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XCP-ng Blog
Company blog · xcp-ng.org/blogsystemsprogramming
XCP-ng Blog is the company blog at xcp-ng.org, writing about systems and programming. Since 2018, 28 different Hacker News readers have linked it 50 times, most often “XCP-Ng: XenServer Community Powered”. It is still writing: the last post was on 2026-10-25, and you can follow it by feed.
Most-linked posts?
- XCP-Ng: XenServer Community Powered10 people · 11 mentions · first linked 2018-05-01
- XCP-Ng Next Generation Xenserver Cloud Platform4 people · 4 mentions · first linked 2019-03-25
- Bringing Rust to the Xen Project4 people · 4 mentions · first linked 2023-03-17
- XCP-ng 8.3 is now available2 people · 2 mentions · first linked 2024-10-07
- Xen 4.17 Is Released2 people · 2 mentions · first linked 2022-12-17
- XCP-Ng/Xen on Arm with System76 and Ampere2 people · 2 mentions · first linked 2025-11-13
- New Xen updates on RISC-V2 people · 2 mentions · first linked 2023-05-24
What Hacker News says?
A lot of the world has moved on from virtualbox to primarily qemu+kvm and to some extent xen. Usually with some higher-level tool on top. Some of these are packages you can run on your existing OS and some are distributions with hypervisor for people who use VMs as part of their primary workflows. If you just want quick-and-easy one-off Windows VM and move on, check out quickemu. Libvirt and virt-manager https://wik…
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on “I almost got hacked by a 'job interview'”Submitted Why Xen Wasn't Hit by RETBleed on Intel CPUs as a story · 130 points
HN discussionFor anyone curious about potential open-source migration options given the prospect of uncertainty around VMware pricing and support: - xcp-ng[1] is a support-available fork of XenServer. Migration[2] can be performed using export to OVA format and subsequent import into the built-in Xen-Orchestra interface. - proxmox-ve[3] provides a management UI for Linux Virtual Machine (LVM) and Linux Containers (LXC) hosts and…
Comment linking /docs/migratetoxcpng.html
on “Broadcom to acquire VMware for $61B”Submitted My vision for Open Source pro support as a story · 23 points
HN discussionI'm afraid after Heroku is not enough for you, if you don't use Kubernetes, you may end up inventing one. If you need a bit more than Heroku: 1. Try Render[0]. 2. If it is not enough, go with any Kubernetes you can afford, any docker registry and Pulumi or Pulumi+Helm[1]. For monitoring you can use either NewRelic[2] or Weave Cloud[3]. 3. If you find big cloud kubernetes too expensive, need more bandwidth, or are ju…
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on “Ask HN: Solo-preneurs, how do you DevOps to save time?”Submitted Making Rust a first-class citizen for Xen as a story · 17 points
HN discussionRed Hat is offering OpenShift virtualization, which is Kubernetes with Kubevirt. So some people might just use Kubernetes with Kubevirt. There's also Harvester "open source hyperconverged infrastructure" https://harvesterhci.io/ Or some Xen spinoff like https://xcp-ng.org/ Smaller shops are migrating to Proxmox.
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on “Ask HN: What are people doing to get off of VMware?”Submitted XCP-ng 8.3 is now available as a story · 15 points
HN discussionThe Xenserver fork is really great. https://xcp-ng.org/ very active community and timely updates without all the licensing restrictions.
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on “Proxmox VE 6.1 – Open-Source virtualization platform”Submitted Bringing Rust to the Xen Project as a story · 9 points
HN discussionHi there :) [XCP-ng project]( https://xcp-ng.org ) founder here. I made a presentation during last FOSDEM for those who want to learn more about this free/libre/Open Source fork from XenServer/Citrix Hypervisor: https://www.youtube.com/watch?v=VpGC5zuLjSs 25 minutes, questions included, with a recap on why and how!
