Join devRant
Do all the things like
++ or -- rants, post your own rants, comment on others' rants and build your customized dev avatar
Sign Up
Pipeless API
From the creators of devRant, Pipeless lets you power real-time personalized recommendations and activity feeds using a simple API
Learn More
Search - "virtualization"
-
!rant
Has anyone been paying attention to what Google's been up to? Seriously!
1) Fuchsia. An entire OS built from the ground up to replace Linux and run on thin microcontrollers that Linux would bog down — has GNU compilers & Dart support baked in.
2) Flutter. It's like React Native but with Dart and more components available. Super Alpha, but there's "Flutter Gallery" to see examples.
3) Escher. A GPU-renderer that coincidentally focuses on features that Material UI needs, used with Fuchsia. I can't find screenshots anywhere; unfortunately I tore down my Fuchsia box before trying this out. Be sure to tag me in a screenshot if you get this working!
4) Progressive Web Apps (aka Progress Web APKs). Chrome has an experimental feature to turn Web Apps into hybrid native apps. There's a whole set of documentation for converting and creating apps.
And enough about Google, Microsoft actually had a really cool announcement as well! (hush hush, it's really exciting for once, trust me)...
Qualcomm and Microsoft teamed up to run the full desktop version of Windows 10 on a Snapdragon 820. They go so far as to show off the latest version of x86 dekstop Photoshop with no modifications running with excellent performance. They've announced full support for the upcoming Snapdragon 835, which will be a beast compared to the 820! This is all done by virtualization and interop libraries/runtimes, similar to how Wine runs Windows apps on Linux (but much better compatibility and more runtime complete).
Lastly, (go easy guys, I know how much some of you love Apple) I keep hearing of Apple's top talent going to Tesla. I'm really looking forward to the Tesla Roof and Model 3. It's about time someone pushed for cheap lithium cells for the home (typical AGM just doesn't last) and made panels look attractive!
Tech is exciting, isn't it!?38 -
Reinstalled my dedicated server yesterday.
Then you suddenly get errors saying that KVM isn't found.
Searching my ass off for hours because I damn well enabled Intel virtualization in the bios!
Double checked after a few hours.
THE FUCKER TURNED ITSELF OFF OR SOMETHING FOR THE SECOND TIME?! WELL, THERE GOES A FEW FUCKING HOURS 😡23 -
System engineer to Director: We can clone the machines for extra capacity.
Director in meeting later that day: It's ok, they can make clowns of the machines.3 -
And the title of hackerman goes to he who is now running macOS Sierra inside of VMWare on Windows 😂18
-
TIL that TI has no goddamn chill
Texas Instruments released the TI-83+ calculator model in 1996. The Z80 was not at all stock and has the following features:
- 3 access levels (priveleged kernel, kernel, user)
- Locking Flash (R/O when locked for most pages, some pages protected and unreadable as well, only unlockable from protected Flash pages by reading a certain order of bits then setting a port)
- Locking hardware ports (lock state always the same as flash)
- Customizable execution whitelist range (via locked ports)
- Configurable hardware (Flash/RAM size changeable in software via locked ports, max RAM is 8MB which is fucking mental compared to the 64k in the thing)
- Userland virtualization (always-on)
- Reset on violation of security model
- Multithreading
- Software-overclockable CPU
- Hardware MD5 and cert handling
TI made a calculator in 1996 with security features PCs wouldn't see until like 2010 what the *actual* fuck10 -
Hello devRant, a question for you.
I'm looking to redisign/setup my server 'infrastructure'.
It'll exist out of:
7 vps's (6+gb ram/500gb+/100mbs up/down per vps)
2 dedicated servers running as virtualization servers. (16gb/4tb/1gbit up/down and another one but let's leave that one out for now because it's gonna take a shit ton of time to solve that clusterfuck)
One server will function as an entry point for all websites I run, multiple database servers and multiple backup ones.
Any advices/tips/ideas?
Just a very serious hobby thing :)18 -
So probably about a decade ago at this point I was working for free for a friend's start-up hosting company. He had rented out a high-end server in some data center and sold out virtualized chunks to clients.
This is back when you had only a few options for running virtual servers, but the market was taking off like a bat out of hell. In our case, we used User-Mode Linux (UML).
UML is essentially a kernel hack that lets you run the kernel in user space. That alone helps keep things separate or jailed. I'm pretty sure some of you can shed more light on it, but that's as I understood it at the time and I wasn't too shabby at hacking the kernel when we'd have driver issues.
Anyway, one of the ways my friend would on-board someone was to generate a new disk image file, mount it, and then chroot to that mount path. He'd basically use a stock image to do this and then wipe it out before putting it live.
I'm not sure exactly what he was doing at the time, but I got a panicked message on New Years Day saying that he had deleted everything. By everything, he had done an rm -fr /home as root on what he had thought was the root of a drive image.
It wasn't an image. It was the host server.
