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

Configure Fail2ban with IP Whitelist on Ubuntu

Category: VPS Setup

Whitelist IPs in Fail2ban 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 = 5\nbantime = 3600\nignoreip = 192.168.1.100 10.0.0.1

Restart with

systemctl restart fail2ban

open SSH with

ufw allow 22

Test from a non-whitelisted IP—check

fail2ban-client status sshd

for bans while 192 168 1 100 stays unbanned On Linode this protects MySQL and FTP—verify with

fail2ban-client get sshd ignoreip

ensuring uptime for trusted IPs