Hi everyone!
I’m looking into self-hosting, and I currently have dynamic DNS set up to point to my home IP.
My question: is it worth getting a dedicated IP through a VPN?
I’m pretty technically savvy, but when it comes to networking I lack practical experience. My thought is that pointing my domain to a dedicated IP and routing that traffic to my home IP would be safer - especially if I only allow traffic on certain ports from that IP. Just curious if that idea holds up in practice, or if it’s not worth the effort.
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Why do firewall rules need to resolve FQDNs?
To resolve whatever hostname you’ve setup for ddns
Sorry, but I still don’t understand, what’s the need for that?
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.
What’s the need of the public IP in the firewall rules?
If OP needs a firewall rule to do any number of things that a firewall does.
I’m curious to know in which case is useful to know the public IP in a firewall rule because I’ve never used it.
An access rule for instance. To say to allow all traffic or specific types of traffic from a public IP address. This could be if you wanted to allow access to some media server from your friends house or something.
To allow access from a friend you need his public IP, not yours.