In the stoke of a single command, all user data was lost. We were pretty much screwed, but I have a knack for not giving up - so I spent a ton of time investigating linux file recovery.
Fun fact about UML - since the kernel runs in user space as a regular ol' process, anything it opens is attached to that process. I had noticed that while the files were "gone", I could still see disk usage. I ended up finding the images attached to their file pointers associated with each running kernel - and thankfully all customers were running at the time.
The next part was crazy, and I still think is crazy. I don't remember the command, but I had to essentially copy the image from the referenced path into a new image file, then shutdown the kernel and power it back on from the new image. We had configs all set aside, so that was easy. When it finally worked I was floored.
Rinse and repeat, I managed to drag every last missing bit out of /proc - with the only side effect being that all MySQL databases needed to be cleaned up.3 -
PORTFOLIO INFLATION
when every junior is writing algorithms, the next step up, the only way to keep up is writing apps. When every junior is writing apps, the next leg up is writing an entire SN.
Eventually junior full stack devs are writing microservice streaming cloud backend content delivery optimized social networks wrapped in virtualization with load balancing, proper CI, public accessible analytics apis, written in custom webaseembly compiled scripting backend utilizing both the latest graphql and every single feature of postgres, while also being a web site builder, an in browser app, mobile optimized, designed to transmogrify your asset pipelines linearflow functional-oriented modular rust cratified turbencabulator while cooking your turducken with CPU cycles, diffusing your gpt, and finetunning your llama 69 trillion parameter AI model to jerk you off all at the same time.
And then the title "wizard" becomes a reality as the void of meaning in our lives occupied by the anxiety of trying to reduce the fear of rejection in job hunting, is subsumed by the brief accidental glance into the cthulian madness-inducing yawning abyss of the future which is all the rest of our lives we have to endure existing for until at last sweet sweet death consumes us and we go to annihilation never having to configure one more framework or devops deploy of another virtual environment.
And it dawns on us that we no longer develop or write code at all. No, everything has become a "service" in this new hellscape future. We slowly come to the realization that every job is really just Costco greeter, or eventually going to be reduced to something equivalent, all human creativity, free will and emotions now taken care of by the automation while we manage the human aspects, like sardines pushing against one another not realizing their doom has been sealed along with the airless can they have been packed into, to be suffocated by circumstance and a system designed to reduce everything to a competition of metrics designed by the devil, if the metrics were misery", and "torture", while we ourselves are driven by this ratfuck wheel to turn endlessly toward social cannibalism, like rats eating their babies, but for the amusement of wallstreet corporate welfare whores who couldnt turn a dime if it wasnt already stolen.
And on our gravestones, those immortal words are carved, by the last person who gave up the ghost, the last whose soul wasnt yey shovelled onto the coal fires driving the content machine consuming the world:
Welcome to costco. I love you.12 -
Client : We have performance issues on <this> page.
US : Testing with their data on : Xeon : All good, Core i7 : all good, Core i5 : all good, A smartphone : all good, core i5 UM version from 5 years ago (You know, 1.8Ghz, 2 cores, not 4) : all good.
US : Could you share your screen and show us ?
Client : Sure ! Shares his screen. Chrome is already opened. Refreshes the page, after 15 seconds, chrome : Would you like to stop script on this page ?”
US with mic on mute : “WTF?! It cannot happen here. It’s only a list of about 500 rows!”.
US : “Hello, could you open a tasks manager?”
Client : “ Sure, but I need to do it through here”
Some random VID interface popping up. Opens tasks manager with a beautiful “48 vCPUs detected”.
I have no idea how their virtualization is settled, but it seems to be messed up. Tomorrow going to be fun. I have a call at 9am to explain them their problem. Their IT will hate me forever.
If anyone has tips on Chrome through virtualization, please tell me.
EDIT : Yes 48. Not 4-8. It's not an error6 -
Was just recalling one of the worst calls I ever got in IT...
Many years ago we had a single rack for all of our servers, network and storage (pre virtualization too!).
We had a new security system installed in the building and the facilities manager let the guy into the server room to run all the sensor cables in because that is where they wanted their panel... the guy was too lazy to get up on the roof and in the attic repeatedly so after he checked it out he went around every where and drilled a hole straight up where he wanted the sensor wire to go... well the server room was not under an attic space... when he found he had drilled through to the out side... HE FILLED IT WITH EXPANDING FOAM.... the membrane on the roof was damaged... that night it rained... I got a call at 4 am that systems were acting funky and I went in... when I opened the door it was literally raining through the corners of the drop ceiling onto the rack... An excellent DR plan saved our asses but the situation cost the vendor's insurance company $30k in dead equipment and another $10k in emergency labor. Good thing for him we had so little equipment in that room back in.
