DNS

I have 3 servers running Windows Server 2003. One is a DNS server the
other two are machines configured as web servers participating in a
web farm by using Network Load Balancing. Each of the web servers have
to network cards one for normal networking and the other for NLB.

The IP addresses are as follows:

NLB Cluster IP
192.168.4.65

DNS Server
192.168.4.25

Web Server 1
NIC 1
192.168.4.18
NIC 2 (NLB)
192.168.4.67
192.168.4.65 (Cluster IP)

Web Server 2
NIC 1
192.168.4.27
NIC 2 (NLB)
192.168.4.68
192.168.4.65 (Cluster IP)

Initially once things are configured everything works properly.
Pinging Web Server 1 with its machine name returns the address ending
in 18 and Web Server 2 returns 27. However, after some time a problem
with DNS begins. Pinging Web Server 2 starts to return the address
ending in 65. When I check the DNS Server it has three A records for
Web Server 2 which is for 27, 65 & 68. If I delete the 65 & 68 records
everything starts working fine but then later on the two records
appear again.

Why does this happen? Is there a way to prevent the 65 & 68 for Web
Server 2 records appearing in DNS?

"GiddyUpHorsey" <(E-Mail Removed)> wrote:
<snip for space>
> Why does this happen? Is there a way to prevent the 65 & 68 for Web
> Server 2 records appearing in DNS?

In Control Panel | Network Connections | Right-click the card you don't want
to register in DNS | Properties | TCP/IP | Properties | Advanced... | DNS
tab | and uncheck "Register the connection's addresses in DNS".

ThePro

Is REGISTER THIS CONNECTIONS ADDRESS IN DNS checked under advanced TCP/
IP settings on the nic you're using for NLB?

Are your DNS servers configured you use WINS for records it doesn't
have?

Those are the first 2 places I would look.

REGISTER THIS CONNECTIONS ADDRESS IN DNS is unticked. How can I check
whether the DNS server is configured for WINS?