looking like it was truncated in the diff, but the packets telling a different story (X bytes sent to be written, on the result I report X bytes written). Today I noticed that there was either a bug or an issue in the diffing algorithm that led me to think my code was the issue. I spent 3 fucking days trying to figure why fwrite was truncating and lieing about its result when my diff tool was the culprit. FML.