Moral of the story... always have a good DR plan... you never know when it will rain in the server room.... :)3 -
Stop asking which Linux distro is best. Seriously there is no "best" one. Arch is best FOR ME. Debian or Fedora might be your cup of tea. But I have great news for you, they are all FREE and there is free virtualization software you can try them on. Stop asking a stupid question that only gets opinionated answers and flame wars and go try them for yourself.
Also, while I'm on the topic. Ubuntu, Ubuntu Mate, Ubuntu XFCE etc. are all the same distro, they just have a different DE (desktop environment for you noobs). It's like on Monday I wear a suit but Tuesday I wear shorts and a tee shirt, it's still me, I'm just dressed differently.8 -
In my day off I was eager to try overclocking in my pc and this is how it went:
- Fucked up overclocking parameters for cpu and ram speed.
- BIOS is broken, had to take out gpu to do a reset taking out the bios battery.
- BIOS is up again, default values loaded, bla bla
- Did not try to fuck off anymoar with overclocking, just kept playing star wars and went to sleep safe and sound like a baby.
- Gotta work now. docker does not start, closes itself after tried to start, docker panic, I panic, tried to uninstall, tried to update. nothing works
- Then I remember bios default values leaves virtualization off. enables it again, docker still not working. I panic again, restarted pc like 10 times between disabling/enabling hyper-v in windows.
- Docker dies. not gonna change my overclock options again. silly me 🤦♂️9 -
Today I learned that bugs in Proxmox aren't bugs because they're not *exactly* within the scope of le fancy PVE web UI.
Today I also learned that running Samba on the PVE host is stupid. No real reasons but let's assume security. Well it's decently secured, has good passwords, and the killer is.. it isn't even fucking accessible to the internet! And even if it was, privilege separation is no secret to me.
But clearly I'm an idiot for even thinking about running Samba on PVE. Well guess what?! PVE is aimed at sysadmins that want to deploy a virtualization server. It's not a big stretch to imagine that those sysadmins might be halfway competent and want to run external services on the PVE host, is it.
But apparently it is. I'm an idiot and bugs aren't bugs anymore. Go fucking kill yourself, motherfuckers in the ##proxmox IRC channel. I really hope that your servers will go down on Friday when you're on call. Fucking cunts 😑
Edit: IRC chatlog @ https://clbin.com/nU9Fu13 -
Finally dumped windows from my tower/gaming rig!!!
I'm now running Ubuntu Budgie and Windows 10 inside a qemu/kvm VM with gpu passthrough. That way I have almost-native performance and no additional setup effort for installing games.7 -
I once agreed to maintain and develop an application used in a different section of the school to keep inventory and make sure everything is where it is supposed to be.
At first there was enthusiasm, together with 2 of my classmates we agreed and git clone-d the .NET application that now graduated students built and maintained for the past few years. What could go wrong right?!
It became clear that the original students that worked on it followed an older curriculum, meaning they still got taught .NET instead of the core variant that we get now, not only that but it also seemed that they either did not fully grasp the Clean/Onion architecture or didn't get it in class since there were infrastructure components in the 'Domain' project of the solution. Think of 2 DBContexts in the domain model, yep.
One of us bailed in the first week, the other one and I felt bad for the people using the app so we went on and tried to work on the first bugs that were described in a document. One of these bugs was 'whenever I filter on something in the list, everybody gets to see that filter on their screen instead of only me'. Woah that's weird! Let's see how they put that together!
Oh god, they are using a _static_ variable to store filters, no wonder that it doesn't work properly. Ever heard of sessions?!
Second bug: Sometimes people can't create an account when we sign them up from the admin panel. Alright that is weird, let's figure that one out! Wait a second it seems to work in development? What's this about.
Oh wait I can't create an account on production either? Oh that's weird, wait a second... Why do I have to put my e-mail in a form that was sent to me through e-mail? Why is my address not filled in already? OOH, if someone types in the wrong e-mail address (which is easy since our school has 4 variants of the same f*cking e-mail address) it won't work since it can't recognize the user! Brilliant! Remove e-mail input box and make a token/queryparam determine the user account.
Ah that seems good, it's a mess but it seems a tiny bit better now, great! We're making progress and some sweet buck.
Next bug, trillions of 50x errors on random pages, that's a weird one.
Hm everything works in development, that's odd. Is the production data corrupted?
DID I MENTION that in order to get into the system in development we have to load in a f*cking production database backup ON OUR DEVELOPMENT MACHINE and then ask one of the users' password to login to it and create an account for ourselves? Seeding? What's that, right?!
Anyway, back to bug fixing. I e-mail the the people responsible for the app and get a production admin account, oh I also can't ssh into it because of policies so I have to do everything over e-mail and figure out what's causing the errors. I somehow also wonder if they have any kind of virtualization in place, giving students a VM to do that stuff in doesn't seem so weird does it ? Even with school policies?
Oh btw, 'deploying' means sending a .zip file to a guy in another building and telling him how to configure it, apparently this resulted in a missing folder that the application needed to work and couldn't make on its own. This after 2 weeks of e-mailing back and forth.
