Hi
database->auth->realmlist, address-should use external IP or DNS, internalAddress-local IP of the host machine
bnetserver.conf of the repack, loginRest.localAddress-internal Ip, loginRest.externalAddress-the external one or DNS
what is in the bnetserver.conf should be aligned with what's in the realmlist table in the auth DB
ports used and to be forwarded-1119, 8081, 8085, 8086-default ports
config.wtf(might be under a different name under some patched wow.exe(s) )
localhost is mandatory for local play, but when playing online-if the server is hosted on a pc on the same network-use internal IP, if the host PC is on another network, then use External Ip or DNS to connect
at least this was the guide for Legion and DF, not sure if things were exactly the same for WoD Core 6.2.3
not sure but now I remember someone mocking it for being unable to play online but not quite sure if it was this repack or 6.2.3 WoW