[Gllug] Question on mod_rewrite

[Doug Winter]

On Mon 22 Sep Simon Morris wrote:
> The idea is to use Apache to provide a reverse proxy in front of
> multiple webmail servers. When a user goes to
> http://webmail.domain.com/smorris Apache would take the username
> (smorris) and perform a LDAP lookup. Based on the result it would then
> reverse proxy the request to the correct backend server.

Are you not overcomplicating this?  You could probably come up with
something a lot simpler (assuming all you wish to do is balance load,
and you don't actually mind which server each users mailbox is on).

You could have 26 DNS aliases for servers, one for each letter of the
alphabet.  These could map to however many servers you actually have,
so:

    a.domain.com -> server1.domain.com
    b.domain.com -> server1.domain.com
    c.domain.com -> server2.domain.com

And then just use the first letter of their username to determine the
server to direct them to.  A bit of a kludge, but much more robust than
using a more complex database :)

doug.

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