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LVS'ing mail

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: LVS'ing mail
From: "David D.W. Downey" <david.downey@xxxxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 17 Sep 2000 17:26:15 -0500 (CDT)

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) 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?

-- 
David D.W. Downey
Systems Administrator
RHCE, CUA/CLA
Internet Security Specialist
QIXO.com




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