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Search - "proxmox"
Bought a dedicated server a while ago and now have around 1800gb out of 4 disks in it.
Hardly knew how to work with proxmox/raid setups and so on a few days ago.
Can configure the basics without thinking as for now!
Gotta love learning stuff with open technology and seeing yourself grow 😃6
Before anyone starts going batshit crazy, this is NOT a windows hate post. Just a funny experience imo.
So I was tasked with installing ProxMox on a dedicated server at my last internship. The windows admin was my guider (he could also do debian). (he was a really nice/chill guy)
So we were discussing what VM's we wanted and the boss (really cool dude by the way) said he wanted a VPS for storing some company stuff as well. Fair enough, what would we use? I suggested debian and centos. Then we started discussing what we'd do if the systems would fuck up etc (at installation or whatever).
So I didn't wanna look like a Linux Nazi so I suggested windows. Then the happy/positive guider/windows admin suddenly became dead serious (I was actually like 'woah' for a second) and said this:
No. We're not going to fucking use windows for this. For general servers etc sometimes, fair enough but we're talking about sensitive company data here. I don't want that data to be stored on a proprietary/closed source system, hell what if there's some kinda fucking backdoor build in, who can fucking verify that? We're using Linux, end of discussion.
I was pretty flabbergasted as he's a nice guy and actually really likes windows!
Linux it became.5
So I recently started discarding Proxmox for Arch on my experimental server.. new skill acquired 🙃13
Upon suggestion of @platypus I went to the cafe and just took my tablet there (unfucking the laptop's rootfs flash drive took too long, and ArduinoDroid's avrdude didn't seem to work very well), so just doing some chatting in IRC and trying to figure out how the hell I'm supposed to make a serial link to a Proxmox VM from the host (thinkstation on the top left pane).
Attached below is the screenshot of that.. much turminel, very h3xx0r! But so far nobody has come up to me calling me "evul h3xx0r" yet.. very intriguing! I expected things to be much worse.
A glass of Duvel in front of me, tastes great! Cheers!18
Proxmox, i love you but kindly to fuck yourself.
It shouldn't be such a pain to get you up and running.
Let's go for CentOS or Ubuntu server, then.
This rant is particularly directed at web designers, front-end developers. If you match that, please do take a few minutes to read it, and read it once again.
Web 2.0. It's something that I hate. Particularly because the directive amongst webdesigners seems to be "client has plenty of resources anyway, and if they don't, they'll buy more anyway". I'd like to debunk that with an analogy that I've been thinking about for a while.
I've got one server in my home, with 8GB of RAM, 4 cores and ~4TB of storage. On it I'm running Proxmox, which is currently using about 4GB of RAM for about a dozen VM's and LXC containers. The VM's take the most RAM by far, while the LXC's are just glorified chroots (which nonetheless I find very intriguing due to their ability to run unprivileged). Average LXC takes just 60MB RAM, the amount for an init, the shell and the service(s) running in this LXC. Just like a chroot, but better.
On that host I expect to be able to run about 20-30 guests at this rate. On 4 cores and 8GB RAM. More extensive migration to LXC will improve this number over time. However, I'd like to go further. Once I've been able to build a Linux which was just a kernel and busybox, backed by the musl C library. The thing consumed only 13MB of RAM, which was a VM with its whole 13MB of RAM consumption being dedicated entirely to the kernel. I could probably optimize it further with modularization, but at the time I didn't due to its experimental nature. On a chroot, the kernel of the host is used, meaning that said setup in a chroot would border near the kB's of RAM consumption. The busybox shell would be its most important RAM consumer, which is negligible.
I don't want to settle with 20-30 VM's. I want to settle with hundreds or even thousands of LXC's on 8GB of RAM, as I've seen first-hand with my own builds that it's possible. That's something that's very important in webdesign. Browsers aren't all that different. More often than not, your website will share its resources with about 50-100 other tabs, because users forget to close their old tabs, are power users, looking things up on Stack Overflow, or whatever. Therefore that 8GB of RAM now reduces itself to about 80MB only. And then you've got modern web browsers which allocate their own process for each tab (at a certain amount, it seems to be limited at about 20-30 processes, but still).. and all of its memory required to render yours is duplicated into your designated 80MB. Let's say that 10MB is available for the website at most. This is a very liberal amount for a webserver to deal with per request, so let's stick with that, although in reality it'd probably be less.
