VPS Guide: Your Go-To for VPS, Ubuntu & Command Line Success

Set Up Fail2ban with Find Time on Ubuntu

Category: VPS Setup

Adjust Fail2ban’s findtime on Ubuntu—install with

apt install fail2ban

then edit /etc/fail2ban/jail local with

nano /etc/fail2ban/jail.local

[sshd]\nenabled = true\nport = 22\nfilter = sshd\nlogpath = /var/log/auth.log\nmaxretry = 3\nfindtime = 120\nbantime = 600

Restart with

systemctl restart fail2ban

open SSH with

ufw allow 22

This bans after 3 fails in 2 minutes (120s) for 10 minutes (600s)—test with

ssh user@ip

check

fail2ban-client status sshd

On Linode this tightens SSH security—adjust findtime higher (e g 600s) if false positives occur ensuring MySQL and FTP uptime