Sort of OT: Totally changing IP addresses for mailserver and primary 
nameserverSharyn:

One other point as you have a Firewall in place. You might have to do some port 
mapping, so if a DNS query comes to the Firewall, then you should program the 
Firewall to pass it through to the appropriate server address. Same for SMTP 
and POP3, which in your case will be the same address as the DNS server.

It depends on what sort of Firewall you have - if its a combo Router/Firewall, 
then you'll have to do that. If its a standalone Firewall you might have to 
direct DNS and Mail calls to the servers if they are in the DMZ

Ted Daniels
  ----- Original Message ----- 
  From: Sharyn Schmidt 
  To: [email protected] 
  Sent: Monday, December 18, 2006 2:01 PM
  Subject: [IMail Forum] Sort of OT: Totally changing IP addresses for 
mailserver and primary nameserver


  Need to pick the brain's of the experts out there. 

  We are changing from a cable internet connection to a fiber one. The cable 
connection is staying in place, so we will actually have 2 internet connections 
at my main site. The cable one is going to serve as sort of a "guest/public" 
internet connection, whereas the fiber becomes our main connection

  We are getting an entirely new block of static IP addresses with our new 
fiber connection. I am going to need to change the IP address of both my 
primary nameserver (which I host here) and mail server (also hosted here) to 
reflect the new static addresses.

  I am unsure what is the best way/order to do this.The new connections will be 
totally independent of the old one, different firewalls, different switches, 
etc. My internal network will be attached to the firewall behind the new fiber 
connection.

  I'll check the IMAIL KB for the best way to handle this within Imail. My 
biggest concern is the best way to get the Internet aware of the change, and 
the timing involved.

  Suggestions are welcome. 

  TIA, 
  Sharyn 


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