[isp-dns] Re: Relocatiing servers with minimum downtime

["Dave @ The Hostworks" <lists@thehostworks.com>]

Make the two MX servers identical, user/passes and everything
then switch the DNS and MX to the new server..

----- Original Message -----
From: <bacollins@...>
To: <isp-dns@isp-dns.com>
Sent: Tuesday, July 29, 2003 1:20 PM
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
----------------------------------------------------------------------
----------------------------------------------------------------------