I've deployed AD with DNS on a Windows Server 2008 R2 running on VirtualBox on a Ubuntu server 10.04LTS. The server runs like a charm, the only thing giving me "trouble" is DNS. When I use the Best Practices Analyzer ("Scan This Role") I keep getting the below error although the DNS role seems to be working just fine:
Title: DNS: DNS servers on Local Area Connection should include the loopback address, but not as the first entry. Issue: Tne network adapted Local Area Connection does not list the loopback IP address as a DNS server, or it is configured as the first entry
I followed the instructions on this page which basically explain how to configure DNS servers for your interfaces and advise not to use the loopback IP as a primary DNS. However this error seems to occur regardless of the configuration as I tried the following and always get the same error (I "Scan this role" between every change):
primary: 127.0.0.1 secondary: 192.168.16.1 (server IP) primary: 127.0.0.1 secondary: blank primary: 192.168.16.1 (server IP) secondary: 127.0.0.1 primary: 192.168.16.1 (server IP) secondary: blank
If I use an external DNS such as google DNS as a secondary
primary: 127.0.0.1 secondary: 18.104.22.168 (Google's DNS ip)
I get the below error (expected) although once again DNS requests to external domains are resolved fine:
The DNS server 22.214.171.124 on Local Area Connection did not successfully resolve the name_ldap.tcp.gc._msdccs.mydomain.local.
The server is running with the latest windows update (updated about 1 hour ago). Everything (DNS, AD, DHCP) seems to be working fine.
Q1: Should I worry about the first error I mentioned?
Q2: How can I get rid of this error?