Unban IP from Fail2ban - jigneshpshah/greycube_helpmanual GitHub Wiki
To list Jails
sudo fail2ban-client status
To see Banned IPs in each Jail
sudo fail2ban-client status nginx-proxy
sudo fail2ban-client status sshd
To unban an IP
sudo fail2ban-client set (jailname) unbanip 192.168.0.1
sudo fail2ban-client set nginx-proxy unbanip 192.168.0.1
To check nginx access log
sudo tail -100 /var/log/nginx/access.log