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- Newsgroups: comp.protocols.kerberos
- Path: sparky!uunet!stanford.edu!ATHENA.MIT.EDU!tytso
- From: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
- Subject: Re: The incredible missing Principle trick
- Message-ID: <9211130336.AA02678@tsx-11.MIT.EDU>
- Sender: news@shelby.stanford.edu (USENET News System)
- Organization: Internet-USENET Gateway at Stanford University
- References: <1992Nov12.205140.24257@tc.cornell.edu>
- Date: Fri, 13 Nov 1992 03:36:24 GMT
- Lines: 27
-
- Date: Thu, 12 Nov 1992 20:51:40 GMT
- From: Mike Hojnowski <mqh@theory.tc.cornell.edu>
-
- We're running Kerberos V4 here with about 6000 principles. The server is
- running on an RS/6000 (AIX 3.2.0). Somehow, for reasons unknown, 8 of our
- principles disappeared over the weekend. They appear in a "kdb_util dump"
- on Sunday, and are gone on Tuesday. The server was not interrupted at all
- during that interval.
-
- Anyone seen anything like this before?
-
- One possible reason is that you got unlucky with a hash collision which
- caused the DBM file to grow bigger than the max. allowable filesize on
- your system, and you have a badly implemented DBM library that doesn't
- deal well with that situation (i.e., fails silently) --- but that's only
- a guess. At MIT, we haven't had that problem happen with our Kerberos
- database, which has almost 20,000 entries in it. However, we have had
- this sort of problem with our /usr/lib/aliases file on our mailhub,
- when the length of the /usr/lib/aliases.pag gets bigger than 2
- gigabytes.
-
- I'm not sure I believe this is what's really happening, though, since
- 6,000 principals isn't all that many. We haven't seen your problem at
- MIT, although we're not running our server on a RS/6000.
-
- - Ted
-
-