Hello everyone im a Senior Executive at XO this is my first day we offer
many many different Telecommunication Products for ISP's please feel
free to 
Email or call me anytime if you have questions.


John M. Glover
XO Communications
Sr. Executive Consultant
321.281.1034 office
321.436.5469 cell
john.m.glover@...



-----Original Message-----
From: bacollins@..."mailto:bacollins@...">mailto:bacollins@...Sent: Wednesday, July 30, 2003 8:09 AM
To: isp-dns@isp-dns.com
Subject: [isp-dns] Re: Relocatiing servers with minimum downtime

We recently purchase an ISP and its subs. It was running its own mail 
server and now I want to migrate the users to ours. We control the
domain 
name and we run our own DNS. 

Migrating the users is not the issue. Mine is along the same lines as 
Bhavin. Right now the MX record points to the old server. What is the
best 
way to do the swap and minimize problems. 


Bruce "Hoss" Collins





Len Conrad <LConrad@...>
07/26/03 08:39 AM
Please respond to isp-dns

 
        To:     isp-dns@isp-dns.com
        cc: 
        Subject:        [isp-dns] Re: Relocatiing servers with minimum
downtime



>I have to relocate my mail servers from one network to another in the 
same
>city.

The easiest is to have somebody give you backup MX support where the 
backup  MX has a queue lifetime longer than the relocate time, say 1
day.

With the backup MX in place:

1. A day before the move, shorten the DNS MX hostame's A record to 1
hour, 

to minimize the effect of cached stale records.

2. On the day of the move, change you DNS MX hostname's IP from old to 
new, 
also with 1 hour TTL, essentially making the old machine off-line.  Mail

goes to backup MX.

3. move the mailbox server, put it on-line at MX hostname new IP.

4. backup MX will unload stored mail on the old mailbox server at the
new 
IP.

5. put your MX hostname's A record TTL back to 1 day.

Len


_____________________________________________________________________
http://MenAndMice.com/DNS-training: London; Chicago; San Jose; Wash DC
IMGate.MEIway.com: anti-spam gateway, effective on 1000's of sites, free


------------------------ANNOUNCEMENT---------------------------------
---------------------------------------------------------------------
           ISPCON FALL 2003 - Santa Clara Convention Center
     October 20-22 - The Definitive Event Wired and Wireless ISPs
                            www.ispcon.com
----------------------------------------------------------------------
----------------------------------------------------------------------


______________ 

 ______________








------------------------ANNOUNCEMENT---------------------------------
---------------------------------------------------------------------
           ISPCON FALL 2003 - Santa Clara Convention Center
     October 20-22 - The Definitive Event Wired and Wireless ISPs
                            www.ispcon.com
----------------------------------------------------------------------
----------------------------------------------------------------------


______________ 

 ______________




------------------------ANNOUNCEMENT---------------------------------
---------------------------------------------------------------------
           ISPCON FALL 2003 - Santa Clara Convention Center
     October 20-22 - The Definitive Event Wired and Wireless ISPs
                            www.ispcon.com
----------------------------------------------------------------------
----------------------------------------------------------------------