[CentOS] Apparent BIND problem doing RBL lookups for Postfix

listserv.traffic at sloop.net
Thu, 15 Apr 2010 00:36:43 -0000

My apologies if I'm posting the wrong place, or am asking a common
question. All my looking so far hasn't turned up anything very useful
in knowing what to look at, or what to modify.

---
CentOS 5, running BIND 9.3.6
i386

Hardware:
P4, 2.8Ghz, 1G memory
Sata drives - non mirrored etc.

Load is light, usually under 0.1

--
This box is running Postfix as our mail server. BIND (9.3.6) [Latest.]

--
Problem:
Postfix is doing RBL lookups on zen.spamhaus.org.
Everything goes along groovy - but then lookups start failing.

Early in the process, we get stuff like this: [We have a "successful"
lookup, and then a failure...]
---
Apr 14 14:25:05 mail postfix/smtpd[22281]: NOQUEUE: reject: RCPT from
bzq-79-183-5-119.red.bezeqint.net[79.183.5.119]: 554 5.7.1 Service unavailable;
Client host [79.183.5.119] blocked using zen.spamhaus.org;
from=<contriveclaudia at royalmoore.com> to=<contriveclaudia at
royalmoore.com> proto=SMTP helo=<bzq-79-183-5-119.red.bezeqint.net>

Apr 14 14:25:07 mail postfix/smtpd[22804]: warning:
33.229.242.205.zen.spamhaus.org: RBL lookup error: Host or domain name not
found. Name service error for name=33.229.242.205.zen.spamhaus.org type=A: Host
not found, try again
---
As you can see, we had a lookup succeed and then just right after, one fail -
claiming it got no answer from BIND. I get others after this that SUCCEED - so
it's not in 100% failure mode yet.
After time [how much, I don't know] eventually all the zen queries
[or most all] fail.

A bind restart fixes the problem. [Hmmm...]

---
I do some logging in bind, and I don't see any reason for them to fail.
Here's a bind debug log of 5 on that failure above.

