Firewall Wizards mailing list archives
Re: Configuring a firewall under Unix
From: chuck yerkes <fwwiz () yerkes com>
Date: Thu, 3 Jun 1999 18:08:57 -0700
There are some firewall books - OReilly's has a practical one, and Cheswick and Bellovin have the more theoretical one. The latter was THE documentation of good principles. Steven's and Comer's (pick one set) TCP/IP books are good to know. Design and Implemenation of 44BSD is an interesting read. There are lists. Greatcircle has the large one, hit their majordomo server for it. You can put a toolkit in, you can setup ipfilter. Now you have proxies and filtering on an unsecure machine. I've said it before. To build and run a secure firewall you need to know the operating system really, really well. In your case, FreeBSD (me? I lean towards Openbsd). But either way, you have to know the system and Unix really thoroughly. Can I emphasize it more? I'd expect my admins to be able to rewrite all the rc files from memory (or come close). It's easy to build a box that sort of looks like a firewall, but WHOA! there's a big ass hole because you don't know that rpcs were still running and your rpc server proxies for you (how nice). What's an RPC? Go buy a vendors firewall. Wanna learn? Well, you'll make mistakes. Don't bet the farm on what you build for the first couple years. Once you really know what you're doing, say after a year or so, then you are at the beginning. chuck Quoting David Rainville (lrainville () yahoo com):
Hi everyone! I'm sure glad to be registered to this mailing list! Everyone is very clever! I just started the unix World a few months ago and decided to put my FreeBSD box on the internet. But before doing this, I decided to protect myself against the outside malicious world so I decided to install a firewall. My question is .. is there someone or a doc file which explains how to configure from a to z a firewall including the program installation? Any config example is welcome.. linux or freebsd.. I have two boxes.. Thank you in advance! David Rainville lrainville () yahoo com _________________________________________________________ Do You Yahoo!?
No, in fact I don't.
Current thread:
- Configuring a firewall under Unix David Rainville (Jun 03)
- Re: Configuring a firewall under Unix dreamwvr (Jun 04)
- Re: Configuring a firewall under Unix chuck yerkes (Jun 04)
- <Possible follow-ups>
- RE: Configuring a firewall under Unix Frank W. Keeney (Jun 04)
- Re: Configuring a firewall under Unix Carric Dooley (Jun 14)
- RE: Configuring a firewall under Unix kevin hunter (Jun 14)
- RE: Configuring a firewall under Unix dreamwvr (Jun 15)