Strange DNS problem for which I hope you can help.
Active Directory with NETBIOS name "Shortdomain" and as FQDN "verylongdomainname.lan". Domain controller DC01 behind firewall. IP: x.x.x.1
Customer site, connected over VPN. Customer has local DNS Server. On their DNS Server I wanted to create a new conditional forwarder zone. In DNS manager I enter "verylongdomainname.lan" and when I enter IP x.x.x.1 I first get a timeout but after the timeout it shows the NETBIOS name "Shortdomain" where I would have expected the FQDN name for the server. I then click OK and the zone is added.
On any server in customer site, I fail to resolve any server in "verylongdomainname.lan", but when I start nslookup and then run the command "Server x.x.x.1", I successfully connect to the DNS server and I am then able to resolve all server names in the "verylongdomainname.lan" domain. To me this proves routing and firewalling is permitting a connection from customer to DNS Server x.x.x.1. Correct ???
Any idea why the conditional forwarding is not working and how to fix it?
From the command line:
command: nslookup result: y.y.y.5 command: server1.verylongdomainname.lan result: domain not found command: server x.x.x.1 result: server (x.x.x.1) command: server1.verylongdomainname.lan result: server1.verylongdomainname.lan x.x.x.7 (which is correctly resolved)