---
14-Apr-2010 14:24:57.654 queries: info: client 127.0.0.1#42018: query:
33.229.242.205.zen.spamhaus.org IN A +
14-Apr-2010 14:24:57.654 security: debug 3: client 127.0.0.1#42018: query
(cache) '33.229.242.205.zen.spamhaus.org/A/IN' approved
14-Apr-2010 14:24:57.654 resolver: debug 1: createfetch:
33.229.242.205.zen.spamhaus.org A
14-Apr-2010 14:24:57.654 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): create
14-Apr-2010 14:24:57.654 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): join
14-Apr-2010 14:24:57.654 resolver: debug 3: fetch 0x94a0b20 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): created
14-Apr-2010 14:24:57.655 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): start
14-Apr-2010 14:24:57.655 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:24:57.655 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelqueries
14-Apr-2010 14:24:57.655 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): getaddresses
14-Apr-2010 14:24:57.655 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:24:57.655 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:24:57.655 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:24:57.655 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:24:57.655 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:24:59.657 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:24:59.657 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:24:59.657 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:24:59.657 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:24:59.657 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:24:59.657 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:24:59.657 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:24:59.657 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:01.658 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:01.658 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:01.658 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:01.658 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:01.658 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:01.659 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:01.659 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:01.659 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:02.653 queries: info: client 127.0.0.1#42018: query:
33.229.242.205.zen.spamhaus.org IN A +
14-Apr-2010 14:25:02.653 security: debug 3: client 127.0.0.1#42018: query
(cache) '33.229.242.205.zen.spamhaus.org/A/IN' approved
14-Apr-2010 14:25:02.654 resolver: debug 1: createfetch:
33.229.242.205.zen.spamhaus.org A
14-Apr-2010 14:25:02.654 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): join
14-Apr-2010 14:25:02.654 resolver: debug 3: fetch 0x94d54c8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): created
14-Apr-2010 14:25:03.660 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:03.660 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:03.660 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:03.660 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:03.660 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:03.660 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:03.660 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:03.660 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:03.660 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:05.663 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:05.663 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:05.663 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:05.663 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:05.663 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:05.663 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:05.663 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:05.663 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:05.663 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:07.664 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:07.664 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:07.664 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:07.664 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:07.664 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:07.664 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:07.665 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:07.665 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:07.665 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:08.393 queries: info: client 127.0.0.1#50896: query:
33.229.242.205.zen.spamhaus.org IN A +
14-Apr-2010 14:25:08.393 security: debug 3: client 127.0.0.1#50896: query
(cache) '33.229.242.205.zen.spamhaus.org/A/IN' approved
14-Apr-2010 14:25:08.393 resolver: debug 1: createfetch:
33.229.242.205.zen.spamhaus.org A
14-Apr-2010 14:25:08.393 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): join
14-Apr-2010 14:25:08.393 resolver: debug 3: fetch 0x94ad9c8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): created
14-Apr-2010 14:25:09.666 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:09.666 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:09.666 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:09.666 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:09.666 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:09.666 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:09.666 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:09.666 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:09.666 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:11.668 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:11.668 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:11.668 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:11.668 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:11.668 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:11.668 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:11.668 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:11.668 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:11.668 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:13.669 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:13.669 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:13.669 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:13.669 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:13.669 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:13.669 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:13.670 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:13.670 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:13.670 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:15.671 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:15.671 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:15.671 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:15.671 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:15.671 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:15.671 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:15.671 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:15.671 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:15.671 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:17.673 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:17.673 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:17.673 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:17.673 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:17.673 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:17.673 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:17.673 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:17.673 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:17.673 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:19.674 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:19.674 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:19.674 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:19.674 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:19.674 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:19.674 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:19.675 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:19.675 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:19.675 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:21.676 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:21.676 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:21.676 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:21.676 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:21.676 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:21.676 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:21.676 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:21.676 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:21.676 resolver: debug 3: resquery 0x940ec38 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:23.677 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): timeout
14-Apr-2010 14:25:23.678 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:23.678 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): try
14-Apr-2010 14:25:23.678 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): query
14-Apr-2010 14:25:23.678 resolver: debug 3: resquery 0x94ae7b8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): send
14-Apr-2010 14:25:23.678 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): too many timeouts, disabling
EDNS0
14-Apr-2010 14:25:23.678 resolver: debug 3: resquery 0x94ae7b8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): sent
14-Apr-2010 14:25:23.678 resolver: debug 3: resquery 0x94ae7b8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): udpconnected
14-Apr-2010 14:25:23.678 resolver: debug 3: resquery 0x94ae7b8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): senddone
14-Apr-2010 14:25:23.912 resolver: debug 3: resquery 0x94ae7b8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): response
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): noanswer_response
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): ncache_message
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): clone_results
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelquery
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): done
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): stopeverything
14-Apr-2010 14:25:23.912 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelqueries
14-Apr-2010 14:25:23.913 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): sendevents
14-Apr-2010 14:25:23.913 resolver: debug 3: fetch 0x94a0b20 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): destroyfetch
14-Apr-2010 14:25:23.913 resolver: debug 3: fetch 0x94d54c8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): destroyfetch
14-Apr-2010 14:25:23.913 resolver: debug 3: fetch 0x94ad9c8 (fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A)): destroyfetch
14-Apr-2010 14:25:23.914 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): shutdown
14-Apr-2010 14:25:23.914 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): doshutdown
14-Apr-2010 14:25:23.914 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): stopeverything
14-Apr-2010 14:25:23.914 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): cancelqueries
14-Apr-2010 14:25:23.914 resolver: debug 3: fctx
0x932e140(33.229.242.205.zen.spamhaus.org/A'): destroy
---
As far as I can see, the BIND query simply didn't get a response -
but no errors?

---
First, someone's going to ask - perhaps Zen's blocking you. I don't
think so. Here's why.
-We're non-commercial, using the definition set my spamhaus,
-mail connects TOTAL are well less than 100K a day. (Less than 10K in actuality)
-and thus having more than 300K queries is pretty unlikely.

-Also, let me remind you that a restart of the bind service seems to
make the failures go away for a while, so if zen were blocking our queries,
I'd think that wouldn't make a difference.

---
I certainly suspect a problem with BIND, but I can't find it, and have no
idea where to go from here.
I simply don't know where to look any more. If BIND were having a problem,
say allocating memory, or something, shouldn't it be in a debug level 5 log?

HELP!

-Greg

[Cross posted from elsewhere, but I'm at a dead-end right now, so
looking for a steer in where to ask, or direct help! TIA]