Security Basics mailing list archives
Security/Firewall question
From: Gregg <gbtech () citlink net>
Date: 29 Jul 2003 08:40:53 -0000
Hi everyone! I'm still pretty new to security and firewalls and such, and I'm having a problem wrapping my head around a couple of concepts. Here's what I have- I have a stand alone email server behind an Adsl router (with 4prt hub). The router is set to pass-thru (nat and firewall disabled). 1 port goes to a firewall device, and my LAN behind that. 1 port goes to my Email server, a Win2k box (hey, quit lookin at me like that). I've got a handful of fixed IP's to work with. Here's what I'd like to do- Keep everything the same BUT- put an OpenBSD box in between the router and the email server (protect the snivelling email server). So, I builts me dis purty OpenBSD box from the broken bodies of mine enemies past (a Dell Dim XPS V350 with a bad video card). Put 2 Nics in the beast. Lovely. Now, I have an IP from my block of 5 registered currently for my email server. I'm not certain if- I want to assign that IP to the OpenBSD firewall, and use NAT and/or RDR to pass on SMTP traffic on port 25 to the email server. Yes? No? Maybe? Am I a shame on my species? --------------------------------------------------------------------------- ----------------------------------------------------------------------------
Current thread:
- Security/Firewall question Gregg (Jul 29)
- RE: Security/Firewall question David Gillett (Jul 29)
- Re: Security/Firewall question Glenn English (Jul 29)
- Re: Security/Firewall question Terry Soucy (Jul 29)
- Re: Security/Firewall question Morton B. Maser (Jul 31)
- <Possible follow-ups>
- RE: Security/Firewall question Michael Dunn (Jul 29)
- RE: Security/Firewall question DeGennaro, Gregory (Jul 30)
- RE: Security/Firewall question Nick Nauwelaerts (Jul 30)