You want to split your domain so it resolves to a private IP internally and a public IP externally. So, your internal DNS server should return internal IPs.
Some routers will allow you to reach the external IP from inside your network, some may not. Mine currently does which is great (I can access www.example.com which resolves to my external IP address and it is forwarded as though I were outside my network).
What I do is register public domains on "example.com" and I have a sub-domain for internal IPs (home.example.com). My local DNS server responds for home.example.com and forwards for the rest.
This makes it clear to me which address I will be getting. And since all my public web traffic goes through a reverse-proxy it lets me also have a name for the server itself. e.g. "music.example.com" may go through the reverse proxy for my music server, but "music.home.example.com" resolves to my music server directly. So I can use the latter for ssh and other things.
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| DHCP | Dynamic Host Configuration Protocol, automates assignment of IPs when connecting to a network |
| DNS | Domain Name Service/System |
| IP | Internet Protocol |
| NAT | Network Address Translation |
4 acronyms in this thread; the most compressed thread commented on today has 9 acronyms.
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