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on “What Citrix is doing with Xenserver”Submitted Project and Release Tracking for Xen – Part 1 as a story · 9 points
HN discussionBit of a surprising comment - Xen is very widely used - even all of AWS is Xen (I believe), are you perhaps thinking of XenServer (Citrix's OS / Distro based on Xen)? If you do mean XenServer, well - yes some large places are still using it but it's definitely dying out after they proved very slow to deliver new features then put a restriction on free / open source users as of 7.3 onwards that prevents clusters grea…
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on “What Citrix is doing with Xenserver”Submitted Solving a Xen regression on FreeBSD thanks to the community as a story · 5 points
HN discussionI recommend everyone using XenServer to move to XCP-ng [0]. They take the XenServer sources, remove licensing restrictions and add some great new features etc (like nfs4.1, ZFS etc.). They're from the same people behind Xen Orchestra (web-based console for XenServer) [1], and offer pro support like Citrix [2]. I was about to move off XenServer with the recent changes to licensing [3] (tl;dr they removed a bunch of f…
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on “What Citrix is doing with Xenserver”Submitted XCP-Ng Next Generation Xenserver Cloud Platform as a story · 4 points
HN discussionXCP-ng is another good option, also does HA, and clustering https://xcp-ng.org/ It even has a nifty graphical/cli orchestration tool to boot. https://docs.xcp-ng.org/management/manage-at-scale/xo-web-ui...
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on “UK govt office admits ability to negotiate billions curbed by vendor lock-in”Submitted Secured Containers as a story · 4 points
HN discussionI use XCP-Ng for orchestration[0] and Xen-Orchestra[1] for management, both are open-source. Xen-Orchestra is open-core but if you build from sources or use an unofficial docker image, you can get a lot of the commercial offering back for free at your own risk. With Xen-Orchestra you manage one or more XCP-Ng Servers, combine them in pools, live migrate between hosts, patch your hosts and schedule VM backups to S3.…
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on “Ask HN: Which VM orchestrator do you use?”Submitted XCP-Ng: XenServer Community Powered as a story · 4 points
HN discussionHi, I’m the author of the blog post. The goal wasn’t to dive deep into technical internals this time, but rather to share some perspective on what it actually takes to master an entire virtualization stack — especially after years of working only on the top layer (orchestration, backup, etc.). We’ve seen firsthand how much more complex things get the deeper you go. That said, I totally get the desire for more techni…
Comment linking /blog/2022/07/27/grant-table-in-xen/
on “Few build Hypervisors. We're one of them”Submitted XCP-Ng/Xen on Arm with System76 and Ampere as a story · 3 points
HN discussion> Does Citrix still exist Yes, https://www.xenserver.com/ and French OSS derivative https://xcp-ng.org Citrix is now a private company run by former Broadcom head of software who negotiated VMware acquisition, https://www.crn.com/news/cloud/citrix-tibco-new-ceo-tom-krau...
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on “VMware is now part of Broadcom”Submitted Using SPDK with Xen: performance AND security as a story · 3 points
HN discussionDon't forget about the open-source XCP-ng[1] to which you can add Xen Orchestra (which is like vCenter; a key reason people use ESXi) which has a flat-rate (no socket, host or VM limits) $2600/year Enterprise license. And XCP-ng even supports migrating from VMware[3]. [1] https://xcp-ng.org [2] https://xen-orchestra.com/#!/xo-features/webinterface [3] https://xcp-ng.org/blog/2022/10/19/migrate-from-vmware-to-xc... a…
Comment linking /blog/2022/04/13/how-bedrock-streaming-migrated-from-vmware-to-xcp-ng/
on “VMware by Broadcom transition to subscription, end of sale of perpetual licenses”Submitted Zstd compression coming to XenServer fork as a story · 3 points
HN discussionA quick test-run on the pages linked from the hackernews front page: hackernews svg logo doesn't render youtube embed on the servo homepage doesn't load https://github.com/tpope/timl -> reloads/rerenders infinitely, uses 100% of 1 core https://akrzemi1.wordpress.com/2023/04/23/the-obvious-final-... -> hangs while loading the page, uses 100% of 1 core https://equalitytime.github.io/FlowersForTuring/ -> loads/renders…
Comment linking /blog/2023/05/23/new-xen-updates-on-risc-v/
on “Servo, the parallel browser engine written in Rust”Submitted XCP Next Generation – XenServer Based, Community Powered as a story · 3 points
HN discussionXen provides a great security design and a protocol to do hypercall that makes sense (unlike kvm+virtio which is DMA all the way, with all the plus in terms of simplicity but the bad on the isolation aspects). If I wanted to caricature the situation: KVM is more simple to work with in terms of dev (you have results fast), but kind of "fuck security". Xen is hard from the dev perspective, because it's a more micro ke…
Comment linking /blog/2022/07/27/grant-table-in-xen/
on “New Xen updates on RISC-V”Submitted Xen and XCP-ng on Ampere Altra: ARM Demo at KubeCon as a story · 2 points
HN discussion
