Hi,
At 07:11 PM 1/2/03 -0800, Roger Thomas wrote:
dear all,
i have 2 servers that were *given* to me to setup and implement webmail
solution for our client. i have done some groundwork in terms of the
backend
applications that are needed to do this.
This doesn't have much to do with PHP. In fact it can probably be done
without PHP.
The ideal setup depends on your situation. How many domans? How many
users? How much email?
If you have multiple domains, I suggest you look at
http://inter7.com/freesoftware/
They have a complete package to manage multiple virtual domains on a
Qmail
server using only one system user. I've been using it for a couple
years,
with good luck. There is an active development effort
If I was going to setup two machines as mail servers, I would put half
the
users on each, with all the programs running on both. Then I would setup
MX records so that each server backed up the other, collecting email for
later delivery if the other server is down.This way if one of the
machines goes down, half your users still get mail, and the messages for
the other half are queued on the remaining server.
I think it would be more efficient putting all the users on one box, with
it
hd doing raid, and the other box doing the processing.
so, if something happens on my storage server (the one who has the mails) i
would just need to replace the server (or one of the hd's) reducing time
response. And if i need more processing (lets say, i get 100% more visits
than when i builded this), i would just need to add another proc server and
do load balancing trough DNS.
To share the mail data you may use NFS.
Be sure to keep a backup copy of one machine's configuration on the
other. You should have everything you need to re-build a dead server on
the other machine. If you put the user mailboxes and mail queue on
separate hard drives you can pop that drive from one machine to another
very quickly.
You can run Apache on the mail server to manage email accounts, and for
webmail, but keep all non-mail related web services off of it. You don't
want all the web developers logging on to the mail server.
Maybe running all the services in one server wont be a problem if you
configure all the system properly, your developers may need to read mails
from console for development reasons anyways.
I think that maybe you could put the POP3 server on the storage and
SMTP/HTTP on the proc server. It deppends on the hardware of the two boxes
and the amount of users that will use the system.
Rick
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Excuse my english.
Jou.
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