Date: Wed, 26 Sep 2001 08:24:20 -0400 From: Brian T.Schellenberger <bts@babbleon.org> To: freebsd-emulation@freebsd.org Subject: Re: Weird Linux / nameserver interaction Message-ID: <01092608242005.00563@i8k.babbleon.org> In-Reply-To: <01092608154803.00563@i8k.babbleon.org> References: <01092608154803.00563@i8k.babbleon.org>
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[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 <Uvl7O9x7x=7K0QUHdpG5BIckDrry@4ax.com>,
Kevin Neal <saskpn@wnt.sas.com> 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! <-------------------------
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