10MB, the available RAM for the website you're trying to show. Of course, the total RAM of the user is comparatively huge, but your own chunk is much smaller than that. Optimization is key. Does your website really need that amount? In third-world countries where the internet bandwidth is still in the order of kB/s, 10MB is *very* liberal. Back in 2014 when I got into technology and webdesign, there was this rule of thumb that 7 seconds is usually when visitors click away. That'd translate into.. let's say, 10kB/s for third-world countries? 7 seconds makes that 70kB of available network bandwidth.
Web 2.0, taking 30+ seconds to load a web page, even on a broadband connection? Totally ridiculous. Make your website as fast as it can be, after all you're playing along with 50-100 other tabs. The faster, the better. The more lightweight, the better. If at all possible, please pursue this goal and make the Web a better place. Efficiency matters.7
Oh look. The monitoring channel is in flames, smartphone is vibrating so hard it's having a seizure.
Hm. Nah it's fine. Not my...
Damn it. Incoming call. -.-
I'm actually on vacation (more like you need to trim down overtime before management get's angry).
They decided to test the new hardware / os stack I set up in the last weeks. I'd actually be happy about it If I wasn't on vacation and would be part in something that I invested a lot of time...
Well now I am. Guess what. It's running too good.
And that's not a joke. It's partly due to an upgrade in infrastructure (got rid of some last remaining 1 Gbps networks)… but also because I changed quite a lot on the OS / VM side plus we changed from XEN to Proxmox... With major tweaks, too.
The whole stack can now handle peak traffic where it would choke before, and even go beyond the old peak traffic.
Enough of introduction, the simple reason why shit burned down was because they tried out the current development branch and let it ran.
The development branch had an currently unfinished ratelimiter framework, since I didn't had time for an full burn in and didn't knew what the maxima / limits were. And since I hadn't finished that, I didn't finish the traffic shaping either.
Hm. Guess it's not good when you let a bunch of heavy parallelized data generators / analyzers run for free....
In the end, we simply shotgunned the docker development machines, because thanks to network congestion / retransmissions and feedback, they were not really cooperative via network / REST.
But hey: To infinity and beyond. XD2
Anyone an idea? Trying to install proxmox on my HP Proliang again but no matter what I do, it can't find a bootable disk. I've done this about 20 times before (and that worked well) and I did change the boot order but I already set that back again.
Anyone? Help 😥11
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
Creating a cluster with shared storage in Proxmox
Once you've learned how to configure a single Proxmox host and Linux and Windows guests, the next step is to expand...
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No TechTarget, how about you go fuck yourself? As if anyone is going to register just to read one fucking article on your goddamn shitty site. Fucking wanketeering dickheads.7
Just now I was reading on https://pve.proxmox.com/wiki/... about high availability. Now my Proxmox VE is just a tower (which happens to have ECC memory) that's stored in my storage room (and which is mostly used for experimental and home server purposes). But my mail servers.. those have been made with high availability in mind. Most importantly, I've made their services entirely redundant (but within the same datacenter). And when they have updates, I apply updates to one, reboot, see if it didn't break something and then do the same to the other server after the first one came up again. So no downtime whatsoever.
If memory serves me right, I think that I've been able to maintain these servers for the last year without any downtime at all (I reboot them every month to apply new kernels but they haven't both been simultaneously down at any moment). Does that make them High Availability? My interventions regarding their availability have been rather trivial. Is it really that hard..?4
Added a bond interface in my Proxmox installation for added cromulence, works, reboot again, works, reboot once more just to be sure, network down.. systemctl restart networking, successfully put the host's network back up.. lxc-attach 100, network in containers is still down apparently.. exit container, pct shutdown 100, pct start 100, lxc-attach again... Network now works fine in containers too.
Systemd's aggressive parallelization that likely tried to put the shit up too early is so amazing!
I'm literally almost crying in despair at how much shit this shitstaind is giving me lately.
