Funny how the "change is good" popup comes up while I'm trying Ubuntu out

So, my boss just overwrote an entire disk with a dd command. Now no of the virtual machines are accessible.

This is going to be a great day.........

"We don't need that network profile for this interface anymore."

*Removes*

*40+ virtual machines lose network connectivity*

"Huh. That shouldn't have happened...Well, I gotta catch my flight. Machoog, you got this?"

*Panic!*

Discovered the beauty of virtual machines

!rant

My laptop feels complete again. I'm back up to 32gb RAM after being down to 8 for a few months...

Now i can have all the virtual machines open without worrying about maxing out my system... time to go break things while I learn what they do! 😄

Four semesters in. As a class we’ve learned Java, SQL, HTML/CSS, JavaScript, C++, C#, and a small amount of PHP

We’ve built databases, websites, apps for phone and desktop, and we’ve toyed with game development in unity

We’ve used multiple IDE’s with differing pros and cons, virtual machines, server development stacks (XAMPP), data structures, and we’ve used multiple sorting algorithms to learn their differences.

Some things on here are immensely more difficult than others. If at 4 semesters in you still don’t know how to AT LEAST google your issues for 10 minutes or even READ THE DAMN BOOK, then please don’t bother asking TA’s for help we have our own assignments to do and can’t afford spend an hour working with you to fix your code while you just ignore our suggestions

Four semesters in you should know where to find help online and if that doesn’t work, how to ask for and accept help. If you can’t then I’m sorry. I’m going to spend my time helping others, before I waste my time trying to help you

A lot of engineering fads go in circle.

Architecture in the 80s: Mainframe and clients.

Architecture in the 90s: Software systems connected by an ESB.

Architecture in the 2000s: Big central service and everyone connects to it for everything

Architecture in the 2010s: Decentralized microservices that communicate with queues.

Current: RabbitMQ and Kafka.

... Can't we just go back to the 90s?

I hate fads.
I hate when I have to get some data, and it's scattered on 20 different servers, and to load a fucking account page, a convoluted network of 40 apps have to be activated, some in PHP, others in JS, others on Java, that are developed by different teams, connected to different tiny ass DBs, all on huge clusters of tiny ass virtual machines that get 30% load at peak hours, 90% of which comes from serializing and parsing messages. 40 people maintaining this nightmare, that could've been just 7 people making a small monolithic system that easily handles this workload on a 4-core server with 32GB of RAM.
Tripple it, put it behind a load balancer, proper DB replication (use fucking CockroachDB if you really want survivability), and you've got zero downtime at a fraction of the cost.

Just because something's cool now, doesn't mean that everybody has to blindly follow it for fucks sake!

Same rant goes for functional vs OOP and all that crap. Going blindly with any of these is just a stupid fad, and the main reason why companies need refactoring of legacy code.

Between containers, cluster managers and virtual machines we've lost track of where our code even is.

at the begin of the year I started working as contractor for a company which development environment was a shit machine in the basement...shared by all developers via ssh, that's right, no local development.
Who the hell needs virtual machines, Vagrant, Docker?
You break something while working? It's broken for everybody.

A.D. 2017

The other developers seemed fine with it.

Man I love VM's!

I'm on a very tight deadline and my laptop died this morning and needs a reformat, usually this would be a very dire situation... Luckily I use a virtual machine for my dev env so I just remoted into a pc at my office using my phone, launched an instance of my vm and forwarded a public IP to it.

I'm currently working on my rasberry pi while machines installing linux. The only noticeable difference so far is that I only have enough ram to keep open around 5 browser tabs. :-D

Majority of the hacking tutorials:

Tutor : Now we are going to set up two virtual machines to practice our hacking.

Me : Yes finally some useful practicals

Tutor : First one is Metasploitable

Me : What? This OS literally has its name derived from exploitable! How would it be useful in real life! But its ok, there is one more OS for practice, i am sure that one will be better.

Tutor : And the second one is "Windows XP"

Me : *MOTHERFUCKER!*

P.S.: I understand its not the case for all tutorial and it is somewhat necessary, but still it gets me a little.

