Re: Dynamically block certain ip addresses

--On Saturday, October 27, 2018 4:19 PM +0200 Hans-Peter Jansen hpj@urpla.net wrote:

This might be interesting to be used within a fail2ban procedure later on.

While at it, what is the best practice to limit access to such a port like 15060/udp to a couple of sources?

Use an ipset rule. It's easy to add and remove lots of IP addresses without changing the firewall. fail2ban can also use ipsets within firewalld. I suggest asking on the fail2ban mailing list to see if someone has a suitable jail definition.