DNS SERVER CONFIGURATION CHANGES 1

[arfjay]

We have 2 NT 4.0 servers both of which I think will be affected by Shaw [Internet provider] changing DNS servers. We have been given new Primary and Secondary FQDNs and DNS IPs. The new servers are ready to use and old ones will no longer be available after Midnight Feb 15th.

My questions are:
[1] Do I need to change the DNS settings? [I assume so, just checking].We use the Internet and email constantly from both servers.

[2] Where in the server do I change these settings? Specifically what program or service do I go into to do this?

Are there any little tricks or not obvious things I need to be aware of before I do this??

Any assistance in this regard would be appreciated.

Thank you

 

[Jpoandl]

I guess what is happening is that the ISP is upgrading thier systems or migrating the DNS servers for some reason.

For receiving email, I would think that you won't have to do anything. During the ISP's migration of DNS services (to the new servers), they will move your MX mail record automatically by themselves. However, you may want to call them just to be safe. The MX mail record should point to your internet address for your mail server.

If you are concerned about internal clients reaching the internet and being able to resolve DNS queries using the ISP DNS servers, you will have to make some changes to your ineternal network. If you have internal DNS servers, you will have to make sure that your modify the Forwarders tab (if MS) so that your internal DNS servers forward to the NEW ISP DNS servers.

If you don't have an internal DNS server, you are probably using a router or a DHCP server to point DNS to the ISP DNS servers. You will have to modify the scope (if DHCP) so that clients point to the new DNS servers.

Joseph L. Poandl
MCSE 2003

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[rdroske]

Assuming these machines are not getting IP information from DHCP (at least one of the almost definitely isn't because it is probably the DHCP server itself) you will need to change the DNS addresses on them.

Go to Control Panel/Network/Protocols Select TCP/IP and Properties and you will see the DNS tab. Just select the existing ones and edit them.

If one of these is your DHCP server (you will have DHCP Manager listed under Programs/Administrative Tools) you will need to change the DHCP option which is used to give out DNS server addresses to all of your DHCP clients.

I'm not sitting at a DHCP machine so I can't give that to you exactly but if you have a problem with that post again.

 

[arfjay]

Thank you rdroske - that was it. I just changed the DNS Ips and everything was fine. We don't use DHCP.

Again Thank you