Date: Sat, 12 Jan 2002 13:01:39 +0100 From: Rogier Steehouder <r.j.s@gmx.net> To: Chris Appleton <appleton_chris@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: ipfw rules Message-ID: <20020112130139.A688@localhost> In-Reply-To: <20020111200507.5340.qmail@web14804.mail.yahoo.com>; from appleton_chris@yahoo.com on Fri, Jan 11, 2002 at 12:05:07PM -0800 References: <20020111200507.5340.qmail@web14804.mail.yahoo.com>
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On 11-01-2002 12:05 (-0800), Chris Appleton wrote:
> allow tcp from any 21 to a.b.c.d
This means allow connections from port 21 on any machine to any port on
a.b.c.d, so you completely opened up your system.
What you're probably looking for is:
allow tcp from any to a.b.c.d 21
Allow any machine to connect to only port 21 on a.b.c.d
With kind regards, Rogier Steehouder
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