#xen — Public Fediverse posts

Reading up a bit on Linux containers

I wonder if the efficiency of them is close to that of freeBSD jails

https://linuxcontainers.org/

#Containers #VM #freeBSD #jails #programming #XEN #networking

XenServer 9: Now from Citrix again – and not just for desktops

Citrix introduces XenServer 9 as a preview. The new major version updates the hypervisor and aligns it for all workload types.

https://www.heise.de/en/news/XenServer-9-Now-from-Citrix-again-and-not-just-for-desktops-11352189.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege&utm_source=mastodon

#Citrix #IT #Server #Virtualisierung #VMware #Xen #news

citrix XenServer 9 has been published today.

be aware of some changes:
* systemd "predictable" network interface names in dom0
* Host BIOS Boot Support has been removed
* Linux Bridge Network Stack has been removed
https://docs.xenserver.com/en-us/xenserver/9/whats-new
#citrix #XenServer #Xen

XenServer 9: Jetzt wieder von Citrix – und nicht nur für Desktops

Citrix stellt XenServer 9 als Preview vor. Die neue Hauptversion aktualisiert den Hypervisor und richtet ihn auf alle Workload-Typen aus.

https://www.heise.de/news/XenServer-9-Jetzt-wieder-von-Citrix-und-nicht-nur-fuer-Desktops-11351799.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege&utm_source=mastodon

#Citrix #IT #Server #Virtualisierung #VMware #Xen #news

What would be the equivalent of Scheduler KIST (a C-tor option at one time) in #Rust #Arti #tor? Certainly not an option in the future paradigm. A man pages for the Cargo modules at (crates.io)? We can see "low water" in Arti which is exactly the cure. But it appears that a priesthood of operators will be in control of the fine tuning the torrc once had.

- Tor network adversary obstructs and degrades service with traffic shaping techniques.
"active bandwidth perturbations"
https://arxiv.org/pdf/2605.05887

- Threat Actor blocks tor from VMs
but TAILS not obstructed (virtuio pci, module xen uevent -- abstractions from hardware) -- pvh destroyed in Xen (libxl)
#TargetedHardware #LibrariesWeaponizedAgainstThePublic
#Qemu #KVM #Xen #Virtualization #Censorship #MT #TickTalk #SuperFilter

@torproject
@whonix
@rustaceans

as far as I understand

#Xen: What is the minimal hardware we need to emulate to get a VM? We might need to customise/change the operating system.

qemu(+kvm): Let's emulate the full PC with mainboard and all chipsets and everything. Damn that is slow. Lets reinvent optimised virtual hardware in the #VirtIO project.

Hugh Grant Tables. Heh. #xen

#Xen jetzt mit 5 Jahren Sicherheitssupport

https://borncity.com/blog/2026/03/14/xen-dehnt-support-fuer-sicherheitsfixes-im-stable-branch-auf-5-jahre-aus/

At @bawuenet we're in the process of upgrading our #Xen #xcpng hypervisors to #uefi boot. Of course, we automate things and want to be able to reinstall our hypervisors from network boot. Our EFI netboot system is based on #ipxe which means it can only load EFI binaries. But xcp-ng ships the Xen kernel as a multiboot2 based image.
As probably one of the most weird ways to solve this problem, I've decided to chainload #grub2 from iPXE and learned a bit! 🧵

So rebooted into NixOS and after having compiled some food I've tried passing through the end devices using KVM. And well it works with KVM. So what is wrong with my #QubesOS aka. #Xen config then?

Also because I thought it was funny I also tried attaching the Intel A380 to a windows XP VM.
The generic driver for the video card doesn't work.
It has a generic audio driver that almost works. It matches the device but fails to start :p

Oh, Xen cannot pcie passthrough "non endpoint devices" like KVM can. That makes things unnecessarily difficult...

Why can't I just passthrough the entire PCI-PCI bridge device?

#Xen #QubesOS #KVM

Sooo are we just going to ignore the vulnerability qsb-091-2023 "Xen Security Notice 1: winpvdrvbuild.xenproject.org potentially compromised"?

I do not see any more recent build of the XEN Windows PV Drivers.

Even the ones linked on the website https://xenproject.org/resources/downloads/ right now are only from 2023-07-13. Which is 11 days before that vulnerability was published.

Also the part that they replaced the executables with a warning text doesn't seem to apply to that website either...

#infosec #Xen

Each time I read stuff about Xen I want to prefer it. But then I see the benefit of running VMs and containers in parallel which is kind of not possible with Xen. Then I use bhyve/vmd/vmm/… again.
#Xen

Is there any technical reason why one would consider using Xen (or XCP-ng) over KVM at this point?

#Xen #XCP_ng #KVM #HomeLab

What do you think, what is the better thing to user for a home lab setup with 1 and maybe in 1-2 years a 2nd host that is also used as the main desktop.

Or should I go with a full on VCF install (just kidding, I'd at most I can run it nested, as I'd have almost 0 resources available once all of its management components have booted up)

#HomeLab #NixOS #qemu #KVM #XEN #QubesOS

Morgen muss ich mein XCP-NG-Shirt anziehen, um wieder herunterzukommen von #AWS ESC und dem #BSI‑Thread, und ein Statement für eine großartige europäische Virtualisierungslösung von @vates abgeben. 😌

Wir können in Europa nämlich auch IT und so …

#vates #xcpng #virtualization #opensource #awsesc #digitalsovereignty #xen

Xen from Omega X has covered The Truth Untold by BTS
https://www.youtube.com/watch?v=CTFvGPGHi1o

#kpop #CoveredByKpop #Xen #OmegaX #Jinwoo #1Team

I'm looking for virtualization-based desktop Linux setup

I love virtualization in Linux and I would like to have operating system which will work only as minimal, air-gapped as much is possible host for my guest operating systems. Qubes OS project really interested me but it’s based on Xen hypervisor so it might cause troubles with GPU Passthrough which is really important for me also I’m more interested in KVM. In my case it’s not only about security and privacy but also about fun and learning. What can you recommend? I think that good choice might be Gentoo Linux because it allows for minimal installation and remove unnecessary software like CUPS, Bluetooth entirely with flags which will be great option for host only OS. But I had experience with Gentoo and it’s not easiest way 😅 Debian might be easier option but I will have less control over my system. Maybe you have other interesting options?

https://piefed.social/c/linux/p/1581319/i-m-looking-for-virtualization-based-desktop-linux-setup