How to access another server on LAN through public dynamic DNS host name

[kevg]

I have a server (let's call it serverX) on my LAN serving HTTPS/443 and OpenWrt is configured to forward WAN port 443 to serverx on LAN 443. serverX periodically gets my WAN public IP and publishes it to a DNS A record (i.e. dynamic DNS) and let's say it's at host name serverx.example.com. I can access serverX from my laptop using its 192 IP address while on my OpenWrt LAN. I can also access serverX when I'm not on my home LAN by using serverx.example.com. However, I cannot access serverx.example.com while on my LAN. I tried forwarding LAN 443 traffic to the serverX IP, but that then of course broke accessing the OpenWrt console at 192.168.8.1 so I had to root in and update /etc/config/firewall to revert that.

How can I access another server's port 443 that's on my LAN through the public IP that then should be forwarded to that server?

[brada4]

nginx apache etc.
maybe it is better to dial vpn home if services are not public?

[DBAA]

Usually easier to resolve the domain name to the internal address when inside the network. Then it works even when the Internet is down and during external address changes.

Network -> DHCP and DNS -> DNS Records page, Hostnames page. Add an entry for the domain with the internal IP address.

[kevg]

Perfect, thanks! For me, it was Network } DNS } Edit Hosts
Works like a charm, thank you!