Manage multiple Linux servers: tools that work
SSH config, tmux, Ansible, Uptime Kuma, Zabbix and Webmin, ranked by how many servers you have: what each replaces, setup cost in minutes, the one gotcha.
#ssh
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Fail2ban on Ubuntu 24.04: stop SSH attacks
Install and configure Fail2ban on Ubuntu 24.04 to ban brute-force SSH attackers at the firewall: verify the stock jail, tune bans, recover from lockout.
Run Claude Code on a remote VPS with tmux
Run Claude Code on an always-on Linux VPS inside tmux so agent sessions survive a dropped SSH connection. Install, harden, and the failure modes to expect.