Hi Henrique (and anyone else who understands Murder),
Let me rephrase what I am trying to accomplish. Maybe Murder isn't the way to go...
1. I have a small, internal LAN that I want to keep protected, by blocking all unsolicited traffic (block all incoming ports to protect from port scanners/sniffers/hackers/worms). This LAN will contain a Private File/Mail Server running SuSE SLES9 - Postfix and Cyrus. All email access for our company is through IMAP - we haven't used or allowed POP access for a long time, and our Reps love having access to all of their email from anywhere.
2. We will also, for the first time, be bringing our Web and Email hosting in house, so we will have a second, Public Web/Mail server also running on SuSE SLES9 (Postfix/Cyrus).
3. In our business, we deal with a lot of binary attachments (jpegs and PDFs mostly, some fairly big), so, for performance reasons (I want our email sessions, which up to now have been slow - sometimes *excruciatingly* slow - to be very fast), when employees are physically in the office, I want them to only talk to the internal, Private IMAP server over the gigabit switch (ie, not have to have 30+ employee IMAP sessions all jammed through a single, 10/100 firewall port to talk to the Public IMAP server).
4. For Security purposes, whem employees are physically *outside* the office (accessing from the internet), I want them to only talk to the Public Mail/IMAP server.
So, to summarize, we will have two Cyrus IMAP servers, one Public, one Private. Most employee access will be from the internal, office LAN, but with occasional access from the internet (home, vacation, etc), so the Mailboxes on both servers must be kept in sync. Short delays (up to a few minutes) in the sync process are acceptable.
What is the best way to accomplish this?
Many thanks for suggestions,
Charles --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
