troubleshooting Question

Cannot see public domain from linux host on SBS domain

Avatar of Mark
Mark asked on
Linux NetworkingSBS
6 Comments1 Solution598 ViewsLast Modified:
I have 2 linux hosts on a LAN: webserver, ohprsstorage. The SBS2008 domain controller is also the LAN DNS server. The local Windows domain name is hprs.local. The public domain is ohprs.org. The domain controller's LAN IP Is 192.168.0.2. Both Linux hosts have this IP configured in the /etc/resolv.conf file.

On Linux host ohprsstorage, I can look up linux host webserver on the local domain:

 $ nslookup webserver
Server:         192.168.0.2
Address:        192.168.0.2#53

Name:   webserver.hprs.local
Address: 192.168.0.3

$ nslookup webserver.hprs.local
Server:         192.168.0.2
Address:        192.168.0.2#53

Name:   webserver.hprs.local
Address: 192.168.0.3

However, I cannot look up the webserver's public FQDN:

 nslookup webserver.ohprs.org
Server:         192.168.0.2
Address:        192.168.0.2#53

** server can't find webserver.ohprs.org: NXDOMAIN

If I specify an external DNS (not the domain controller) I can look up the public FQDN:

nslookup webserver.ohprs.org 8.8.8.8
Server:         8.8.8.8
Address:        8.8.8.8#53

Non-authoritative answer:
Name:   webserver.ohprs.org
Address: 64.129.23.95

I can also successfully do this from any external host (which the reader can verify). What is wrong? Why can my linux hosts *NOT* lookup the ohprs.org public domain? I'm suspecting a problem with the SBS2008 DNS server setup as I believe it must be its job to resolve these domain names.
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