Blog
Notes from production
The Yamiru blog is where Viktor "Yamiru" Vasko writes up Linux server administration, security hardening and game server hosting: drawn from 11+ years of real incidents, not theory.
2023-08-27
Securing a Linux Server with Fail2Ban and a Custom SSH Port
A plain-language walkthrough for locking down SSH on a fresh Debian or CentOS box: what SSH actually is, why bots keep knocking on it, and how moving the door and hiring a bouncer (Fail2Ban) fixes it.