After 3 months i quit out of despair and sadness, and due to the fact that I just couldn't do it anymore. I separated everything into logical subprojects and let the last guy handle it, he was OK with that and understood why I left.
Luckily, around that time I already had an actual job at a software development company :)3 -
Fuck i hate myself right now...
> Wanted to install minikube on my homeserver(which doesn't have a graphics card in it)
> Error: Virtualization is not enabled
> Take the server out of my rack, opens my desktop pc, takes the gpu out, puts in it my server, and then goes into bios.
> Find that virtualization is enabled.
> Realize that I'm running a dozen docker containers on a daily basis from my server, so OF FREAKING COURSE virtualization is enabled...
So after all that, I figure out that I should probably just google my issue, which leads to me find out, it's just an issue with virtualbox, and simply running 'minikube config set vm-driver none', it fixes it, and I am now running minikube.............
Took half an hour of work, to realize that I'm a complete fucking idiot, who shouldn't be allowed near a computer2 -
I think I've been doing too much Android programming in the last three days.
Had a lucid dream last night where I couldn't wake up until I figured out how to set up an inter-thread latch that would allow me to process through a shit ton of data points in parallel without duplication or skipping errors in the most efficient manner (effectively no blocking). We're talking several hundred lines of code. Slept 14 hours last night, I heard my alarm but didn't wake up. When I finally got up, I did what I did in my dream and it worked better than the existing code.
Turns out my brain is great at Java evaluation now, I guess.4 -
RedHat Certified Expert in Virtualizationjoke/meme struggle redhat oneinfew engineering certificate destiny international goals mehnat engineer recognized6
-
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.14 -
I mostly learn from myself and pick sectors to work within, thus far:
Sms ~ 2002
E-health ~ 2004
Workspace virtualization ~2011
E-commerce ~ 20171 -
New Phrack article. Given they release like one a year, figured it warranted posting a link.
Title : Hypervisor Necromancy; Reanimating Kernel Protectors
Author: Aris Thallas
Date: 2020 Feb 14
"In this (rather long) article we will be investigating methods to emulate proprietary hypervisors under QEMU, which will allow researchers to interact with them in a controlled manner and debug them. Specifically, we will be presenting a minimal framework developed to bootstrap Samsung S8+
proprietary hypervisor as a demonstration, providing details and insights on key concepts on ARM low level development and virtualization extensions for interested readers to create their own frameworks and Actually Compile And Boot them ;). Finally, we will be investigating fuzzing implementations under this setup."
http://phrack.org/papers/...2 -
Oh fucking hardware virtualization.
how many times have I failed at setting sth up googled it and just read "check your BIOS ... and enable..."
Well I would IF I FUCKING COULD. THERE AIN'T NOTHING TO ENABLE ON THIS CHEAP CPU.
I know. I know. Should just get a newer setup, this lappy ain't that powerful anyways - but still - it's frustrating to get excited, start sth and than hit that dead end realizing they presupposed sth I don't have.5 -
Have a question about my career:
So far my career out of uni has been like this:
8 months in first place working as C# .NET dev, creating native desktop apps for windows. job was shitty, was not getting any best practices skills so I left.
12 months in 2nd place working as android dev in a startup. was working all alone and had to rebuilt my app up to 5-6 times to learn best practices. startup didnt care about android app at all so I left and now doing just some small freelance work for them.
3 months in new startup as android dev.Today I was told that its decided to focus on iOS and do all marketing (also uplift of new design) only on iOS. basically for next 3-4 months they don't plan to do much on android side. they saw that I showed some interest in backend and now they are asking me to talk with two other senior guys about starting with some small tasks for me on backend.
Our backend is mainly using python. Also backend guys will be pretty busy for next few months because they will have to deliver many new features in next few upcoming months. I've talked with one of them and he said that this is a bad idea to force frontend to start working on backend. However I feel that he's sort of gateekeping and probably just doesn't want to help me with getting up to speed.
In my defense, my knowledge doesn't end with C# .NET desktop apps and native mobile apps for android.
I have hobbie projects (gameservers) where I worked on websites (php,html,css,javascript,mysql) and also was taking care of a java based gameserver which is hosted in a linux vps.
Also I've had a small hosting "company" where with available tools I've managed to automate VPS(virtual private server) ordering, web hosting ordering and domain ordering. Basically I owned a dedicated server and did everything using whmcs, cpanel and proxmox virtualization.
I trust myself in learning this backend stuff and doing whats required, however I learned everything by myself and I won't follow all of these best practices.
Should I accept more responsibility on backend or should I continue focusing on android?7 -
I am seeing a lot of people infuriated a lot about windows10 updates.
And I am just sitting here on win7 with disabled updates.
Waiting for some free time to fetch my new computer with ryzen, throwing some linux dist on it and virtualize the shit out of windows for gaming only.5 -
Been sitting in this Chair for Well over 5 hours now trying to setup virtualization on this Debian Server.
