Search Again: Re: Running on two. From: Peter Lalor Date: Tuesday, November 2, 1999 Time: 9:07:00 pm >From: "Men & Mice Support" <cbuxton@menandmice.com> > > >Men and Mice, is there something I'm missing? Is there a TTL at play here > >that makes the client ignore that a secondary exists? > >As promised, I have had our engineers examine this issue, and my >conjecture was confirmed. This is an Open Transport issue on the >client machine, not a server issue. Here's the response I got from >our engineers: > >We've done some investigation on this and this seems to be plain >resolver stupidity. <snip test details> >Bottom line: The resolver always tries to contact the listed name >servers in order, no matter what. This really is a pain, because DNS is so fundamental to Internet service. Some things--RADIUS for example--fail over very nicely, but this client resolver behavior makes it imperative that your primary DNS _never_ goes down--and makes your secondary fairly useless for client DNS resolution. As I think anyone who runs Mac OS servers can tell you, it can't be done. It will crash, sooner or later. Usually in OT, if it gets beat on enough. I wonder (but not enough to go look ;-) ) what the RFC says about the client resolver's desired behavior? Peter Lalor Infoasis plalor@infoasis.com The San Francisco Bay Area's Macintosh 415-459-7991 Consultant and Internet Service Provider 415-459-7992 fax http://www.infoasis.com/

Messages In This Thread: Re: Running on two. by andrew kagan on Oct 29, 1999 at 8:33:00 pm Running on two. by Ross Markbreiter on Oct 29, 1999 at 8:37:00 pm Re: Running on two. by Men & Mice Support on Oct 29, 1999 at 8:47:00 pm Re: Running on two. by Men & Mice Support on Oct 29, 1999 at 8:52:00 pm Re: Running on two. by andrew kagan on Oct 29, 1999 at 9:13:00 pm Re: Running on two. by Men & Mice Support on Oct 29, 1999 at 9:23:00 pm Re: Running on two. by Ross Markbreiter on Oct 29, 1999 at 9:34:00 pm Re: Running on two. by Ross Markbreiter on Oct 29, 1999 at 10:03:00 pm Re: Running on two. by Men & Mice Support on Nov 2, 1999 at 6:43:00 pm Re: Running on two. by Ross Markbreiter on Nov 2, 1999 at 7:17:00 pm Re: Running on two. by andrew kagan on Nov 2, 1999 at 7:41:00 pm Re: Running on two. by Peter Lalor on Nov 2, 1999 at 9:07:00 pm Re: Running on two. by Peter Bancroft on Nov 2, 1999 at 10:37:00 pm Re: Running on two. by Men & Mice Support on Nov 2, 1999 at 10:46:00 pm Re: Running on two. by Men & Mice Support on Nov 2, 1999 at 11:21:00 pm Re: Running on two. by Ross Markbreiter on Nov 2, 1999 at 11:30:00 pm Re: Running on two. by Men & Mice Support on Nov 2, 1999 at 11:49:00 pm Re: Running on two. by Ross Markbreiter on Nov 2, 1999 at 11:54:00 pm Re: Running on two. by Ross Markbreiter on Nov 3, 1999 at 12:59:00 am Re: Running on two. by Men & Mice Support on Nov 3, 1999 at 1:19:00 am