Date: Thu, 4 Apr 1996 16:07:48 -0600 (CST) From: Andrew Smith <awsmith@rip.ops.neosoft.com> To: bind-users@vix.com Cc: questions@freebsd.org Subject: Classless DNS incompat? Message-ID: <199604042207.QAA18118@rip.ops.neosoft.com>
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Perhaps not the best place for this question....
Nameserver: ns.neo.net (198.64.6.1/206.109.1.1)
FreeBSD 2.1-STABLE
BIND 4.9.3 BETA26
FTP Server: www.neosoft.com (206.109.1.6)
FreeBSD 2.1-960102
I just started to change a couple of my in-addrs to
the cidrd-classless-inaddr draft specs, but I have noticed
that our FreeBSD WWW/FTP server running wu-ftpd 2.4 is
refusing customers who are in the in-addr range due to
a mismatch in the A record returned from gethostbyname()
and the actual PTR pointed to by the CNAME from gethostbyaddr().
For example, monster.t1.com resolves to 206.109.155.18,
but 206.109.155.18 resolves to a CNAME 206.109.155.0.18,
which then resolves to monster.t1.com. The resolver seems
to not like this, returns an error, and wu-ftpd denies
access.
Questions: Is this a bug in the FreeBSD resolver?
Do most O/S's resolvers function like this?
Am I implimenting the draft method incorrectly
to get responses like this?
Does this bode ill for common use of
this draft practice? Is this a known
problem that many others are experiencing?
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Andrew Smith ** awsmith@neosoft.com ** Network Operations ** (713) 968-5800
** "The best way to predict the future is to invent it" - Alan Kay **
** http://www.neosoft.com/neosoft/staff/andrew **
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