Re: disable traceroute to my host

From: sean-freebsd-security@chittenden.org
Date: 06/25/01 

Date: Sun, 24 Jun 2001 22:31:23 -0700
From: sean-freebsd-security@chittenden.org
To: alexus <ml@db.nexgen.com>

        man traceroute

[snip]

       -p Protocol specific. For UDP and TCP, sets the base
              port number used in probes (default is 33434).
              Traceroute hopes that nothing is listening on UDP
              ports base to base + nhops - 1 at the destination
              host (so an ICMP PORT_UNREACHABLE message will be
              returned to terminate the route tracing). If some-
              thing is listening on a port in the default range,
              this option can be used to pick an unused port
              range.

        -sc

On Mon, Jun 25, 2001 at 01:30:39AM -0400, alexus wrote:
> Delivered-To: chittenden.org-sean-freebsd-security@chittenden.org
> Delivered-To: freebsd-security@freebsd.org
> From: "alexus" <ml@db.nexgen.com>
> To: "Simon Rakovec" <simon@inforta.com>,
> <freebsd-security@freebsd.org>
> Subject: Re: disable traceroute to my host
> Date: Mon, 25 Jun 2001 01:30:39 -0400
> X-Priority: 3
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> where did you get those numbers?
>
> ----- Original Message -----
> From: "Simon Rakovec" <simon@inforta.com>
> To: <freebsd-security@freebsd.org>
> Sent: Sunday, June 24, 2001 1:42 PM
> Subject: Re: disable traceroute to my host
>
>
> > Try this:
> >
> > ipfw add deny udp from any 32769-65535 to <your-host> 33434-33523
> >
> > Regards, Simon
> >
> > alexus wrote:
> > >
> > > is it possible to disable using ipfw so people won't be able to
> traceroute
> > > me?
> > >
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-security" in the body of the message
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-security" in the body of the message
> >
>
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-security" in the body of the message 

-- 
Sean Chittenden

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