Latest / Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Secure Linux Server SSH with Key-Based Authentication and Hardening
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into SSH key-based authentication and server hardening. They walk through generating Ed25519 key pairs, disabling password authentication, configuring sshd for key-only access, and implementing fail2ban to block brute-force attacks. The discussion covers practical steps like using ssh-copy-id, setting proper permissions on ~/.ssh, and testing configurations safely. Lucas explains why Ed25519 keys are preferred over RSA for modern servers, and Luna shares a real-world case where a client's server was compromised due to…
The skinny
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