EVERYTHING IS FUCKING OUTDATED.
NO PROPER DOCS.
NO NOTHING.
FUCK THIS IM GOING TO SLEP4 -
Recruiters or their bosses with sick ambitions and zero feedback.
Do I need to say more?
Spent few days to make my site looking good on desktop/mobile with few screenshots and even video to show my working projects in production. Even more few days to make really detailed 2 A4 CV with my previous job and what I was doing there. All generated from markdown.
I even saved money around half a year to go and live month in other country (Ireland, Dublin) and then on site send about 150 applications on various sites, emails, linkedout and local IT meetings.
Null, nada, nil, NaN accepted applications.
Is it some kind of joke? All companies almost cries for new workers and they don't even answer someone which founded and have no problem with growing own IT company for almost 5 years with self learnt, practically applied in production linux, HTML, CSS, JS, PHP, Go, bash, KVM and Openvz virtualization knowledge?
What they really want?
Astronaut with Brainfuck and Cobol with fluent backwards speaking Esperanto riding on monocycle with 3 hands and no need for sleep for -1 whoopercoin?1 -
let's try something new
(virtualbox only right now - i kinda sorta lost all my isos due to not paying attention to which drive i was writing one to, and accidentally wrote over the drive with the isos 😥 { as well as all of my school material, and game projects. }... i really need a server to back things up to, y'know?4 -
Nitrux OS
I feel that this piece of wonder isn't getting the recognition it deserves.
One of the most beautiful UIs out there, revolutionary tech like znx(booting from the main iso ALWAYS and keeping user data across reboots, in a nutshell) and it has weird ass virtualization stuff that allowed them to run windows with very little virtualization overhead(tech details yet to announce).
Imma stop here before getting labelled another fanboy, just check it out and see for yourself
Thanks for reading, i use arch btw8 -
Why Virtual Box is so laggy on Mac?
I gave it maximum resources and it's just sucks. On windows however Virtual Box is so fly...
Does anyone have any free virtualization solution for Mac (I'm trying to run Linux VMs)5 -
my new rig is more and more causing me issues:
- Ryzens fucking kill 9x and MS-DOS applications and the OSes themselves when they run unemulated, so they can't be run in a KVM. This makes them slow as shit, and in qemu-TCG's case, buggy as shit too. VMs can't reboot successfully, they have to be totally forced down and brought back up on TCG or they hang during the reboot. It also performs poorly. VERY poorly. The "shit runs full-speed like 65% of the time and it feels slow as fuck as video output is a stuttery blurry mess" type. This makes 2 projects problematic to complete and I have to remake 17 VMs in virt-manager now as vbox doesn't work with any virtualization method for a 9x/DOS guest now!
- For some reason my new RX 5500xt has an issue when it hits about 80% usage, the fans spin to 100% on it at 80% and taper off to like 5% when idle. Pretty standard stuff... except it's erroneously tied to... current load, not temperature. Hmm.
- Debian got an update that renames my ethernet device mid-boot. Up until just before the login screen, it's named "eth0". After that, it's named "enp8s0". This was hell to work around and idk why it does this.4 -
The end of today was extremely fun.
Imagine the surprise. I was importing a simple 8 GB big virtual machine into the Proxmox hypervizor.
First issue: It was in the Open Virtualization Format (.ova) for easy import into... most hypervizors... Not Proxmox, however.
But really, not that bad, there are ways around it. Create a blank virtual machine through the UI, scrap the disk you create, then extract the two disk QCOW2 files from the .ova file, which by itself is just a POSIX TAR archive. Then import them through the commandline.
...So I did just that. The larger of the two was about 8 GBs, the other just like... 50 MBs.
The larger imported fine. The smaller?
Color me surprised, when it created a FUCKING. 1. TB. LOGICAL. VOLUME.
...
That it then proceeded to try and fill full of zeros...
Oh yes, it was one of the fancy dynamic storage files that expand as space is needed.
...
Tomorrow, I'll have to try if I can export just the filesystem data into an individual, shrunken down, normal, plain, old disk. None of this fancy black magic shit.
...Also... I don't get why Proxmox doesn't support that... The filesystem was only a few megs big... Ugh.1 -
Some time ago I was looking for materials regarding Ansible automation tool and realized that most of them suggests setting up the lab environment using virtualization (like VirtualBox). In my opinion that is not the best approach – virtual machines consume lots of resources and take some time to start/kill. So I decided to write a guide for setting up Ansible lab environment using Docker containers. Containers require significantly less resources than vm’s and can be bring up and down really quickly. Additional advantage is easy way of automating whole environment using docker-compose. You can find my guide at github: https://github.com/LMtx/... Any feedback is very welcome :)3
-
I've been wondering for a while about something...why do so many devs complain sooo much when they have to to stuff not related to their main area of expertise.
