From owner-freebsd-security Mon Dec 13 23:12:43 1999 Delivered-To: freebsd-security@freebsd.org Received: from inago.swcp.com (inago.swcp.com [198.59.115.17]) by hub.freebsd.org (Postfix) with ESMTP id 5B98E14C05 for ; Mon, 13 Dec 1999 23:12:41 -0800 (PST) (envelope-from synk@swcp.com) Received: (from synk@localhost) by inago.swcp.com (8.8.7/8.8.7) id AAA09760; Tue, 14 Dec 1999 00:12:38 -0700 (MST) Date: Tue, 14 Dec 1999 00:12:38 -0700 From: Brendan Conoboy To: Adidas Boy Cc: freebsd-security@FreeBSD.ORG Subject: Re: Why use a Firewall? Message-ID: <19991214001238.A9754@inago.swcp.com> References: <19991213161434.34190.qmail@hotmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.6i In-Reply-To: <19991213161434.34190.qmail@hotmail.com>; from Adidas Boy on Mon, Dec 13, 1999 at 09:14:34AM -0700 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, Dec 13, 1999 at 09:14:34AM -0700, Adidas Boy wrote: > > I have always wondered what does a firewall really do for one? I mean > why should one have one for their web servers and what kind of protection > does it give to protect against hackers or what not? > If i was to install a firewall what types of programs should I > install? > > Any responses would be appreciated. The servers i'm mainly running > would just be DNS, Web Server, and mail server. I use a firewall because some network ports I want accessible by my internal network that I don't want accessed from the external network (rest of the world). These include rsh, nfs (plus all its cohorts) and X11. It also keeps people from poking the inextinguishable network ports on windows machines (137-139). -Brendan (synk@swcp.com) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message