From owner-freebsd-questions Mon Sep 11 14:21:45 2000 Delivered-To: freebsd-questions@freebsd.org Received: from lennier.cc.vt.edu (lennier.cc.vt.edu [198.82.161.193]) by hub.freebsd.org (Postfix) with ESMTP id 87DC637B424 for ; Mon, 11 Sep 2000 14:21:38 -0700 (PDT) Received: from mail.vt.edu (gkar.cc.vt.edu [198.82.161.190]) by lennier.cc.vt.edu (8.11.0/8.11.0) with ESMTP id e8BLLbB73864 for ; Mon, 11 Sep 2000 17:21:37 -0400 (EDT) Received: from flaw.vt.edu ([198.82.82.148]) by gkar.cc.vt.edu (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with ESMTP id <0G0Q00A3ARC0V2@gkar.cc.vt.edu> for freebsd-questions@FreeBSD.ORG; Mon, 11 Sep 2000 17:21:36 -0400 (EDT) Date: Mon, 11 Sep 2000 17:29:19 -0400 From: Raymond Law Subject: Re: DNS or routing problem? In-reply-to: <39BD3447.9B8D8C2E@columbus.rr.com> X-Sender: flaw@mail.vt.edu To: freebsd-questions@FreeBSD.ORG Message-id: <4.3.0.20000911172353.00b10640@mail.vt.edu> MIME-version: 1.0 X-Mailer: QUALCOMM Windows Eudora Version 4.3 Content-type: text/plain; format=flowed; charset=us-ascii References: <39BC1068.63E19FD8@vt.edu> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Just after reboot, I couldn't ping my default router and my DNS server or anywhere in the world: $ ping www.vt.edu ping: sendto: cannot resolve www.vt.edu: Host name lookup failure $ ping 198.82.82.1 (my default router) ping: sendto: Host is down $ ping 198.82.82.66 (my first nameserver in resolv.conf) ping: sendto: No route to host I do have defaultrouter="198.82.82.1" in my /etc/rc.conf. I can get connectivity only after I do a "dnsquery www.vt.edu" ( it fails the first few times also). But after some time, it loses connectivty again. I guess it is more of a routing problem than DNS problem, but jsut couldn't figure it out. Ray, At 03:36 PM 9/11/00 -0400, you wrote: >Raymond Law wrote: > > > > I started a shell with no problem and it has connectivity. But after > > some time, it suddenly loses connectivity. It seems it can't find the > > DNS server on my network. But it can also be a routing problem. I need > > to do a dnsquery to my DNS server or a ping (or a mixture of both) to > > get it working again. I do have three nameserver entries in > > resolv.conf. Can anyone give me a clue please? > >Started a shell from where to where? This is kind of vague. Please >provide more details of the behaviour. Are you telnetting? Ssh? Is the >connection within the local subnet or across the country? What kind of >router/gateway? >I'm curious because I've been having similar problems. > >-Bill > >-- >FreeBSD ('BSD'): >No battles to the death are recalled. It is a small Daemon wearing >sneakers. It >is normally found on Internet servers and powerful desktops, and moves >very >quickly. A kill of this poweful creature is enough to tick off any >sysadmin. It >is highly magical, having the power to serve. It resists DoS and SYN >flood >attacks. Nothing is known about its attack. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message