ZeroTier (deprecated 2026-04)
Status: deprecated — do not use
Section titled “Status: deprecated — do not use”ZeroTier was decommissioned across all Eon-Labs infrastructure in early April 2026. The ZeroTier daemon is uninstalled from every workstation and the 172.25.x.x virtual subnet no longer routes anywhere.
The replacement is Cloudflare Tunnel + Cloudflare Access:
- SSH to el02 (Big Black) is gated by
ssh.ccmax.uk— you authenticate with GitHub SSO and Cloudflare issues a 3-minute SSH certificate. No keys to share, no virtual network to join. - The fleet dashboard is at
eon.ccmax.ukbehind the same GitHub SSO.
Current setup guide: SSH to el02 via Cloudflare Access
Why these files are still here
Section titled “Why these files are still here”The pages in this folder are kept for historical reference only — they document a system that no longer exists. They are demoted from the main navigation (sidebar.order: 998) but remain searchable so anyone landing on a stale link from chat history, old emails, or external bookmarks gets redirected here instead of a 404.
If you found this page by searching for “ZeroTier” or “172.25” while trying to set up access, stop and read the current guide above.
What was archived
Section titled “What was archived”ssh-and-zerotier-on-ubuntu.md— Ubuntu install + ZT join proceduressh-zerotier-network-to-littleblack-workstation-via-windows.md— Windows side of the same flow for the LittleBlack workstationzerotier-based-remote-machine-monitoring-from-ios-using-ish.md— iOS / iSH uptime monitoring via the ZT subnet