ipset list
list all names:
ipset list | grep Name
list information about NAME, including entries
ipset list NAME
add IP.ADD.RS.HERE/24 to the NAME of ipset.
ipset add NAME IP.ADD.RS.HERE/24
To remove an ipset added by **fail2ban**:
fail2ban-client set sshd unbanip IP.ADD.RS.HERE
- add to /etc/iptables/SETNAME to make persistent.