Re: IPFW almost works now -> stateful rules

From: Crist Clark (crist.clark@globalstar.com)
Date: 06/14/01


Date: Thu, 14 Jun 2001 09:51:44 -0700
From: "Crist Clark" <crist.clark@globalstar.com>
To: Peter Pentchev <roam@orbitel.bg>

Peter Pentchev wrote:
>
> On Thu, Jun 14, 2001 at 11:59:28AM -0400, Igor Roshchin wrote:
> >
> >
> > If those rules are all rules you have,
> > and I didn't miss any line,
> > no ftp would be allowed to go through, since
> > there is no rule for the port 21.
> > Aren't you mixing something ? ftp is at port 21.
> > Port 22 is ssh.
> > (Check /etc/services)
> >
> > However, I am puzzled, how do you manage to establish the initial connect
> > at all.
>
> This has been discussed before: his FTP server is listening on a high port.

But his tcpdump(8) output indicates the 'ftp' port is being used...
I hope he didn't edit /etc/services (yee-uck).

-- 
Crist J. Clark                                Network Security Engineer
crist.clark@globalstar.com                    Globalstar, L.P.
(408) 933-4387                                FAX: (408) 933-4926
The information contained in this e-mail message is confidential,
intended only for the use of the individual or entity named above.  If
the reader of this e-mail is not the intended recipient, or the employee
or agent responsible to deliver it to the intended recipient, you are
hereby notified that any review, dissemination, distribution or copying
of this communication is strictly prohibited.  If you have received this
e-mail in error, please contact postmaster@globalstar.com
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-security" in the body of the message