DNS problem on Exchange

Shaf · Joined: 06 Aug 2007 Posts: 1

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

Archived from group: microsoft>public>exchange2000>realtime>collaboration

Chris Scharff [MVP] · Joined: 05 Aug 2007 Posts: 6

On Mon, 23 May 2005 20:54:01 -0700, "Shaf"
hired a team of monkeys to write:

>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.

--
Chris Scharff
Messaging Services Architect
MessageOne

Business Continuity That Makes Business Sense
http://www.messageone.com/email-continuity/

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