ssh-book.com
ssh-book.com is a live English-language website hosted on Hetzner Online GmbH (AS24940) in Germany, served by Nginx. cl0q first saw it on 2026-09-16 and last crawled it on 2026-09-16. It resolves to 188.40.133.162 and has mail (MX) records set up. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
OpenSSH in Production: Trust, Access, Forwarding, and Failure Analysis
OpenSSH in Production is a source-grounded guide to OpenSSH 10.4: host trust and rotation, certificates and KRLs, authentication policy, forwarding and multiplexing internals, fleet policy, and a troubleshooting method built on discriminating observations. Coming soon from Sysinit Press. By Wolfgang Kerschbaumer.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-09-16 |
| Last crawled | 2026-09-16 |
| IPv4 | 188.40.133.162 |
| IPv6 | 2a01:4f8:221:1dc7::162 |
| Network | AS24940 Hetzner Online GmbH · Germany |
| Mail (MX) | mail.sysop.cafe |
| Language | en |
| Server | nginx |