Thank you Poettering for this great init, in which I have to manually restart shit on reboot because the "system manager" apparently can't really manage. Or be a proper init for that matter.
And yes I know that you've never had any issues with it. If you've got nothing better to say than that then please STFU. "Works for me" is also a rant I wrote a while back.12
What server monitoring do you use, both for statistics and security?
tl;dr ends here
Ideally I would like to have one clean dashboard that shows me all the nodes I have, proxmox already offers a great range of stats - but it is a page per container etc. so not ideal, I thought of having datadoghq, but their per host pricing is huge, since I have more than 5 hosts to track.12
Proxmox team, go fuck yourselves.
Now I'm sure that I'll receive a lot of flack for this, but hear me out.
I've tried Proxmox and was quite pleased with its web UI. But I hate how much it locks me into their own little ecosystem.
I want to use btrfs on my drives. Why is this impossible, yet the hack that is ZoL is your obvious alternative? An alternative wherein I can't even compile and run my own kernel, because then ZoL suddenly fails? And don't you tell me to compile your stock config, when it's well over 15GB large in your source tree.
Proxmox is literally the MacOS of Linux distributions. Which was even more so made clear by me being called an idiot by possibly wanting to run Same on the PVE host. Because why on Earth would sysadmins want to?! Why on Earth would sysadmins be competent for wanting to?!!
You know what? I'll just convert those Proxmox servers to Arch and say fuck you to all the bells and whistles that's Proxmox' web UI. Because at least Arch allows me to make my own fucking choices, limited only by what's supported by the Linux operating system.
Perhaps Proxmox will consider btrfs stable in 2021. Because you know, despite it being stable today in 2018, Debian and Proxmox alike live 3 years in the past, i.e. 2015. I hate the Debian ecosystem because of that, but boy do I hate Proxmox even more so. Bloody fucking piece of shit it is!!! 😡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.
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
Why the fuck does a windows server 2016 guest with ballooning service on proxmox take the full 10GB RAM from the host I assign to it?
I have installed all the virtio drivers and it does show in the guest summary itself the real usage of 1GB RAM, but if I check in htop or the datacenter summary, it shows the usage is 10/11GB all the time.19
just installed Pop! Os moving from Ubuntu 18.04 on my desktop. damn Ubuntu is so bloated, a lot of halt (freeze) spiking, cannot recommend it to anyone anymore.
Currently installing Proxmox on my server moving from Ubuntu 16.04 Server, recorded 4126 Hour of uptime. Damn it's gonna be a loooooong day3
to;dr: I think I'm retarded. I don't know how to networking.
got Proxmox set up on my server... sorta. I suck at networking. I bought a domain name, and I'm trying to have each container have a subdomain of the domain name I bought. each container has a unique internal IP address, but they all share the host's public IP address. so after a couple hours of googling, I THINK what I need to do is run a reverse proxy server on the public IP and route each subdomain manually to an internal IP address with something like nginx..... or am I retarded?4
Just for blatant curiosity; how many people would ++ this just to help me get a stressball to get through this day.
So today I woke up to a message that my jobs webserver was down; and that all personal webpages for the Uni went down with it. We had no idea why or how it went down but eventually someone got it up- just in time for our Proxmox server to go down; which runs our new web server (thankfully it's not live yet), our print server, our PXE server, and more... Loving today. Such stress. Very shit.
We have a memo on the window "Watch your FPMs" (fucks per minute)1
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
After the fun I had with the XEN Orchestrator UI ( https://devrant.com/rants/2554182/ ) I build an exporter that normalizes XEN / Proxmox API output and writes it into a nice spreadsheet.
Took PHP 7.4 for a spin. Sweet jesus, lot of nice stuff.
Been nearly a year since I did something larger than small scripts in PHP, but felt really at home again.
The type hinting and arrow functions made writing the exporter a breeze.
DTOs with typed properties spared me quite a bit of headache when normalizing the different APIs...
Utilizing *sort with fn arrow function is a pretty nice and concise one liner with the spaceship operator.
And I have now a nice spreadsheet...
Thanks at the PHP folks.2
I am messed up at installing a bunch of server app in proxmox, messed up the config, privileges etc.
