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Search - "netcat"
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My wife: Oh, hacking is so cool. Can you show me?
Me: Sure. So there I needed to upload the php file, while my netcat was sitting here in the terminal waiting for incoming...
My wife: Boring, BORING.
Me: ....
(At least my 5yr son appreciates the terminal more than she: typing 'sl' or watching star wars in ASCII art.)5 -
That's actually something that happened fairly recently.. just that I didn't have the energy left at the time to write it down. That, or I got my ass too drunk to properly write anything.. not sure actually.
So on paper I'm unemployed, but I do spend some time still on pretty much voluntary work for HackingVision, along with a handful of other people.
At the time, we were just doing the usual chit-chat in the admin channel, me still sick in my bed (actually that means that I wasn't drunk but really tired for once.. amazing!) and catching up to what happened, but unable to do any useful work in this sick state. So, tablet, typing on glass, right. I didn't have any keyboard attached at the time.
One of the staff members (a wanketeer from India) apparently had an assignment in a few hours for which he needed to write a server application in Java. Now, performance issues aside, I figured.. well I've got quite a bit of experience with servers, as well as some with client-server protocols. So I got thinking.. mail servers, way too overengineered. Web servers.. well that could work, I've done some basic netcat webservers that just sent an HTTP 200 OK and the file, those worked fine.. although super basic of course. And then there's IRC, which I've actually talked to an InspIRCd server through telnet before (which by the way is pretty much the only thing that telnet is still useful for, something that was never its purpose, lol) and realized that that protocol is actually quite easy to develop around. That's why I like it so much over modern chat protocols like XMPP, MQTT and whatnot. So I recommended that he'd write a little IRC server in Java. Or even just a chatbot like I attempted to at the time, considering that that's - with a stretch of course - a sort-of server too.
His fucking response however, so goddamn fucking infuriating. "If the protocol is so easy, then please write me down how to implement it in Java."
Essentially do his fucking work for him. I don't know Java, but as a fucking HackingVision admin, YOU SHOULD FUCKING KNOW THAT HACKERS CAN'T STAND LAZY CUNTS THAT CAN'T EVEN BE ASSED TO GOOGLE SHIT!!! If I wanted to deal with cunts like that, I'd have opened the page inbox with all its Fb h4xx0ring questions, not the fucking admin chat!
And type it on a goddamn fucking piece of glass, while fucking sick?! Get your ass fucked by a bobs and vegana horny fuck from the untouchable caste, because that's where you fucking belong for expecting THAT from me, you fucking bhenchod.
But at least I didn't get my ass enraged like that to say that to him in the admin chat. Although that probably wouldn't have been a bad thing, to get his feet right back on the ground again.1 -
EoS1: This is the continuation of my previous rant, "The Ballad of The Six Witchers and The Undocumented Java Tool". Catch the first part here: https://devrant.com/rants/5009817/...
The Undocumented Java Tool, created by Those Who Came Before to fight the great battles of the past, is a swift beast. It reaches systems unknown and impacts many processes, unbeknownst even to said processes' masters. All from within it's lair, a foggy Windows Server swamp of moldy data streams and boggy flows.
One of The Six Witchers, the Wild One, scouted ahead to map the input and output data streams of the Unmapped Data Swamp. Accompanied only by his animal familiars, NetCat and WireShark.
Two others, bold and adventurous, raised their decompiling blades against the Undocumented Java Tool beast itself, to uncover it's data processing secrets.
Another of the witchers, of dark complexion and smooth speak, followed the data upstream to find where the fuck the limited excel sheets that feeds The Beast comes from, since it's handlers only know that "every other day a new one appears on this shared active directory location". WTF do people often have NPC-levels of unawareness about their own fucking jobs?!?!
The other witchers left to tend to the Burn-Rate Bonfire, for The Sprint is dark and full of terrors, and some bigwigs always manage to shoehorn their whims/unrelated stories into a otherwise lean sprint.
At the dawn of the new year, the witchers reconvened. "The Beast breathes a currency conversion API" - said The Wild One - "And it's claws and fangs strike mostly at two independent JIRA clusters, sometimes upserting issues. It uses a company-deprecated API to send emails. We're in deep shit."
"I've found The Source of Fucking Excel Sheets" - said the smooth witcher - "It is The Temple of Cash-Flow, where the priests weave the Tapestry of Transactions. Our Fucking Excel Sheets are but a snapshot of the latest updates on the balance of some billing accounts. I spoke with one of the priestesses, and she told me that The Oracle (DB) would be able to provide us with The Data directly, if we were to learn the way of the ODBC and the Query"
"We stroke at the beast" - said the bold and adventurous witchers, now deserving of the bragging rights to be called The Butchers of Jarfile - "It is actually fewer than twenty classes and modules. Most are API-drivers. And less than 40% of the code is ever even fucking used! We found fucking JIRA API tokens and URIs hard-coded. And it is all synchronous and monolithic - no wonder it takes almost 20 hours to run a single fucking excel sheet".
