Following that page : https://blog.rimuhosting.com/2017/02/24/whitelist-your-own-computer-in-fail2ban/ it looks possible to whitelist a domain name instead of an IP.
However, nethserver’s UI (cockpit and server-manager) don’t accept FQDN. Is it wanted ?
That could really be useful to whitelist a dyndns address.
Also I’d like to know if Fail2ban takes the Trusted networks into account ? This can be useful for whitelisting the openvpn tunnelled traffic coming from a remote site.