I like learning and trying everything if I have the opportunity...backend, fronted, database, dev-ops, crypto, networking, virtualization...I stuck my nose in everything...but I see a lot of people moaning and despairing when they are thrown out of their comfort zone.
Like why...it's interesting... it's not always sunshine and rainbows but knowing something new in IT is never gonna hurt you...who knows maybe someday it's gonna help you get out a tight spot or land that awesome job you wanted.
Ok I'm done 😁11 -
PSA: VirtualBox command line setup only works if....
--cableconnected1 on
Why does virtualization replicate these problems... Why?? -
How the fuck can people acutally work with freaking windows?!
I use a dual boot with ubuntu and windows, the only reason why there is a small piece of windows is because i like to play games some time, and the freaking developers who are coding them are afraid of windows or whatever ...
Anyway, i wanted to try something with windows and app virtualization which required me to use windows. Holy shit everything is so freaking complicated if you want to do it not with a gui. Need some admin rights, ... no dont use the terminal you need to right click 'run as admin' and shit. I mean wtf?!
How can people who have a freaking idea of what they are doing using windows?!
Every f*cking minute with that shitty os feels like a hour. 2 blue screens so far, and it seems m$ decided to download some updates that freaking block my work and getting my pc to lag ... what a piece of sh*t!21 -
I've been developping some software so an entire debian OS gets bootstrapped and installed with all the desired software with the help of puppetlabs software...i need to prepare a server that can handle virtualization and be fast at it. So all the goodies a decent server needs, the apt, caching, networking, firewall, everything checks out... I want to test kvm virtualization... Doesn't work. Wtf? Spend a decent amount of time figuring out what the hell is wrong... I finally dzcide to think 'what if my buddy accidentally gave me a bad mobo'...
$ grep -e (vmx|ssm) /proc/cpuinfo
Nothing...
I feel so stupid to not check the mobo virtualization capabilities.3 -
UGH.
I hate when I have to debug an issue and find out its somewhere entirely else, than I was looking.
>Installs a virtual server on the Proxmox VE platform
>Reboots and grub be like "No such device *UUID*"
Whut?
Okay, so... reinstall grub, maybe a bug in the automated install?
>Nop.exe, still an issue
Huh...
>Partition tables all good, drives all visible when booted from a live environment, grub is up to date
>Finally gives up and goes to mess in the (terrible) grub rescue environment
>Grub only sees (hd0) while root is on (hd2), what?
>A whole lot of cursing ensues, wtf?
Turns out it was a bug, but not in grub... Rather, in the QEMU-KVM agent daemon, wtf!
I never had to deal with a bug in the virtualization agent itself.
Downgrading from pve-qemu-kvm 5.0.x to 4.0.x solved the issue.
Now, maybe, I can finally go have my lunch... -
finally got my server up and running with a configuration I'm happy with! running Proxmox VE on the host, and each application in an LXD Linux container within Proxmox, and a reverse proxy server on the host to route subdomains to internal container IP addresses. check out what I've got running! https://mjones.pizza2
-
What is the best laptop for development?
Especially if you work a lot with virtualization, containers, the cloud, and a lot of systems programming. And you like to simulate a lot of distributed environments on locally?3 -
1. Explain docker in layman's term (example to your Grandma)
2. Explain in detail why docker is good and fast compared to any related traditional virtualization like VirtualBox, vagrant, etc.
3. If you are going to migrate an existing Symfony application to Laravel from scratch, what will you migrate first in order to make it efficient. Model, view or controller? And why?3 -
WFH gives me a legit reason to splurge and upgrade my pc: "using a VPN connection to remote into my workstation is less than ideal for development, Dear; I should really upgrade my memory and storage if I'm going to be developing at home for while. I assure you this has nothing to do with gaming or dicking around with virtualization."3
-
*The one where he breaks ssh*
TL;DR: Minikube's dick is too big, and my ass wasnt ready.
So there was a time about 2 weeks ago where i wanted to try and set up a minikube cluster using SOP, and that actually went okay, aside from having to move over to a completely different server after discovering that my processor doesn't support virtualization.
So i set it up on my other server, and everything immediately starts going to shit; i can no longer run commands without processor latency. Also top shows 200% CPU usage. Maybe i should stop... NAHHH... so i continue on, and the biggest fuck up was starting up the nginx pods. I have 6 of them, and the moment i try and stand up my custom container which was the WHOLE POINT of this whole exercise, i lose ssh access and cant get back in. I go over to the server and kill the minikube and virtualbox processes, and everything's back to normal.6 -
So being in ops, I have certifications in networking and Linux, and am currently working on my Certified Kubernetes Administrator exam.
I've been talking to a few "professional" (they have jobs) devs that I personally know, and with the exception of 1, it seems like version control, automation, networking, and server related tasks are beyond them.
As I want to get into the dev side of things (devops preferably), I feel somewhat overwhelmed at some of the requirements of the job, especially knowing that I cannot take too much of a pay hit as I have a family to support.
