I have asked this question before but was not able to get a solution; I am providing a background of my network environment.
Host Name. . . . . . . . . : ec3global.com (I have deployed server2003 standard edition)
IP Address . . . . . . . . : 192.168.0.10
Subnet Mask. . . . . . . . : 255.255.255.0
Default Gateway. . . . . . : 192.168.0.1
Dns Servers. . . . . . . . : 188.8.131.52
184.108.40.206(These two DNS addresses are my ISP addresses so i have added them in the forward lookup zone, also i am going to add one more domain(Qtic.com) on the same server so do i to configure forward lookup zone again, right now the DNS that i am using internally is 192.168.0.10)
When I run dcdiag, it passed all the test except the trust relationship test and IP security test, and when i tried to connect the second server would be exchange server 2007 it gave an error that RPC server unavailable, i think that has to do with trust relationship, and there is something wrong in my DNS configuration.
i tried to nslookup on ec3global.com it gave me a message that "Cant find server name for address 192.168.0.10: Non -existent domain.
Why its giving a message that its a non existent domain, and what are the recommendations for my DNS, for my first domain as well as for the second domain, and what are the recommendations for exchange server 2007 means what server applications do I have to install on it. I.e. DNS, DHCP, Active Directory.