From owner-freebsd-questions Sat Dec 14 18:27:31 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 9E80137B401 for ; Sat, 14 Dec 2002 18:27:29 -0800 (PST) Received: from mailsrv.otenet.gr (mailsrv.otenet.gr [195.170.0.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1306143EC5 for ; Sat, 14 Dec 2002 18:27:28 -0800 (PST) (envelope-from keramida@ceid.upatras.gr) Received: from gothmog.gr (patr364-a08.otenet.gr [195.167.109.40]) by mailsrv.otenet.gr (8.12.6/8.12.6) with ESMTP id gBF2RAEP018178; Sun, 15 Dec 2002 04:27:20 +0200 (EET) Received: from gothmog.gr (gothmog [127.0.0.1]) by gothmog.gr (8.12.6/8.12.6) with ESMTP id gBF2R3H5006734; Sun, 15 Dec 2002 04:27:06 +0200 (EET) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by gothmog.gr (8.12.6/8.12.6/Submit) id gBF2Qxlj006733; Sun, 15 Dec 2002 04:26:59 +0200 (EET) (envelope-from keramida@ceid.upatras.gr) Date: Sun, 15 Dec 2002 04:26:59 +0200 From: Giorgos Keramidas To: Bsd Neophyte Cc: freebsd-questions@FreeBSD.ORG Subject: Re: named.conf - what is "forwarders" Message-ID: <20021215022659.GA6592@gothmog.gr> References: <20021215021033.23812.qmail@web20102.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20021215021033.23812.qmail@web20102.mail.yahoo.com> 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 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