My question is this, based on real world experiences with hiring, how much weight do you think knowing your way around networks, cloud, virtualization, servers, and all of the other things ops does when it comes to getting your foot in the door for a dev job?
I've casually looked around, and it seems that getting the foot in from this side is almost impossible.2 -
Yo been a longtime.
So I basically quit my last job to have successfully reached the top company in my country only to find they are such a mess.
No code quality whatsoever, testing? Yiu crazy? And all the old people who think they are senior whilst they do not know jack..
I do distribured web applications, but shit I hate titles and I think of myself as a software guy, I can do software that opens the fridge when I close the toilet lid ffs!
So, I am looking to deviate my career from web to something more deep such as distributed systems and services where I can use all of my skills and expand my knowledge more, and be able to code in js, c++ golang and more, handle and tackle infrastructure issues, virtualization etc...
So I want to ask you guys what would be an interesting project I can work on to concretize my skill and be able to convince my next recruiter that I walk the talk.
Thank you everyone7 -
I can't wait until I feel like Dr. Frankenstein when I build my PC this week. My first real computing rig!!
Some backstory: My main dev machine is my old Lenovo laptop running Ubuntu (my baby). I took Windows off of it when I got a Surface through a job and have been using that for Windows specific work. I'm going to be giving that to my little sister next time I travel home. In short, this is the first computer that will be able to cut through anything I throw at it and play games that aren't at least 6 years old.
The build is centered around an i5-8400 and gtx 1060 6GB, and I'll be running Windows as a primary OS for gaming. However, I fell in love with programming on Linux and there is no way Linux won't be on my machine. I understand the differences between dual-booting and virtualization, but I want to hear how you guys run Linux on your Windows gaming machines or if you go about it another way. I also have heard horror stories about drivers for Linux, and wonder if my graphics card being certified by Ubuntu LTS actually means that it will operate correctly. I have also only ran VMs on crappy computers so I haven't had any experiences where that performed better than dual-booting. I'd love some feedback or to hear about all of your setups, as hardware has never been my strong suit.
I'll post a pic of my setup when it's done too.4 -
So, the story starts with me getting a job. Full-time job for the first time in my 21 years old life. After short conversation about how amazing this company is, after countless lies and stood questions they decided to hire me. I had to get come on Monday a week later with everything prepared.
So of course I did that and got to my workplace on designated time. Turned out nobody was expecting me, nothing was prepared for a new programmer and everyone seemed angry at me for no apparent reason.
After long talk with my new boss I got some less than 100$ pc with CPU that couldn't handle virtualization and expected me to work on software that needed extensive use of virtual machine.
PC is of course filled with all kinds of spying software that uses most of the resources. IT teams only job is to check if programmers are working their assess off for at least 8 hours a day.
I've filled a ticket about granting me access to Debian machine on the mainframe so I could work. No response for two weeks. I've lost hope already.
I have to work on open space with more than 30 engineers. Screams, phone calls, alarms, all at once, all the time. My colleagues seem to not care and I can't understand how.
I was tasked with rewriting major application because old developer did some half assed piece of burning shit. It took him more than one year, I'm finishing it in less than two weeks.
Of course nobody except for me is preparing any kinds of documentation. I had to reverse-engineer whole API for alarm system.
Salary is less than a junior programmer should earn.
But I'm stuck here for at least a year because nobody's here wants a guy whose only experience is as a freelancer. -
Recently got a couple r710's and started dabbling in the world of ESXI and wondered if anyone had any experience here? And if they did wouldn't mind being a mentor/tutor from time to time?5
-
I got a fuzzy understanding of differences between Platform as a Service (PaaS) , Infrastructure as a Service (IaaS), and Software as a Service (SaaS).
I wanted you guy to clarify it for me. For me
IaaS = You choose how much RAM , CPU , Storage you wanted and the provider create the OS for you by virtualization technology and you can do whatever you want on that OS
PaaS = The provider said here is a services (database , docker ,---etc) we offer to help you develop your own software. You use the service we offer and we charge you by how much you use our service.
SaaS = The provider said here is the complete software. You can just use the software and we charge you how many request you send or how many data you store,--etc.
Is the differences between IaaS and dedicated server is that in IaaS you may share the server with other client by virtualization and dedicated server give you the whole server?13 -
Today I am experiencing all the joys of workspace virtualisation, with CIT that only looks at security, not what is used by the people and why... They restrict me now from doing my work... While I am sitting at home 🤭 yeah open up another ticket explaining these asshats that we need things to get our jobs done, and that they just do things to pretend to enhance security by destroying productivity
Let us walk into ragnarok with sun on our faces... Why the fuck do I even work here? -
how is it that the android emulator in android studio runs buttery smooth on my up-to-date linux ryzen setup with just few terminal commands to set up, while my up-to-date windows version has some bullshit problem with virtualization, even with SVM on, Hypervisor all good, and yet crashes with a WHPX(?) error?