Seriously? Microsoft does not support ed25519 SSH keys in neither Azure DevOps nor the actual Azure Virtual Machines? Like seriously? No there has to be a joke. There just ain't no way
It has been in OpenSSH since 2013.
2013.
We're in 2023, if you've forgotten.
10 years ago, OpenSSH implemented this standard.

Did you know what they tell you when you enter your valid Ed25519 SSH key into their system?
Did you know they tell you that "Your SSH key is invalid"?
WHAT DO YOU MEAN INVALID???!?! IT WORKS EVERYWHERE ELSE JUST FINE!!! YOU'RE THE ONE THAT HAS NO FUCKING BRAINS!!!

Composure.

I am calm, I am calm.

I have always. Been. CALM!

There is no one more calm than me....

I guess RSA it is then.
A second SSH key, just for Microsoft.

How to delete 16 days of commits 101 🤯:

First of all, me and my class (computer science in college) were working on a project for around 12 weeks, our “client” is one of our teacher and we literally just finished today to work on the project since our degree terminal projects are starting next week.

So now there's this guy in our class who kinda has the reputation to be stuborn and clumsy; he’s going to do his assigned task, commit, push it and put his task into QA (which is just peer evaluation and testing nothing really complex) and then when we try his functionality and finds out it isn’t working, we tell him and the only thing he always answers is : “but it works on my machine” and then we will need to explicitly ask him to be sure he has all the latest changes (database and codebase) and to see if it still works on his side since it doesn’t work for anyone else.

This actually happened quite a lot in these 12 weeks and you can definitely imagine that of course it would definitely not happen again today when we thought we were finally done with this project…

So another teacher gave us an assignment to create a development environment for our big project so we could try out Docker instead of virtual machines, he made GitHub Classroom repos with a minified version of our project and up to this point everything is fine and clear. That is until 3 hours ago, that our little clumsy friend somehow pushed his Docker related files on the main project, maybe he was trying his Docker setup on the real project no big deal you know EXCEPT IF HE HADN’T NOT PULLED SINCE 16 DAYS 😤.

He was doing maintenance on another project so I can maybe understand but gosh how did he not see the big warning of Git that he wasn’t up to date with master ? And yes we only have a master branch bear with us but hopefully we were able to create a new branch with the up to date project and then merge master.

A couple of us had a gut feeling that this guy would do something that would break the whole project right before we ended, turns out we were right 😅

My journey with IT learnings, Some of Major learning changes. The following are the years in which I start learning given technology or domain.

1993 Birth
1999 #HTML
2001 #PHP + Foxpro
2001 #Haskell language
2002 BASIC
2002 #8088 Assembly
2003 #Linux
2007 Visual #Foxpro
2009 #C Language
2010 #Python
2011 #JAVA for mobile #development
2015 Virtual Machines
2016 Networking
2018 #Blockchain
2019 #Elixir & Phoenix
2019 #DevOps

Well, here’s my computer setup. It doesn’t look the best, but my HP Z600 Workstation is more than enough for gaming and working with virtual machines.

About slightly more than a year ago I started volunteering at the local general students committee. They desperately searched for someone playing the role of both political head of division as well as the system administrator, for around half a year before I took the job.

When I started the data center was mostly abandoned with most of the computational power and resources just laying around unused. They already ran some kvm-hosts with around 6 virtual machines, including a cloud service, internally used shared storage, a user directory and also 10 workstations and a WiFi-Network. Everything except one virtual machine ran on GNU/Linux-systems and was built on open source technology. The administration was done through shared passwords, bash-scripts and instructions in an extensive MediaWiki instance.

My introduction into this whole eco-system was basically this:
"Ever did something with linux before? Here you have the logins - have fun. Oh, and please don't break stuff. Thank you!"

Since I had only managed a small personal server before and learned stuff about networking, it-sec and administration only from courses in university I quickly shaped a small team eager to build great things which would bring in the knowledge necessary to create something awesome. We had a lot of fun diving into modern technologies, discussing the future of this infrastructure and simply try out and fail hard while implementing those ideas.

