{
  "id": 12903270,
  "title": "The history of the Hetzner Cloud network stack",
  "url": "https://urgent.news/2026/10/08/the-history-of-the-hetzner-cloud-network-stack",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-08T15:02:28.000Z",
  "source": {
    "name": "Lobsters",
    "slug": "lobsters",
    "url": "https://www.hetzner.com/blog/the-hetzner-cloud-network-stack-history-and-technical-overview/"
  },
  "original_language": "en",
  "account": "Hetzner Cloud network stack has evolved over the years to provide versatile and reliable connectivity options for customers and their customers. Initially, Hetzner used HDDs, native Linux bridges, and static routes for vServers launched in 2011. Later, in 2015, a hyper-converged Ceph-based setup with dynamic routing via BGP and Linux bridge setup using 1:1 NAT for IPv4 and IPv6 was introduced. In 2019, an Open vSwitch-based data plane was added, followed by the migration of the public network to Open vSwitch in 2020. Important network stack parts are running on VM hosts, providing stability, flexibility, and the ability to contain the blast radius to a single host in case of errors. The network stack includes features such as Firewalls, Private Networks, DHCP servers, and metadata servers. These services ensure Internet reachability, private network traffic encapsulation, and access control to services available from the Internet. The VM hosts run Open vSwitch, a versatile networking solution that uses OpenFlow to configure the data plane of network devices.",
  "summary": null,
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}