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Re: LVS'ing mail

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: LVS'ing mail
From: Horms <horms@xxxxxxxxxxxx>
Date: Mon, 18 Sep 2000 14:36:39 -0400
On Sun, Sep 17, 2000 at 05:26:15PM -0500, David D.W. Downey wrote:
> 
> 
> Got a question. How would you set up mail in an LVS cluster? I'm
> considering putting a mixed base of mail servers into this cluster. They
> will be sendmail and Exchange Server servers. Does LVS lend itself to
> this?
> 
> One of the concerns I have is about mail loss. Example...
> 
> dover.com sends email to mydomain.com which is using the LVS'd mail
> servers. 1) would mail loss result from being sent to various mail hosts
> by load balancing? (I don't think they'd actually be lost, just split
> accross the various servers based on the algo used) 

That would depend on how your mail servers are set up, but basically
the answer is no.

> 2) How would you
> instruct your users to get their mail? (Especially if the incoming
> messages ARE split accross the servers.) 3) Are there any other issues I
> should be looking at? If I am correct, I would only list the VIP for the
> virtual mail server in the MX record. Correct?

For a discussion of how this can be done please see

http://vergenet.net/linux/mail_farm/

-- 
Horms


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