Because you’re not going to setup any rules pointed to a dynamic public IP address. Otherwise you’re going to be finding a way to change the rule every time the ip changes.
The ddns automatically updates an A record with your public IP address any time it changes, so yeah the rules would use the fqdn for that A record.
VelociCatTurd@lemmy.world 1 month ago
To resolve whatever hostname you’ve setup for ddns
peregus@lemmy.world 1 month ago
Sorry, but I still don’t understand, what’s the need for that?
VelociCatTurd@lemmy.world 1 month ago
Because you’re not going to setup any rules pointed to a dynamic public IP address. Otherwise you’re going to be finding a way to change the rule every time the ip changes.
The ddns automatically updates an A record with your public IP address any time it changes, so yeah the rules would use the fqdn for that A record.
peregus@lemmy.world 1 month ago
What’s the need of the public IP in the firewall rules?