From owner-freebsd-questions@FreeBSD.ORG Tue Dec 13 02:29:41 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 3D55216A420 for ; Tue, 13 Dec 2005 02:29:41 +0000 (GMT) (envelope-from derek@computinginnovations.com) Received: from betty.computinginnovations.com (dsl081-142-072.chi1.dsl.speakeasy.net [64.81.142.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id 55F5443D5D for ; Tue, 13 Dec 2005 02:29:39 +0000 (GMT) (envelope-from derek@computinginnovations.com) Received: from p17.computinginnovations.com (dhcp-10-20-30-100.computinginnovations.com [10.20.30.100]) (authenticated bits=0) by betty.computinginnovations.com (8.13.5/8.12.11) with ESMTP id jBD2TEDx068363; Mon, 12 Dec 2005 20:29:14 -0600 (CST) Message-Id: <6.0.0.22.2.20051212202300.027be6c0@mail.computinginnovations.com> X-Sender: derek@mail.computinginnovations.com X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Mon, 12 Dec 2005 20:29:06 -0600 To: "Jean-Paul Natola" , "Chuck Swiger" From: Derek Ragona In-Reply-To: <3A85D7EF44E1C744BF6434691F5659E9672D5B@fci-ex.FCI> References: <3A85D7EF44E1C744BF6434691F5659E9672D5B@fci-ex.FCI> Mime-Version: 1.0 X-ComputingInnovations-MailScanner-Information: Please contact the ISP for more information X-ComputingInnovations-MailScanner: Found to be clean X-MailScanner-From: derek@computinginnovations.com Content-Type: text/plain; charset="us-ascii"; format=flowed X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: RE: DNS refresh X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Dec 2005 02:29:41 -0000 At 02:32 PM 12/12/2005, Jean-Paul Natola wrote: >-----Original Message----- >From: owner-freebsd-questions@freebsd.org >[mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Chuck Swiger >Sent: Monday, December 12, 2005 3:06 PM >To: Jean-Paul Natola >Cc: freebsd-questions@freebsd.org >Subject: Re: DNS refresh > >Jean-Paul Natola wrote: > > Sorry for the novice question, > > > > How does one go about refreshing a dns record on BSD box (without >rebooting), > > it is NOT a DNS server. > >Most BSD networks do not have dynamic DNS updating enabled on their >nameservers, >but that is the capability you seem to be asking about. If your network does >have this enabled, it's possible that using dhclient to release and renew a >DHCP >lease on the BSD machine would be the right approach. > >Otherwise, change the zone file on the primary DNS server directly by hand. > >-- >-Chuck >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > >Heres the situation > >I'm in windows environment mainly, I recently setup a BSD box (static IP, and >DNS pointing to the windows DNS server) > >With Exim, SA and CLAM_AV > >All has been running relatively well (3 months give or take) > >Till today I started getting this: > >milter# freshclam >ClamAV update process started at Mon Dec 12 15:05:34 2005 >WARNING: DNS record is older than 3 hours. >WARNING: Invalid DNS reply. Falling back to HTTP mode. > >Google gave me > >http://www.google.com/search?hl=en&q=DNS+record+is+older+than+3+hours&btnG=Go >ogle+Search > >One tell me that's its ok >There is no reason to be concerned - most likely you have a caching DNS >server at the gateway and this is causing it. DNS query is designed to >minimise load on the datbase server when determining if the database version >is uptodate. But if this method fails it would just query the database server > >The other , leaves me wondering >I get this error when running freshclam: Invalid DNS reply. Falling back to >HTTP mode or ERROR: Can't query current.cvd.clamav.net . What does it mean? > >There is a problem with your DNS server. Please check the entries in >/etc/resolv.conf and verify that you can resolve the TXT record manually: >$ host -t txt current.cvd.clamav.net >If you can't, it means your network is broken. You'll be still able to >download the updates, but you'll waste a lot of bandwidth checking for >updates. Check the DNS servers your windows DNS is using to forward requests to, your ISP may have changed one or more of their DNS servers. As an alternative you can setup your FreeBSD box as a DNS caching server, where it will forward requests to your ISP's DNS server(s) directly, taking your windows server out of the situation. -Derek