Together, the witchers figured out that each new billing account were morphed by The Beast into a new JIRA issue, if none was open yet for it. Transactions were used to update the outstanding balance on the issues regarding the billing accounts. The currency conversion API was used too often, and it's purpose was only to give a rough estimate of the total balance in each Jira issue in USD, since each issue could have transactions in several currencies. The Beast would consume the Excel sheet, do some cryptic transformations on it, and for each resulting line access the currency API and upsert a JIRA issue. The secrets of those transformations were still hidden from the witchers. When and why would The Beast send emails, was still a mistery.
As the Witchers Council approached an end and all were armed with knowledge and information, they decided on the next steps.
The Wild Witcher, known in every tavern in the land and by the sea, would create a connector to The Red Port of Redis, where every currency conversion is already updated by other processes and can be quickly retrieved inside the VPC. The Greenhorn Witcher is to follow him and build an offline process to update balances in JIRA issues.
The Butchers of Jarfile were to build The Juggler, an automation that should be able to receive a parquet file with an insertion plan and asynchronously update the JIRA API with scores of concurrent requests.
The Smooth Witcher, proud of his new lead, was to build The Oracle Watch, an order that would guard the Oracle (DB) at the Temple of Cash-Flow and report every qualifying transaction to parquet files in AWS S3. The Data would then be pushed to cross The Event Bridge into The Cluster of Sparks and Storms.
This Witcher Who Writes is to ride the Elephant of Hadoop into The Cluster of Sparks an Storms, to weave the signs of Map and Reduce and with speed and precision transform The Data into The Insertion Plan.
However, how exactly is The Data to be transformed is not yet known.
Will the Witchers be able to build The Data's New Path? Will they figure out the mysterious transformation? Will they discover the Undocumented Java Tool's secrets on notifying customers and aggregating data?
This story is still afoot. Only the future will tell, and I will keep you posted.6 -
I just finished writing an Integer Java Virtual Machine in C.
Being able to write an echo server in IJVM Assembly, connect to it through netcat and see it run on my machine is legitimately one of the most satisfying moments I've had so far in programming. -
oh, I have a few mini-projects I'm proud of. Most of them are just handy utilities easing my BAU Dev/PerfEng/Ops life.
- bthread - multithreading for bash scripts: https://gitlab.com/netikras/bthread
- /dev/rant - a devRant client/device for Linux: https://gitlab.com/netikras/...
- JDBCUtil - a command-line utility to connect to any DB and run arbitrary queries using a JDBC driver: https://gitlab.com/netikras/...
- KubiCon - KuberneterInContainer - does what it says: runs kubernetes inside a container. Makes it super simple to define and extend k8s clusters in simple Dockerfiles: https://gitlab.com/netikras/KubICon
- ws2http - a stateful proxy server simplifying testing websockets - allows you to communicate with websockets using simple HTTP (think: curl, postman or even netcat (nc)): https://gitlab.com/netikras/ws2http -
Since my ISP doesn't allow port forwards on that port, does anyone want to open their port 445 (if not otherwise occupied by Microsoft-DS) and have netcat reply an empty string or so any request (such as an empty string) sent over TCP (or has anyone already done so)? It would help me out a lot with testing out some networks full port range (since portquiz.net's hoster blocks that port) and would take close to no bandwidth for you.6
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Weekly Rant-
My best office prank by far was at my high school. First, I bought a USB rubber ducky and programmed it to backdoor my friends school computer with netcat and a batch file that ran in the background so that I could connect to his computer any time inconspicuously. The next day, I injected his computer with the drive when he went to turn in some papers.
You should've seen the look on his face when his computer started having conversations with the teacher. -
As promissed.
Day #1 on THE other project. Nothing fancy, just setting up my dev env. Got a decent pc with all the required network permissions. And this time I got w10 [last year I was working there on w7 pc via rdp from another w7 laptop. Dont ask...]
of course no localadmin rights to set shit up. Downloaded all the installs, found someone who has admin rights to run them. I even managed to get admin powershell!
Ran all installers, enabled long paths support, env vars, tweak here, tweak there,... Installed git bash to at least have a taste of shell. Decided to try out wsl. Enabled the feature, didnt reboot right away.
Rebooted. 2xclick on ubuntu setup and I get an error claiming wsl is not ebabled. Wtf? Did I do it wrong? I see bash command is there now so I must have done it right. After some googling I found out that even though I can enable wsl, it doesnt work on my version of windows. It's too okd they say. Yeah, tx MS, that's very intuitive and user friendly!
Allright, my hopes to habe a decent sub-os died. Git bash it is :( but I miss tmux soooo much. Then I came across smth that caught my eye. Msys2 it's called. Apparently it's based on cygwin and has a pacman package manager! ´pacman -S tmux´ -- hippee-ka-yay motherfuckers! It's not the best terminal emulation, but it works quite allright and it has tmux. And netcat!
Banished to mouseclickerland still managed to find a good enough shell. Yayy!
So there it is. My first day's ups and downs, disappointments and discoveries.
If you know a better shell I could set up on w10, please, share