ByteGirl
N-gated Hacker News👶🎩 Ah, the classic tale of a newbie coder's first foray into Linux kernel hacking. It's a gripping saga of hair-pulling sign-extension bugs and hypervisor mysteries that only 3 people on Earth truly understand. Dive in, if you dare, to this epic chronicle of reinventing the wheel—because who needs existing #hypervisors anyway? 🙄🔧
https://pooladkhay.com/posts/first-kernel-patch/ #newbiecoder #linuxkernel #codingadventures #techstories #HackerNews #ngated
A wizard did it 
🇨🇦You can't buy VMware. What do you choose for your prod environment?
#vm #proxmox #hyperv #hypervisors #infrastructure #infraSec
#vm #proxmox #hyperv #hypervisors #infrastructure #infraSec
Hyper-V
Proxmox
Poll ended at .
Bruce Simpson, Ph.D.This does not prevent guest VMs from syncing to #PTP, but you won't get the benefits of hardware #timestamping you may as well rely on your #hypervisors native mechanisms, unless you need to measure pDelayResp latency and jitter on the virtual switch itself (in this case, #Linux bridge).
Ah yes, the thrilling world of #hypervisors, now with a Rusty twist! 🚀✨ Dive into this novel-length intro, where you'll learn absolutely everything about hypervisors except how to stay awake through it. 🙄 Spoiler alert: they're really just #VMs with a superiority complex. 🖥️👑
https://tandasat.github.io/Hypervisor-101-in-Rust/ #Rust #programming #tech #humor #virtualization #HackerNews #ngated
https://tandasat.github.io/Hypervisor-101-in-Rust/ #Rust #programming #tech #humor #virtualization #HackerNews #ngated
Aaron LongchampsFinally organized my thoughts into a blog post around the state of hypervisors in my home lab, with some new hardware. I also called out a few nice features of XCP-NG and Proxmox that I discovered while I was evaluating both of them.
https://medium.com/@a.j.longchamps/home-lab-hardware-refresh-september-2025-edition-3e50767b63e1
#homelab #hardware #hypervisors #ansible #automation #debian #kubernetes #learning #tinkering #proxmox #xcpng #minisforum
raptor 
A Fuzzy Escape - A tale of #vulnerability research on #hypervisors
지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltConceptual conflation, in a bunch of paragraphs.
This is not how it works.
https://thenewstack.io/bare-metal-kubernetes-the-performance-advantage-is-almost-gone/
Supposed "hard" limits can as well be enforced with #containerization. It is just less common and not necessarily desired.
And no, those limits are not hard, and no, #hypervisors do not guarantee isolation either - see e.g. all the recently revealed #VMWare bugs with integer overflows and underflows, array out-of-bound accesses etc..
"Wish the sun to stand still.." 🌞⚠️ Just a reminder, folks:
The "container" movement on Linux emerged as a convenient way to manage different, possibly conflicting settings & dependencies for different apps on a machine. "Security" by sandboxing got tacked on later, and the quality of that isolation remains LOW regardless of all the trendy project names and acronyms that have filled that space.
Data centers' standard for high security consists of virtual machines (type 1 hypervisors) or separate dedicated hardware. Ain't no way, no how is a successful datacenter going to ask a giant, complex, contorted Linux or BSD (or hybrid Windows or Mac) kernel for sandboxing services to contain threats.
If you are using containers to enhance security – on any general-purpose machine – make sure they are running as VMs, or as sandboxes on a microkernel (not monolithic) architecture.
#infosec #security #containers #hypervisors #microkernel