Today, a year and a half later, we look at around 40 virtual machines spiced with a lot of magic. We host several internal and external services like cloud, chat, ticket-system, websites, blog, notepad, DNS, DHCP, VPN, firewall, confluence, freifunk (free network mesh), ubuntu mirror etc. Everything is managed through a central puppet-configuration infrastructure. Changes in configuration are deployed in minutes across all servers. We utilize docker for application deployment and gitlab for code management. We provide incremental, distributed backups, a central database and a distributed network across the campus. We created a desktop workstation environment based on Ubuntu Server for deployment on bare-metal machines through the foreman project. Almost everything free and open source.

The whole system now is easily configurable, allows updating, maintenance and deployment of old and new services. We reached our main goal for this year which was the creation of a documented environment which is maintainable by one administrator.

Although we did this in our free-time without any payment it was a great year with a lot of experience which pays off now.

So I spent over 200 hours recovering a raid array because the the business that hired the company I work for tried to do all the work in house. Now I'm to the point of trying to quote a new server setup to the company because the last one got hit by lightning. My quote $8000-$20000 in just hardware alone. If im going to do this I want to do it right. Twin servers running xenserver holding virtual machines with a high-quality Nas to hold the virtual machine. Then have the vm's being imaged to two off site backup devices in two different locations and a cloud backup. My boss comes in after me talks to the guy in charge and tells him all that is needed is one server holding all storage on it just like the last server that died and one off-site backup for $4500. How stupid can someone be who has been doing this for over 20 years? Oh btw the software running on this server will be 911 dispatch, jail records and the database for fine payments. The sheriff making the final call me and my boss are meeting with him tomorrow if my boss tries to undercut me I'm going to tell them both that if the same shit happens next time they can spend the time themselves trying to recover stuff because I done the over 200 hours in just short of two weeks.

Virtual box.

I recently had to code sign an app for ios without having a mac at the office or an iphone to test it on. Thank god for virtual machines though

I'm a bit confused as to why people are re-imaging their machines from one OS to another?

Use Vagrant (or Docker) and just set up an OS in a Virtual Machine? Then if you break it you just destroy it and provision it again. You don't destroy your whole machine.

When you finally have some servers racked and configured in VMware to build a lab environment for the team....

But to access VMware you need to run citrix receiver from a mac to launch Chrome on Windows to access the VMware ESX Web UI but only on the HTML5 version as Flash doesn't work....

Now to spin up virtual machines that you can only upload via ova images but not locally cos that tries to show you the Windows citrix local files....

Do I even dare ask if I can access this via API so I can actually provision this with Ansible like I want too?!

I am amazed at human stupidity.

I always enjoyed the idea of DevOps: to use virtual machines and constant integration in order to avoid errors and free the developers of hard-to-setup environments and somehow-it-works compilations.

I am amazed how [company I used to work for] managed to turn this into a nightmare.

Just imagine: silent forests, the smell of flowers, no developer trust to the point your devs can’t either make docker environments cause reasons nor they can access your actual machines programmatically because they are filthy peasants, forcing them to do everything manually: every deployment will be a frustrating editing process which takes up to an hour, but here lies the trick... it will still have continuous integration... or better: every feature will be deployed as if it was a release.

The true peak of illumination:
Turning a tool into a disease.

Take a sip of tea, manager... you deserve it.

Just thought about this job because I keep being tempted to just start my own company. The more I think about it, the less being employed makes sense, given my end goal.

So, most (if not all) modern operating systems sync their time with some trusted source (like the Internet) right? Windows included. All is well.

When your Windows 10 computers are joined to a domain, it thence relies on your local neighborhood domain controller to tell it the time. Sounds good, since domain controllers Never Go Down, right? All is well.

Services are all being cloud-ified, which means virtual machines. The domain controllers have suffered this fate, but everything is smooth and buttery. All is well.

Wait, the VM's clock is running slow. Uh oh....
Wait, isn't it supposed to ask the Internet?
Well, no. Domain Controllers decide that They Know All, and stop asking the Internet for its opinion.

This causes problems, but only ever so slowly, and it took me noticing all the computers seemed to be ten minutes slow compared to my phone (and well everyone else's phone) to realize what had happened.

Thanks, Windows...

