From owner-freebsd-questions Sun Dec 15 19:15:32 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6278237B401 for ; Sun, 15 Dec 2002 19:15:30 -0800 (PST) Received: from floyd.gnulife.org (floyd.gnulife.org [199.86.41.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9A65A43E4A for ; Sun, 15 Dec 2002 19:15:29 -0800 (PST) (envelope-from jamie@gnulife.org) Received: by floyd.gnulife.org (Postfix, from userid 1000) id 97BBD432C9; Sun, 15 Dec 2002 21:30:18 -0600 (CST) Received: from localhost (localhost [127.0.0.1]) by floyd.gnulife.org (Postfix) with ESMTP id 88CF3432C6 for ; Sun, 15 Dec 2002 21:30:18 -0600 (CST) Date: Sun, 15 Dec 2002 21:30:18 -0600 (CST) From: Jamie To: freebsd-questions@FreeBSD.ORG Subject: Re: named.conf - what is "forwarders" In-Reply-To: <20021215022659.GA6592@gothmog.gr> Message-ID: <20021215212815.G27446-100000@floyd.gnulife.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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 Sun, 15 Dec 2002, Giorgos Keramidas wrote: > On 2002-12-14 18:10, Bsd Neophyte wrote: > > > > this is what the comment says... > > > > // If you've got a DNS server around at your upstream provider, enter > > // its IP address here, and enable the line below. This will make you > > // benefit from its cache, thus reduce overall DNS traffic in the > > Internet. > > /* > > forwarders { > > 127.0.0.1; > > }; > > */ > > > > but i don't understand what this means? what do i use to replace the > > 127.0.0.1? do i replace it with both my ISP's domain name server ip > > addresses? > > That's one possibility. > > > what are forwarders? > > DNS servers that your local named will query for all domains it > doesn't know about. Queries for the local domains are served from the > local zone files. All other queries go through a different procedure > which usually requires sending queries to the root name servers and > several others. This information is cached by the querying named > instance for a while. > > Instead of having your named make queries to root name servers, .com > nameservers, and then google.com. nameservers, when you use forwarders > the servers that you have configured as forwarders are queried. > Bearing in mind that your ISP has many users who probably ask for the > similar DNS information all the time, it is very likely that their > name server has this information already. This is why named.conf > suggests that you use *them* as forwarders. > > - Giorgos > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > If you want more information on how this works, I would recommend getting a copy of "DNS and Bind" by Paul Albitz and Cricket Liu. They cover the theory you are looking at in chapters 2 and 10. - Jamie ------------------*************************** "FROM THE LAND OF SKY BLUE WATERS...waters FROM THE LAND OF PINES LOFTY BALSAMS COMES THE BEER REFRESHING" ******************--------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message