i mean ok i don't have an intel at hand but still the problem should be fixed by now according to google docs. even the fixes provided by the internet didn't help. this twist between windows and linux is very weird on my machine.1 -
Nix vs. Win
Dual boot vs. virtualization (VirtBox vs Xen)
(TLDR at the end)
- gaming laptop ("when you student but gamer")
- "Nix nono like gaming laptops"
- currently dual boot Win10/Debian
- Debian almost breaking apart
- only xfce because nVidia
- intel-virtual-output^2
- Atheros drivers sometimes freeze whole sys
- MiXeD SoUrCeS
- **Stretch Buster Kali enters the chat**
As you can see after 2 years I have come to the point of redoing everything, wanted to ask any tips on how to setup win and any nix enviroment, win just to play some games and sometimes to reverse win specific CTFs.
Main plan was to have my lovely debian as the only system and run win10 in virtualbox - problem: windows don't like virtuals(?) and it's probably going to be unusable for games.
Also running Kali as separate virtual (why the hell I didn't do that in first place ?)
Xen is the other interesting way but I am not experienced with hypervisors.
TLDR: Would running Win10 as virtual in or alongside(hypervisor) Debian be better/same as having them separated - dual booting?12 -
&& rant
spent all fucking day fucking around with my server. installed gitlab to mydynamicdns.service.com/gitlab. but, gitlab still handles requests at mydynamicdns.service.com/ but it's just a 404. couldn't figure out how to host anything else. fucked around with it for like 5 hours, tried installing some shit called passenger, but by that point, I had already fucked up my environment pretty good so that didn't work at all. spent like 3 more hours fucking with it.
fuck it. time to learn about virtualization. someone here suggested Proxmox. how exactly does it work? is it running a fully blown vm for each server or is it running something like docker under the hood? and does each server then have it's own IP address? -
I want to use a old (like around 6 years or so) old laptop with a i3 as controllcenter (for music, smarthome and stuff), writing machine and for some light virtualization maybe. It will run Arch (because i want toll tinker around with arch, so much fun ^^) and i just want to know your oppinions: Good Idea, Bad Idea and do you think it will even be working?1
-
Currently thinking of changing my dual boot setup on my desktop for ESXi with Windows (with GPU passthrough) and Ubuntu as second VM...
What do you think?2 -
Just wondering. Is an ASUS ROG worth it for programming and virtualization? Or there are better ones that are cheaper?3
-
How can anybody use virtualization on Windows? Seriously! My second experience with Hyper-V. Not only it can't do basic stuff like forward devices into VM. And CPU and network configuration is simply a joke with almost no settings. But even those few stop working after a while! Aaarrrgh! Spend hour clicking like crazy trying to get network working. I wanted just a simple network between host and guest. Willing to setup static IP. Can't be simpler. But no, can't do. Somehow started working after ten times trying the same. And stoped after few seconds. Are you kidding me? And there are people using this peice of crap seriously and even call this production? Screw it. My brother will have to learn to have VMs in Linux.5
-
I'm currently evaluating the best way to have both a linux distro for work and study and windows for gaming on my PC.
I need as little virtualization as possible on both systems (need to do some high performance computing and access hardware counters for uni and that sweet Ultra Raytracing 144 fps for games) and as mich flexibility in quickly switching between both systems (so dual boot isnt ideal too)
I tried WSL2 but had some issues and am currently trying out a Lubuntu VM on my windows host, but maybe someone knows the secret super cool project that magically makes this unrealistic wish work.7 -
WSL seems really cool from what i've been toying with it. WSL2 seems like it'll be even better and the integration with docker(another thing i'm toying with) looks interesting. as far as i can find though it's only on windows insider for now, and I don't like having telemetry on my main machine.
So i spent a good chuck of my day just setting up Hyper-v, learning about nested virtualization (so docker will work), setting up a win10pro vm, and i'm now in the process of setting this up to be a virtualized dev machine (not gonna be a one use only system cause i spent way too long on this shit) and setting up docker and wsl
I don't know much about docker or WSL beyond just some random stuff i've learned to toy with to simplify some things i do. but maybe this will give me a cool way to actively learn more about them and maybe use them as more than just boredom toys3 -
https://nakedsecurity.sophos.com/20...
Is this legit ?
It is as a result of a query I have, I am curious if Docker's claims to system isolation between apps is verifiably universal.
There have been a number of attempts at virtualization that avoid VMs, and I have always wondered is there a way to access the host systems kernel through these ?
Thoughts ?18 -
so I got the reverse proxy all set up on my server, forwarding all the right headers to enable SSL behind reverse proxy. awesome! my only problem remaining is, since nginx only handles HTTP/S traffic, I can't connect to my gitlab instance via ssh. anyone know how I can proxy this traffic as well to enable ssh connection for git?2
-
What Hardware specs should I focus on when buying a server which runs virtual machines using ProxMox or XenServer?4