I've spent so many years not coding, I could never get over the initial hump, which was definitely a mistake. Mistakes are fine, we all make them. The best thing is to learn from them. On the plus side I've learnt firewalls, Web hosting. Windows domains, Azure cloud, virtual machines etc etc, skills which are hopefully very useful for Dev to have. I look forward to joining the ranks of skilled developers. If you are interested in development but are afraid to take the leap. Just go for it, start to learn and play with it. My recommendation for anyone looking for a starting point is a Udemy course called "The Complete ASP.NET MVC 5 course". I'm not affiliated in any way or advertising it. I just think it's brilliant and you get to the fun stuff really quick. You will start with the basics of getting and setting up visual studio. Also. If anyone could recommend other very good courses they know of I would appreciate it

So recently I've been taught how to make Virtual Machines in school and I did made an Ubuntu vm because it was loaded on a disk my teacher gave to me. And I loved it, it was my first time with Linux and I was so impressed, so I put some more versions of Linux on a flash drive to copy and I'm going to try them all out! The other versions I'm going to try out are Mint, Fedora, Manjaro, and Kali!

I am using Manjaro as the main OS on my computer. But I have an original Windows 10 license, as well as an Office 2013.

I want/need to have them installed on PC, as I need to use it sometimes.

But if I install my Windows 10, it will certainly destroy my grub and I know I will have a hard time to make it work again.

Would it be a good idea to install them on a virtual PC? I know it would not be good with games, but the only game I have is GTA IV (that I am not even sure if it still works on Windows 10).

Thanks!

!rant
Maybe it's because I'm drunk but the extra 8gb Ram I just added to my laptop really makes it faster. Everything seems a little bit faster and I can now power up 2-3 virtual machines and IDE etc. without problems 😍

What keeps me from loosing my sanity every day? A mentor who taught me the value of "nuke and pave" automation. Just nuked the entire Azure resource group, including virtual networks, subnets, virtual machines, vpn connections, the whole nine yards. Redeploy takes about 5 minutes.

Monday morning, we were told by our teacher that we had one week to create a clustered system with virtual machines , handled with 2 hypervisors, and the whole thing must come with high availability

These are the kind of stuff that make me doubt about becoming devops later, 3 days in and I'm only starting to get what we're doing, but I'm such a massive dead weight for the rest of my group 😵😵

I hate Microsoft.

I got my new laptop from work today. Pretty nice, 4 cores, 8 threads, an SSD.
It also came with the upgrade to Windows 10.

I work quite a lot on virtual machines, so my work laptop ends being an email and RDP client.

So, I connect to my usual VM, open up vscode and begin working.
But I quickly realize, that for some reason I can't do the Ctrl+Alt+DownArrow combination anymore, even though it worked on my old win7 machine.

Turns out that these keys are reserved, and I have absolutely no way to work around this.
I have to stop using a keyboard shortcut, that I use every few minutes.

Thanks for nothing.

Itd be cool if we could get something like Schenzen.Io going, but you build the chips from the gates up
Maybe package them into modular units, and connect those at a higher level or abstraction, ad infinitum.

Then add access to virtual LCD output, and other peripherals, or even map output to real hardware, essentially letting you build near bare-metal virtual machines.

Dont know about that last part, but the closest I've seen to the rest is circuit simulator and again, schenzen.

On the machine learning front I figured out I need about ten times as many training samples as validation samples, or vice versa. I'll have to check my notes. Explains why I could get training loss below 2.11

Also, I'm looking at grouping digits, and trying different representations. I'm looking at the hidden variables for primorials to see what that reveals. And I realized because of the amount of configurations and training that I want to do, even a personally built cloud isnt going to be sufficient. I'm gonna have to rent someone else's hardware and run it "in duh cloud."

Any good providers that are ridiculously upfront for beginners to get started with? Namely something cheapish.

