DNS problem on Exchange

[Shaf]

Hi,

We installed a Windows 2000 DC on 1 server and Active Integrated DNS also on
the same server, for fault tolerance i installed an additional DC on the 2nd
Server with same Active Directory Integarated DNS on it also. Then I
installed MS Exchange 2000 Server on the 2nd DC, now active directory
replication worked fine on both servers. Once i connected the 2nd server to
my router and gave 1 Network Interface Card out of the 2 the public address
and public DNS and Default Gateway the replication between the 2 servers
stopped. Now I can send and recieve emails to and from other sites say
hotmail, but the replication between servers fails.
When i open Active Directory Sites and Services and click on replicate now
an error occurs saying "RPC Server is not available and there may be a DNS
lookup problem". The nslookup command shows the name of my ISPs DNS server.
Now if I just remove the external DNS address from 1 NIC replication works.
Hope this information is enough, please help me.

Regards
Shafiuddin

[Chris Scharff [MVP]]

On Mon, 23 May 2005 20:54:01 -0700, "Shaf"

Post by Shaf
Hi,
We installed a Windows 2000 DC on 1 server and Active Integrated DNS also on
the same server, for fault tolerance i installed an additional DC on the 2nd
Server with same Active Directory Integarated DNS on it also. Then I
installed MS Exchange 2000 Server on the 2nd DC, now active directory
replication worked fine on both servers. Once i connected the 2nd server to
my router and gave 1 Network Interface Card out of the 2 the public address
and public DNS and Default Gateway the replication between the 2 servers
stopped. Now I can send and recieve emails to and from other sites say
hotmail, but the replication between servers fails.
When i open Active Directory Sites and Services and click on replicate now
an error occurs saying "RPC Server is not available and there may be a DNS
lookup problem". The nslookup command shows the name of my ISPs DNS server.
Now if I just remove the external DNS address from 1 NIC replication works.
Hope this information is enough, please help me.

Keep the external DNS server information out of the TCP/IP properties.
Configure your DNS servers to perform referrals to the external DNS
server as necessary.