Date: Sat, 3 Feb 2001 06:12:21 +0100 From: Martin Eggen <martin@copyleft.no> To: Peter Brezny <peter@sysadmin-inc.com> Cc: freebsd-net@freebsd.org Subject: Re: ipfw not allowing dns traffic Message-ID: <20010203061221.B22365@unity.copyleft.no> In-Reply-To: <000801c08d5e$5f4259c0$46010a0a@sysadmininc.com>; from peter@sysadmin-inc.com on Fri, Feb 02, 2001 at 04:23:22PM -0500 References: <000801c08d5e$5f4259c0$46010a0a@sysadmininc.com>
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[Peter Brezny] > I thought I had everything. > > # Allow DNS traffic from internet to query your DNS (for reverse > # lookups etc). > $fwcmd add allow tcp from any 53 to $ns1 53 setup > $fwcmd add allow udp from any 53 to $ns1 53 > $fwcmd add allow udp from $ns1 53 to any 53 > > but nslookup's fail from outside the firewall on another machine in nslookup > with server set to my firewall machine. > > What have i missed? Your nslookup queries may not originate from port 53. (In fact, as they are non-root processes, they use ephemeral ports high above 1023). -- Martin Eggen <martin@copyleft.no> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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