Guess i need to start over -_-1
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
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*"
Okay, so... reinstall grub, maybe a bug in the automated install?
>Nop.exe, still an issue
>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...
Hey devs or sysadmin here in devRant I wanna know what hypervisor are you using in production or dev environment??
I will annex the hypervisor that I know and I work on, but are free to add more.
Vote with a "++" in the hypervisors that you use.9
I'd love to get into a career within the cyber security industry.
Anyone got advice?
I've played around with Kali/Parrot and setup a proxmox box to perform pen testing and have a fair number of PDF ebooks and audio books on networks, security and pen testing12
Fuuuuu Proxmox Fuuuuu Networking and Fuuuuu me being a Devops Noob
I dunno why it works again but it works again and it hadn't worked before and it just doesn't makes any sense !!
-- Edit --
Never rename a Proxmox Node ever kids!
For me that would be Proxmox. I know, people like it - but for no apparent reason it decided to nuke half my ZFS datasets in a pool, with no logic behind it whatsoever. All disks were tested, all came out good. Within the same pool there were datasets that were lost and some that remained.
I really don't get it. Looking at Proxmox' source code, it's more or less the command line tools and then there's the web interface (e.g. https://github.com/proxmox/...). Oh and they have the audacity to use their own file extension. Why not I guess?
Anyway, half my data was gone. I couldn't tell how or why or what the fuck even happened there. But Proxmox runs Debian underneath and I've been rather pissed about Proxmox' idea of "don't touch the host system aaa" for a while at that point. So I figured, fuck it I'll just take pure Debian then and write my own slightly better garbage on top of that. And as such the distribution project was born. I've been working on it for a little over a year now. And I've never had such issues again.
I somewhat get the idea of "don't touch the host" now, but still not quite. Yes, the more you do in the containers, the better. And the less you do on the host in terms of reconfiguration, the longer it will stay alive for. That goes for any system - more reconfiguration means usually means less stability and harder to replace. But sometimes you just have to work from the host. Like say migrating a container between hosts, which my code can do. You can't do that from a container, at all. There are good reasons to work with the host. Proxmox isn't telling that. Do they expect their users to be idiots? Only enterprise sysadmins amirite?
So yeah, that project - while I do take inspiration from it in mine - I don't like it. It's enterprise, it has the ZFS and the Ceph and the LXC and the VM's - woohoo! Not like anyone could implement that on a base Debian system. But they have the configuration database (pmxcfs), the distributed configuration database of a couple MB large and capped there, woah!
Ok sure it isn't Microsoft or IBM or Oracle or whatever, and those are definitely worse. But those are usually vendor lock-ins.. I avoid those on that premise alone :)3
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 spent the easter weekend migrating a bare metal Windows installation to a Proxmox VE server with a Windows VM (and set up an rdp client).2
First contact with XEN.
Xen Orchestrator UI / Web, logged in first time...
Wow. The UI is a big giant mess...
I don't care for this fucking bling bling shit... Need to have an overview of all VMs.
Oh Lord... Wtf... Icon hell...
Hm, I need more detailed information... Ah. Found the button.
Wtf... What's taking so long...
Bloody shit.... Why does it include real data diagrams of usage statistic per row????!!! (had pagination set to 100 rows, one row is one VM)...
Bloody christ, ain't no option to configure that monstrosity... Export function?... Nope... Great. This will be a giant fuckfest...
Rest API? Nope.... Non existent as it seems. Thought that would be common in the 21st century... Guess what, nope.
Oh interesting. An cli client in NPM?
Hm, pretty scarce documentation...
Poked it a bit... Got first results...
xo-cli --list-objects type=VM
Let's take a look...
Oh JSON. Gooooooo(d)....
Wow. The document structure looks like someone puked out alphabet soup...
Or maybe the dev had hemorrhagic fever and was suffering from delusion and blood loss.
After this... More than devastating experience...
I took a look at Proxmox REST API.
Sweet jesus. That's like... Stone Age to 23rd century. Oo
Seriously... It seems not so hard to define an API to get the data of all VMs... Without suffering a traumatic brain injury.1
What Hardware specs should I focus on when buying a server which runs virtual machines using ProxMox or XenServer?4