DNS record changes by itself

[Guest]

Hello,

I have a mixed Win2K3 Domain with 3 DNS servers two of which are still Win2K
all SPs on all servers.

I recently integrated my first Exchange 2K3 server and I assigned to it
(before installing Exchange) an IP address of 192.168.1.50.

Exchange is working fine and I have several mailboxes on then however on my
DNS servers the a record for the mail server keeps changing from 192.168.1.50
to 192.168.1.134; of course all my Outlook clients go bananas as soon as this
happens. I change it back and within half hour the record goes back to
192.168.1.134.

I've checked both NICs on the server and there is no doubt in my mind that
the correct IP address is on the server. Furthermore if I do an Ipconfig
/registerdns the server successfully register with the DNS servers but again
withing half hour it goes back.

I'm going insaaaaaaaaaneeeeee!!!!!!!


Thanks

 

[Kevin D. Goodknecht Sr. [MVP]]

Hello,

I have a mixed Win2K3 Domain with 3 DNS servers two of which are
still Win2K all SPs on all servers.

I recently integrated my first Exchange 2K3 server and I assigned to
it (before installing Exchange) an IP address of 192.168.1.50.

Exchange is working fine and I have several mailboxes on then however
on my DNS servers the a record for the mail server keeps changing
from 192.168.1.50 to 192.168.1.134; of course all my Outlook clients
go bananas as soon as this happens. I change it back and within half
hour the record goes back to 192.168.1.134.

I've checked both NICs on the server and there is no doubt in my mind
that the correct IP address is on the server. Furthermore if I do an
Ipconfig /registerdns the server successfully register with the DNS
servers but again withing half hour it goes back.

Both NICs?
Please verify, two NICs cannot have one IP address unless they are in a
bridge.
Post the ipconfig /all from Exchange.

 

[Guest]

Absolutely agree. Only one card has the ip address the other the cable is
umplugged. I would give you a config but i'm not near the server. Do you
apsolutely need it?

Thanks for the help

 

[Guest]

OK, here you go



Windows IP Configuration



Host Name . . . . . . . . . . . . : FMIMAIL

Primary Dns Suffix . . . . . . . : FMIINC.COM

Node Type . . . . . . . . . . . . : Unknown

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : FMIINC.COM



Ethernet adapter Local Area Connection 3:



Media State . . . . . . . . . . . : Media disconnected

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network
Connection #2

Physical Address. . . . . . . . . : 00-30-48-85-B6-53



Ethernet adapter Local Area Connection:



Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection

Physical Address. . . . . . . . . : 00-30-48-85-B6-52

DHCP Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : 192.168.1.50

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 192.168.1.1

DNS Servers . . . . . . . . . . . : 192.168.1.19

 

[Kevin D. Goodknecht Sr. [MVP]]

OK, here you go



Windows IP Configuration



Host Name . . . . . . . . . . . . : FMIMAIL

Primary Dns Suffix . . . . . . . : FMIINC.COM

Node Type . . . . . . . . . . . . : Unknown

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : FMIINC.COM



Ethernet adapter Local Area Connection 3:



Media State . . . . . . . . . . . : Media disconnected

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network
Connection #2

Physical Address. . . . . . . . . : 00-30-48-85-B6-53

You need to disable this NIC, unplugging it is not enough.

You might try searching the registry for the IP address.

 

[Guest]

OK, I actually found the problem. When i first loaded the server with the OS
it ofcourse picked up an address from my DHCP. For some reason even after I
gave the box a static ip, DNS continued to look back at the address in DHCP.

I deleted the lease in DHCP and barabin! it stopped doing it.

Thanks for the help