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Re: Secondary Mail Server



----- Original Message -----
From: Mike Burger <mburger bubbanfriends org>
To: General Red Hat Linux discussion list <redhat-list redhat com>
Sent: Tuesday, March 16, 2004 3:28 AM
Subject: Re: Secondary Mail Server


> First, you need to tell that new machine that it needs to accept mail for
> the same domains, and that it should forward it to the primary mail
> server, when available.
>

I believe this is a false solving. By doing this you will make one of the
servers dependant of the other so this is not a *true* backup solution.
Someone asked once a similar question concerning backup MySQL servers (wich
by the way I haven't solved yet but I didn't do anything to solve it also...
I think that the answer should lye in the server software, but - start a new
thread if you like... :))) ). Anyway such solutions should reside either at
dns level and should be something like the bgp routing (if one route goes
down use alternate) or in a software on the alternate mail server that
should check if the primary is down and if so to update its network and
naming configuration to reflect changes. I believe even a bash script might
be enough for such a task.
Lets talk some more... :)

> Second, you need to set up a second MX record in your DNS zone, with a
> higher number than the primary MX, so that the world knows where to try to
> send mail when the primary MX is down.
>
> On Mon, 15 Mar 2004, Nilesh wrote:
>
> > Hello
> >
> > Can anyone please tell me how to create Secodary Mail
> > Server out of our premisess.
> > if the main server is down so mail drop down on
> > secondary server
> > I have installed Sendmail + DNS on the same machine
> >
> > Thanks
> > Nilesh
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Mail - More reliable, more storage, less spam
> > http://mail.yahoo.com
> >
> >
> >
>
> --
> Mike Burger
> http://www.bubbanfriends.org
>
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>
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> -------------------------------------------------------
> Connex scaneaza automat toate mesajele impotriva virusilor folosind RAV
AntiVirus.
> Connex automatically scans all messages for viruses using RAV AntiVirus.
>
> Nota: RAV AntiVirus poate sa nu detecteze toti virusii noi sau toate
variantele lor.
> Pentru a inlatura efectele nedorite si din dorinta de a va oferi in
permanenta servicii
> de cea mai buna calitate mesajele detectate ca fiind infectate vor fi
sterse automat .
> Va rugam sa luati in considerare ca exista un risc de fiecare data cand
deschideti
> fisiere atasate si ca MobiFon nu este responsabila pentru nici un
prejudiciu cauzat de
> virusi.
>
> Disclaimer: RAV Antivirus may not be able to detect all new viruses and
variants. In
> order to remove  unwanted effects and to continuously provide quality
services all
> infected e-mails will be automatically deleted .Please be aware that there
is a risk
> involved whenever opening e-mail attachments to your computer and that
MobiFon is not
> responsible for any damages caused by viruses.
>


-------------------------------------------------------
Connex scaneaza automat toate mesajele impotriva virusilor folosind RAV AntiVirus.
Connex automatically scans all messages for viruses using RAV AntiVirus.

Nota: RAV AntiVirus poate sa nu detecteze toti virusii noi sau toate variantele lor. 
Pentru a inlatura efectele nedorite si din dorinta de a va oferi in permanenta servicii 
de cea mai buna calitate mesajele detectate ca fiind infectate vor fi sterse automat .
Va rugam sa luati in considerare ca exista un risc de fiecare data cand deschideti 
fisiere atasate si ca MobiFon nu este responsabila pentru nici un prejudiciu cauzat de 
virusi.

Disclaimer: RAV Antivirus may not be able to detect all new viruses and variants. In 
order to remove  unwanted effects and to continuously provide quality services all 
infected e-mails will be automatically deleted .Please be aware that there is a risk 
involved whenever opening e-mail attachments to your computer and that MobiFon is not 
responsible for any damages caused by viruses.




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