A fail2ban wrapper for easier management and listing of banned IP's in your jails.
Requires fail2ban to be installed and running. Should work on most Linux distributions.
Developed against fail2ban version 0.11.2 on Ubuntu 22.04.4 LTS using nvim.
curl https://raw.githubusercontent.com/ivuorinen/f2b/main/f2b > f2b
chmod +x f2b
./f2b versionRequiements: fail2ban (duh), and few other default tools.
awk, cat, date, grep, ls, sed, sort, tail, tr, wc, and zcat should be installed.
Those are usually installed by default on most Linux distributions. The script will tell you if something is missing.
If running commands straight from the internet scares you (as it should) you can open the f2b script in your favourite editor (or here in GitHub) and view the source.
I promise I'm not doing anything weird in the script.
It uses several fail2ban commands to get the information it needs, so it needs to be run as root.
Usage: f2b [command] [options]
list-jails List all jails
status all Show status of all jails
status [jail] Show status of a specific jail
banned Show all banned IP addresses with ban time left
banned [jail] Show all banned IP addresses with ban time left in a jail
ban [ip] Ban IP address in all jails
ban [ip] [jail] Ban IP address in a specific jail
unban [ip] Unban IP address in all jails
unban [ip] [jail] Unban IP address in a specific jail
test [ip] Test if IP address is banned
logs Show fail2ban logs
logs all [ip] Show logs for a specific IP address in all jails
logs [jail] Show logs for a specific jail
logs [jail] [ip] Show logs for a specific jail and IP address
logs-watch Watch fail2ban logs
logs-watch all [ip] Watch logs for a specific IP address
logs-watch [jail] Watch logs for a specific jail
logs-watch [jail] [ip] Watch logs for a specific jail and IP address
test-filter [filter] Test a fail2ban filter
service start Start fail2ban
service stop Stop fail2ban
service restart Restart fail2ban
help Show help
version Show version