Install on local drive

Start with installing it.  sudo apt install fail2ban 
 Is it running? systemctl status fail2ban 
 what is fail2ban doing right now? sudo fail2ban-client status 
 Copy the config file in the OS cd /etc/fail2ban sudo cp jail.conf jail.conf.local    Fail to ban will not overwrite the .local file and will also prefer to use it over the .conf 
 Edit config file     - edit: `ignoreip =`  and IP address you always want to be allowed `192.168.1.103/24 192.168.1.129/24` or something like that.     - `bantime =` keep this at 10 minutes 
 Ban or Unban an IP address sudo fail2ban-client set sshd banip 192.168.1.1 sudo fail2ban-client set sshd unbanip 192.168.1.1