bind-8.2.3-T2B after zone transfer error

[Andrew J Cole]

Received no replies to this one.  In retrospect I confounded the issue
slightly by the twaddle at the end relating to "_"s.

However we have seen another zone problem with the ac.uk zone today
(server is currently running 8.2.3-T5B) ...

May 23 15:24:13 cblslca named[80]: zone: ac.uk/IN: non-glue record below bottom of zone: ies.lmu.ac.uk/NS
May 23 15:24:13 cblslca named[80]: zone: ac.uk/IN: non-glue record below bottom of zone: ies.lmu.ac.uk/NS
May 23 15:24:13 cblslca named[80]: zone: ac.uk/IN: non-glue record below bottom of zone: mis.lmu.ac.uk/NS
May 23 15:24:13 cblslca named[80]: zone: ac.uk/IN: non-glue record below bottom of zone: mis.lmu.ac.uk/NS
May 23 15:24:14 cblslca named[80]: slave zone "ac.uk" (IN) rejected due to errors (serial 2000052305)

the previous serial which was ok was 2000052301.

Obviously the contents of the ac.uk zone file is a matter for the
maintainers of ac.uk but what is more concerning to me is that after
one of these failures to load we immediatly start to see errors for our
own zone lookups (the server is slaving leeds.ac.uk)...

May 23 15:24:34 cblslca popper[23286]: warning: can't verify hostname: gethostby
name(food-pc81.leeds.ac.uk) failed

It appears that the error recover, after the rejection, is inadequate.

Andrew

>Date: Sun, 9 Apr 2000 16:14:14 +0100 (BST)
>From: Andrew J Cole <A.J.Cole at cbl.leeds.ac.uk>
>Message-Id: <200004091514.e39FEE009640 at cblelcb.leeds.ac.uk>
>To: bind-users at isc.org
>Subject: bind-8.2.3-T2B after zone transfer error
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>
>I surmise that this problem is related to
>
> 969.   [bug]           post process a zone load to remove any non-glue at
>                        or below bottom of zone.
>
>One of the zones which we slave (ac.uk) appears to have acquired an
>error at the end of last week ...
>
>Apr  7 16:20:32 cblslca named[23715]: zone: ac.uk/IN: non-glue record below bottom of zone: phys.strath.ac.uk/NS
>... 
>
>after a zone transfer with these errors we start to see gethostbyname
>failures.  I presume because the post process mentioned in 969 doesn't
>clean up correctly.  When I remove the (slave) zone transfer and
>stop/start there is no problem.
>
>The other thing I notice in the logs is that our local zone with some
>"_" hosts generates a different error message "owner name .. is invalid"
>rather than "host name ... is invalid" in the case where we see the
>"non-glue record.." errors.
>
>... with the "non-glue record below bottom of zone" zone included in the
>named.conf (the faulty ac.uk is loaded before our local zones) ..
>
>Apr  9 16:06:22 cblslca named[6560]: owner name "dmd_sgi2.leeds.ac.uk" IN (secondary) is invalid - proceeding anyway
>
>... with the "non-glue record below bottom of zone" zone trasfer removed
>from the named.conf ...
>
>Apr  9 16:06:40 cblslca named[6560]: host name "dmd_sgi2.leeds.ac.uk" (owner "235.128.11.129.in-addr.arpa") IN (secondary) is invalid - proceeding anyway
>
>Andrew
>
>