So far I've been pretty lucky... except for the code some of my professors at uni used in their assignments. A couple of them had this horrid habit of giving you a horribly-written, out-of-date (we're talking these chuckle heads used the same code for years on end and wondered why it didn't work on new versions of Java), messy source file with "fill in the blanks" sections like it was some kind of Java Mad Libs book. One of them had an entire jarchive of data structures we were required to use that he'd written in the '90s and NEVER UPDATED. Another one had a script he'd written for his own specialized assembly macro preprocessor that he'd been using without update for who even knows how long. Now, we were using one of those goofy virtual machines with its own simplified assembly language, and we were on the fourth version of the program. This guy'd written his macro processor in Java for the second version, never updated his Java source, only provided a barely-working .bat script for running it, even though the department's official preference was a *nix environment, and implemented this horrid "pretty-printer" that had a regrettable little habit of eating code. You heard that right. You'd run build.bat and it'd expand your macros then send it over to the pretty-printer which would very infrequently just replace the existing program file with an empty file. When we brought it to his attention, he goes "...huh. never happened to me." and proceeded to use the very same set of programs for the next three semesters, even when the assembly simulator was updated again. I heard wails of anguish from the poor sad souls that came after me as their macro processor created program files with deprecated operations, their pretty printer printed out beautiful, perfectly-organized empty files, and the professor responded to every second of a student begging for an updated version with "...huh. never happened to me." I never saw a single bug reported to either of those professors even acknowledged, let alone fixed. Some of the Java Mad Libs were the same ones they'd started using when they first switched the curriculum from Ada to Java. Thankfully after my first year I escaped into the bliss of the next three years, which were full of *nix and C and beauty.

A certain company:

1) Forbids to run its proprietary operating system on hardware that is not produced by the company itself (BTW sold extremely overpriced). Virtual machines included.

2) Makes laptops with wrong and unusable keyboard layouts.

3) Does not sell any kind of servers that can be mounted on a rack.

Why should any open source project waste resources and time to support it? They should just be left alone with their crappy software and their overpriced hardware.

That moment when you buy a machine, install xenserver on it and start playing modern AAA titles @ ultra in virtual machines

Just finished upgrading my company to windows 10 and latest Mac OS. The company opened a new bank account and the required hardware works ONLY on Windows 7 and no virtual machines...

Ok I'm totally lost...
here is my list
Alienware m15/17
Lenovo Legion Y740
Lenovo Legion Y540
Or just get a desktop ?

Usages: Gaming (not that hardcore)
Virtual Machines
Deep Learning

Folks

I need your input on the following

how important do you think having high core count in CPUs in your daily workflow?

I'm planning on buying a new ryzen 5000 processor, while I am going to game the hell out of it I'm also planning to run wsl2, a ton of chrome tabs, maybe have multiple IDEs for developing random stuff, maybe some virtual machines for some experimentations, some docker containers for some selfhosted software and lastly open demanding games while having everything else open.

Will a 6 core 5600x be enough? or do you think investing in a 5900x will be worth it down the line? (lets say for the next 7 years)

Assume that the GPU will handle the games im going to play and the RAM is going to be 32gb for now

Finally I finished the exams, now I have to write my thesis. An agency who wants remain anonymous at the moment told my supervisor to choose a student who will works out on the ransomware argument. The relator was a little bit scared about consequences but I'm pressing to write a controlled ransomware in a closed network brtween virtual machines. What qualities a good ransomware should has?
Mutable structure to avoid antivirus detection? Good exploits and vulnerability scanners to make itself viral? The payload should stay in the code or should be downloaded from a server? I need some reference on analysis of vx codes, any help?

So I had this discussion yesterday..
Virtual Machines on a SSD: Yes or no? Good or Evil?

What's your opinion?

I keep the OS partition of my VMs on my SSD, because they are unusable otherwise. At least if it is a Windows vm.

Came into work this week after the holidays and was an email from azure saying unless we redeploy our virtual machines before next week they will do it at midnight utc - which happens to be mid-day here.

No problem I just email our client and schedule a time Friday afternoon where the servers will be unavailable and I'll do it then.

Today (Thursday) azure email and say they are going to just reboot our servers now. I check and the application is not working. Clients start phoning in saying they cant access the system..

Fuck you, linux modules!! I know tinkering with you was going to be dangerous, but I've already spent 4 hours just rebuilding virtual machines from every screwup.

I personally love the architecture of Linux, it tickles my fancy and it's super elegant... But fuck you!

Had a talk yesterday about crypto and blockchain... Including NFTs... In that you could use real money like now to buy digital goods except you can transfer them and show them off anywhere online.

And well I'm suddenly wait... NFT + VR = Virtual worlds like Sword Art Online and Accel World....

