Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 5 May 2000 09:01:28 +0200
From:      Marc Silver <marcs@draenor.org>
To:        Dan O'Connor <dan@mostgraveconcern.com>
Cc:        freebsd-security@freebsd.org
Subject:   Re: Firewall Rules
Message-ID:  <20000505090128.A4456@draenor.org>
In-Reply-To: <016c01bfb65d$aaf59c20$0200000a@danco>; from dan@mostgraveconcern.com on Thu, May 04, 2000 at 11:42:00PM -0700
References:  <016c01bfb65d$aaf59c20$0200000a@danco>

next in thread | previous in thread | raw e-mail | index | archive | help

Hey Dan,

Your feedback is much appreciated, and I have modified the rules (and my
document) based on your suggestions.

On Thu, May 04, 2000 at 11:42:00PM -0700, Dan O'Connor wrote:
> <snip>
> 
> Are you talking about User-PPP? (I assume so, since you use 'tun0' in your
> rules.) You do know that ppp(8) has built-in NAT and filtering (which is
> easier than IPFW), so that you don't need IPFW and NATD?
> 

Do you feel that userland ppp is as safe as the kernel firewalling
options?  I would like to gain a better understanding.  What are the
major differences between the two?

> This one will allow incoming connections to your web server. BTW, 'allow'
> and 'pass' are the same, is there a particular reason you changed
> terminology? Also, you probably won't want to log this, since web traffic
> generates huge amounts of connections, and your web server will log it all
> anyway...

Didn't know that pass and allow were the same thing....thanks.  Also,
the logging of http was a typo, but thanks for pointing it out.

> You might consider adding '$fwcmd allow udp from any to any 33434-33463' if
> you want to let people do a traceroute to you...

Also very useful, thank you.

> You might want to also take a look at the anti-spoofing rules in the SIMPLE
> section of /etc/rc.firewall.

Will look at this too.

Thanks,
Marc


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-security" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20000505090128.A4456>