From owner-freebsd-questions Tue Oct 16 14:34:44 2001 Delivered-To: freebsd-questions@freebsd.org Received: from robin.mail.pas.earthlink.net (robin.mail.pas.earthlink.net [207.217.120.65]) by hub.freebsd.org (Postfix) with ESMTP id 525D237B408 for ; Tue, 16 Oct 2001 14:34:40 -0700 (PDT) Received: from blossom.cjclark.org (dialup-209.247.143.200.Dial1.SanJose1.Level3.net [209.247.143.200]) by robin.mail.pas.earthlink.net (8.11.5/8.9.3) with ESMTP id f9GLYIn11832; Tue, 16 Oct 2001 14:34:22 -0700 (PDT) Received: (from cjc@localhost) by blossom.cjclark.org (8.11.6/8.11.3) id f9GLY0Q05315; Tue, 16 Oct 2001 14:34:00 -0700 (PDT) (envelope-from cjc) Date: Tue, 16 Oct 2001 14:34:00 -0700 From: "Crist J. Clark" To: ann kok Cc: questions@FreeBSD.ORG Subject: Re: scan the ports Message-ID: <20011016143400.E4437@blossom.cjclark.org> Reply-To: cjclark@alum.mit.edu References: <20011016152822.8623.qmail@web20109.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20011016152822.8623.qmail@web20109.mail.yahoo.com>; from annkok2001@yahoo.com on Tue, Oct 16, 2001 at 08:28:22AM -0700 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Oct 16, 2001 at 08:28:22AM -0700, ann kok wrote: > Hi all > > I discovered the following after scanning my webserver > > > 137/tcp filtered netbios-ns > 138/tcp filtered netbios-dgm > 139/tcp filtered netbios-ssn > > What are the functions of the ports? > > and > > Can I remove it? > > How do I remove it? Read it again. They are _filtered._ They are not open, listening ports. When you used nmap to scan the server, nmap got no response back. Most likely, a firewall or something in between you and the webserver is dropping those packets. -- Crist J. Clark | cjclark@alum.mit.edu | cjclark@jhu.edu http://people.freebsd.org/~cjc/ | cjc@freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message