Now we just need neurolink to work and then we'll have VR pods.... Like in the Matrix....

And then robots and machines will rule the world...

Oh fuck...

Hello guys, Did you know how to build a PHP development enviroment for a low spec laptop?
Well, low spec laptop I mean:
CPU: AMD E2 quad Core 1,5
RAM:4 GB
I switched from w10 because it was so laggy, Im currently using Xubuntu
I tested virtual machines bit also it was so laggy too
PD: have a good day :)

What Hardware specs should I focus on when buying a server which runs virtual machines using ProxMox or XenServer?

The Turing Test, a concept introduced by Alan Turing in 1950, has been a foundation concept for evaluating a machine's ability to exhibit human-like intelligence. But as we edge closer to the singularity—the point where artificial intelligence surpasses human intelligence—a new, perhaps unsettling question comes to the fore: Are we humans ready for the Turing Test's inverse? Unlike Turing's original proposition where machines strive to become indistinguishable from humans, the Inverse Turing Test ponders whether the complex, multi-dimensional realities generated by AI can be rendered palatable or even comprehensible to human cognition. This discourse goes beyond mere philosophical debate; it directly impacts the future trajectory of human-machine symbiosis.

Artificial intelligence has been advancing at an exponential pace, far outstripping Moore's Law. From Generative Adversarial Networks (GANs) that create life-like images to quantum computing that solve problems unfathomable to classical computers, the AI universe is a sprawling expanse of complexity. What's more compelling is that these machine-constructed worlds aren't confined to academic circles. They permeate every facet of our lives—be it medicine, finance, or even social dynamics. And so, an existential conundrum arises: Will there come a point where these AI-created outputs become so labyrinthine that they are beyond the cognitive reach of the average human?

The Human-AI Cognitive Disconnection

As we look closer into the interplay between humans and AI-created realities, the phenomenon of cognitive disconnection becomes increasingly salient, perhaps even a bit uncomfortable. This disconnection is not confined to esoteric, high-level computational processes; it's pervasive in our everyday life. Take, for instance, the experience of driving a car. Most people can operate a vehicle without understanding the intricacies of its internal combustion engine, transmission mechanics, or even its embedded software. Similarly, when boarding an airplane, passengers trust that they'll arrive at their destination safely, yet most have little to no understanding of aerodynamics, jet propulsion, or air traffic control systems. In both scenarios, individuals navigate a reality facilitated by complex systems they don't fully understand. Simply put, we just enjoy the ride.

However, this is emblematic of a larger issue—the uncritical trust we place in machines and algorithms, often without understanding the implications or mechanics. Imagine if, in the future, these systems become exponentially more complex, driven by AI algorithms that even experts struggle to comprehend. Where does that leave the average individual? In such a future, not only are we passengers in cars or planes, but we also become passengers in a reality steered by artificial intelligence—a reality we may neither fully grasp nor control. This raises serious questions about agency, autonomy, and oversight, especially as AI technologies continue to weave themselves into the fabric of our existence.

The Illusion of Reality

To adequately explore the intricate issue of human-AI cognitive disconnection, let's journey through the corridors of metaphysics and epistemology, where the concept of reality itself is under scrutiny. Humans have always been limited by their biological faculties—our senses can only perceive a sliver of the electromagnetic spectrum, our ears can hear only a fraction of the vibrations in the air, and our cognitive powers are constrained by the limitations of our neural architecture. In this context, what we term "reality" is in essence a constructed narrative, meticulously assembled by our senses and brain as a way to make sense of the world around us. Philosophers have argued that our perception of reality is akin to a "user interface," evolved to guide us through the complexities of the world, rather than to reveal its ultimate nature. But now, we find ourselves in a new (contrived) techno-reality.

Artificial intelligence brings forth the potential for a new layer of reality, one that is stitched together not by biological neurons but by algorithms and silicon chips. As AI starts to create complex simulations, predictive models, or even whole virtual worlds, one has to ask: Are these AI-constructed realities an extension of the "grand illusion" that we're already living in? Or do they represent a departure, an entirely new plane of existence that demands its own set of sensory and cognitive tools for comprehension? The metaphorical veil between humans and the universe has historically been made of biological fabric, so to speak.