Date: Wed, 9 Apr 1997 09:20:04 -0700 (PDT) From: David Alan Gilbert <gilbertd@cs.man.ac.uk> To: freebsd-bugs Subject: Re: bin/1891: mountd fails to export Message-ID: <199704091620.JAA29490@freefall.freebsd.org>
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The following reply was made to PR bin/1891; it has been noted by GNATS. From: David Alan Gilbert <gilbertd@cs.man.ac.uk> To: freebsd-gnats-submit@freebsd.org, adam@veda.is Cc: Subject: Re: bin/1891: mountd fails to export Date: Wed, 09 Apr 1997 13:52:27 +0100 This is causing me real hastles. We have a few hundred machines on the network and I admin one server and don't have admin privelidges outside the group; even though our server must export to everyone. Quite often a machine gets added to a netgroup but not the DNS or someone does a clear out and tidies up the DNS but doesn't clean the netgroup out - this shouldn't screw up all the other machines. To give you an idea of the scale of this problem when I first installed our FreeBSD server there were around 100 machines in the netgroup which were no longer in the DNS! Even on the basis of transient problems (you start mountd between someone updating netgroup and DNS) it is just not on for mountd to skip the entire line. I've written a a hack which works around it - but its a hack and it just core'd on me probably because it was one of the first entries of the netgroup which failed. If someone who understands the linked list in mountd could fix this it would be VERY useful. Dave P.S. SunOS just takes these netgroup problems in its stride. Another view of the same problem is that you shouldn't do the IP lookup at startup time, but instead when a mount request occurs - what happens if the IP address of a machine changes between mountd starting and the machine trying to mount you? I believe SunOS would cope with this and FreeBSD wouldn't. This would be a major change, I believe turing the error above into a warning would be fairly easy. -- ----------- (Phone: 0161-275-3547) ------------------------ Man can not live - David Alan Gilbert - gilbertd@cs.man.ac.uk - G7FHJ@GB7BEV by bread alone. He ----------- (University of Manchester - AMULET Group) ----- needs chocolate. -
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