On March 14, 1999, Ethan Galstad released NetSaint 0.0.1. He thought about a dozen people would care. It pinged hosts, ran plugins, sent email and pager alerts when a service went down — and again when it recovered. In 2002, the name became Nagios: “Nagios Ain’t Gonna Insist On Sainthood,” hagios = saint, … Read more
On April 29, 2005, two Linux developers in Vienna, Dietmar and Martin Maurer, released Proxmox Mail Gateway and registered the GmbH. Three years later came Virtual Environment: OpenVZ + KVM, a browser, Debian. In 2026, Proxmox VE 9.2 (May 21) runs kernel 7.0, QEMU 11, and LXC 7 … Read more
XCP was the free XenServer ISO. Citrix opened up the product in 2013, and XCP died on the wiki. In 2017, the Free edition lost live storage, dynamic memory, and GPU features. Olivier Lambert of Vates launched a Kickstarter, called it XCP-ng — next generation — and on March 31, 2018, released 7.4. The … Read more
XenServer is the product. Xen is the hypervisor. The confusion has lasted nineteen years: XenSource packages Cambridge’s work, Citrix buys it for half a billion, renames it Citrix Hypervisor, private equity restores the name, and in July 2026 XenServer 9 becomes “Citrix” again and supports every kind of workload — not just desktops. … Read more
In 2003, a hypervisor emerged from Cambridge’s Computer Laboratory and changed how servers were divided up. Xen — type 1, GPLv2, paravirtualization — became the foundation of Amazon EC2, Rackspace, and later Qubes OS. In 2026, Xen Project 4.21 is still the core of XenServer, XCP-ng, and a … Read more
On January 15, 2007, a GmbH in Weinstadt, Germany, released the code of the hypervisor it used with government and banking customers. The product was called VirtualBox. Within a year, it exceeded four million downloads; in February 2008, Sun bought Innotek; in January 2010, Oracle arrived. Nineteen years … Read more
Update (11 September 2026): CXMT published technical details and stated that LPDDR6 has already made its commercial debut in the Xiaomi 18 Fold. The text below separates this company confirmation from performance promises and broader industry conclusions. CXMT (ChangXin Memory Technologies) has put its LPDDR6 into production and claims that … Read more
Moving a VM from VirtualBox or VMware to XCP-ng (or XenServer) usually becomes a ritual: export OVA, convert the disk by hand, and wrestle with xe. ova2xva is a Go CLI (MIT) that handles the trip in both directions in a single binary — converting an OVA or standalone disk … Read more
A server without monitoring only tells you it is down when someone complains. With Node Exporter, each host exposes Linux metrics; Prometheus collects and stores them as time series for queries and alerts. This guide uses Ubuntu packages where available, avoids exposing metrics to the internet, and validates each step before continuing. The … Read more
Puppet describes the machine’s desired state — a package installed, a service running, a file with specific contents — and the agent turns the difference into action. You do not write “how to install nginx on this distribution”; you specify that nginx … Read more
