From owner-freebsd-emulation Wed Sep 26 5:25: 3 2001 Delivered-To: freebsd-emulation@freebsd.org Received: from mail5.nc.rr.com (fe5.southeast.rr.com [24.93.67.52]) by hub.freebsd.org (Postfix) with ESMTP id E88D237B417 for ; Wed, 26 Sep 2001 05:24:57 -0700 (PDT) Received: from i8k.babbleon.org ([66.57.85.154]) by mail5.nc.rr.com with Microsoft SMTPSVC(5.5.1877.687.68); Wed, 26 Sep 2001 08:24:20 -0400 Content-Type: text/plain; charset="iso-8859-1" From: Brian T.Schellenberger To: freebsd-emulation@freebsd.org Subject: Re: Weird Linux / nameserver interaction Date: Wed, 26 Sep 2001 08:24:20 -0400 X-Mailer: KMail [version 1.2] References: <01092608154803.00563@i8k.babbleon.org> In-Reply-To: <01092608154803.00563@i8k.babbleon.org> MIME-Version: 1.0 Message-Id: <01092608242005.00563@i8k.babbleon.org> Content-Transfer-Encoding: 8bit Sender: owner-freebsd-emulation@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org [In a somewhat bizarre twist, I'm following up to my own posting. This is becuase I previously posted the query to an internal FreeBSD group, and got one reply, so I have some more information to add. After this, however, we hit a wall, so now I'm hoping that the emulation list be able to help.] In article , Kevin Neal wrote: |On 15 Aug 2001 20:18:10 GMT, bts@wnt.sas.com (Brian T. Schellenberger) |wrote: | |>I'm running a local nameserver on FreeBSD so that when I have VPN access |>up I can get SAS names from the SAS name server but external names from |>the RoadRunner name server. |> |>This works just peachy for serving up names to FreeBSD programs, but |>when I run Linux Netscape* it can't resolve any names via the name |>server. That is, if /etc/resolv.conf points to 127.0.0.1, then FreeBSD |>apps find names just fine, but Linux apps to do not. | |Is Linux Netscape managing to get DNS queries out to any network |interface if resolv.conf points to 127.0.0.1? | |Can you tcpdump lo0 and find out? Excellent idea. No traffic is generated to my local node from Netscape (linux), though Mozilla (native) does (as expected) generate traffic. |Or, can you ktrace (or alternate) Linux Netscape to see what it is |doing when it is supposed to be doing a DNS lookup? Another very good idea. Not sure what it means, but a SIGALRM is generated. I'm thinking Netscape bug (big surprise there), but maybe somebody else has an idea: 19644 navigator-linux- GIO fd 4 wrote 23 bytes "lookup: www.excite.com " 19644 navigator-linux- PSIG SIGALRM caught handler=0x84f7180 mask=0x0 code=0x0 19644 navigator-linux- RET write 23/0x17 19644 navigator-linux- CALL mincore(0xbfbfabe4,0) (With the static /etc/resolv.conf, this of course doesn't get the signal and all is good.) -- Brian T. Schellenberger . . . . . . . bts@wnt.sas.com (work) Brian, the man from Babble-On . . . . bts@babbleon.org (personal) http://www.babbleon.org --------------------> Free Dmitry Sklyarov! <------------------------- http://www.eff.org http://www.programming-freedom.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message