Firewall Wizards mailing list archives
Re: IMAP- how to protect a server?
From: "Ge' Weijers" <ge () progressive-systems com>
Date: Thu, 3 Jun 1999 10:58:12 -0400
On Tue, Jun 01, 1999 at 06:28:56PM -0700, Aaron D. Turner wrote:
The thing is that we consider are trying our best to secure the email from would-be unfriendlies, and I'd rather not have the mail folders sitting in the DMZ. And of course, I don't want to punch a hole through the firewall and put the IMAP server on the internal network. NFS between a IMAP server in the DMZ and the mail folder server in the Internal net isn't a good idea either. So what is the 'proper' way of doing this?
If you don't put your e-mail server on a DMZ you will have to punch some kind of hole through your firewall, which forces you to put all your eggs in the SSL basket. I would advise against that, I prefer not to completely trust a protocol that complicated. My approach would be to have a separate DMZ for this purpose, which protects your internal network from compromise if your IMAP server is breached, and your IMAP server from attacks and password sniffing if your web server gets broken in to. The resources that are accessible through SSL are now limited to e-mail. You can allow internal access through unencrypted IMAP or POP3. As a second line of defense you might want to educate people about encrypting their sensitive e-mail, even intra-office e-mail. Ge' -- - Ge' Weijers Voice: (614)326 4600 Progressive Systems, Inc. FAX: (614)326 4601 2000 West Henderson Rd. Suite 400, Columbus OH 43220
Current thread:
- IMAP- how to protect a server? Aaron D. Turner (Jun 02)
- Re: IMAP- how to protect a server? jacob carlson (Jun 03)
- Re: IMAP- how to protect a server? Ge' Weijers (Jun 03)
- Re: IMAP- how to protect a server? Aaron D. Turner (Jun 03)
- Re: IMAP- how to protect a server? chuck (Jun 04)
- Re: IMAP- how to protect a server? Aaron D. Turner (Jun 03)
- <Possible follow-ups>
- Re: IMAP- how to protect a server? Steven M. Bellovin (Jun 04)
- RE: IMAP- how to protect a server? sean . kelly (Jun 14)
- RE: IMAP- how to protect a server? Mayne, Peter (Jun 14)
- Re: IMAP- how to protect a server? Carric Dooley (Jun 14)
- Re: IMAP- how to protect a server? Ge' Weijers (Jun 14)
- Re: IMAP- how to protect a server? Aaron D. Turner (Jun 14)
- Re: IMAP- how to protect a server? Ge' Weijers (Jun 14)
- IMAP who provides CERT support (was Re: IMAP- how to protect a server?) chuck (Jun 14)
- Re: IMAP- how to protect a server? Ge' Weijers (Jun 14)