Hi,
I've moved our primary nameserver from windows server 2008 to windows
server 2003, hoping that the problems with listening to TCP queries will
go away. Then I'll see what I can do to reproduce if I get the time.
My question is:
When a slave server deems that a master is unreachable, how/when will it
(re)try to establish contact. Can I set a timeout or so somewhere?
I have this log file snippet, where you can see
1) a notify that is "up to date"
2) several "retry limit for master xxx exceeded" as well as a "failed to
connect: timed out" (time frame of ~10 min)
3) several "skipping zone transfer as master xxx is unreachable
(cached)" Note that this is almost 2 DAYS later.
So, it seems like the server is experiencing problems which makes it
believe that the master is unreachable. It might have been, I don't know
- I was reconfiguring from server 2008 to server 2003, but had very
little downtime as I moved the IP when the new master was ready. Almost
2 days later the slave writes "unreachable (cached)" which I assume
indicates that it *believes* the master is unreachable because this
information is cached. I would like it to re-check, as the master was
actually online. Any ideas or hints?
Best regards,
Jan Hansen
The log file:
------------------------------------------------------------------
1) Things are working
------------------------------------------------------------------
06-jul-2009 16:17:06.419 notify: info: client 213.173.250.146#26635:
received notify for zone 'xn--vikkels-w1a.dk'
06-jul-2009 16:17:06.419 general: info: zone xn--vikkels-w1a.dk/IN:
notify from 213.173.250.146#26635: zone is up to date
------------------------------------------------------------------
2) multiple "retry limit exceeded"
------------------------------------------------------------------
07-jul-2009 17:27:29.060 general: info: zone univision.dk/IN: refresh:
retry limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:27:29.060 general: info: zone univision.dk/IN: Transfer
started.
07-jul-2009 17:27:50.138 xfer-in: error: transfer of 'univision.dk/IN'
from 213.173.250.146#53: failed to connect: timed out
07-jul-2009 17:27:50.138 xfer-in: info: transfer of 'univision.dk/IN'
from 213.173.250.146#53: Transfer completed: 0 messages, 0 records, 0
bytes, 21.078 secs (0 bytes/sec)
07-jul-2009 17:28:01.528 general: info: zone effektiv.dk/IN: refresh:
retry limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:29:32.450 general: info: zone aotransport.dk/IN: refresh:
retry limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:29:40.216 general: info: zone kjmc.se/IN: refresh: retry
limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:30:10.950 general: info: zone telepriser.dk/IN: refresh:
retry limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:33:33.669 general: info: zone iankerandersen.dk/IN:
refresh: retry limit for master 213.173.250.146#53 exceeded (source
0.0.0.0#0)
07-jul-2009 17:33:49.013 general: info: zone tiku.dk/IN: refresh: retry
limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:33:55.810 general: info: zone sdvr.dk/IN: refresh: retry
limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:34:01.544 general: info: zone egrupper.dk/IN: refresh:
retry limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:36:40.716 general: info: zone kkr-net.dk/IN: refresh:
retry limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:36:43.794 general: info: zone mend.dk/IN: refresh: retry
limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
07-jul-2009 17:37:26.591 general: info: zone fitdk.dk/IN: refresh: retry
limit for master 213.173.250.146#53 exceeded (source 0.0.0.0#0)
------------------------------------------------------------------
3) two days later, master is unreachable (cached)
------------------------------------------------------------------
09-jul-2009 11:54:29.685 notify: info: client 213.173.250.146#65090:
received notify for zone 'nhl-data.dk'
09-jul-2009 11:54:29.701 general: info: zone nhl-data.dk/IN: refresh:
skipping zone transfer as master 213.173.250.146#53 (source 0.0.0.0#0)
is unreachable (cached)
09-jul-2009 12:44:36.685 general: info: zone nhl-data.dk/IN: refresh:
skipping zone transfer as master 213.173.250.146#53 (source 0.0.0.0#0)
is unreachable (cached)
09-jul-2009 13:31:35.685 general: info: zone nhl-data.dk/IN: refresh:
skipping zone transfer as master 213.173.250.146#53 (source 0.0.0.0#0)
is unreachable (cached)
09-jul-2009 13:32:29.810 notify: notice: client 213.173.250.146#46455:
received notify for zone 'cityklinikken.dk': not authoritative
09-jul-2009 13:33:09.498 general: info: received control channel command
'reconfig'
09-jul-2009 13:33:09.498 general: info: loading configuration from
'C:\WINDOWS\system32\dns\etc\named.conf'
09-jul-2009 13:33:09.513 general: info: using default UDP/IPv4 port
range: [1024, 65535]
09-jul-2009 13:33:09.513 general: info: using default UDP/IPv6 port
range: [1024, 65535]
09-jul-2009 13:33:09.513 network: info: no IPv6 interfaces found
09-jul-2009 13:33:09.576 general: info: reloading configuration succeeded
09-jul-2009 13:33:09.576 general: info: any newly configured zones are
now loaded
09-jul-2009 13:33:09.592 general: info: zone cityklinikken.dk/IN:
refresh: skipping zone transfer as master 213.173.250.146#53 (source
0.0.0.0#0) is unreachable (cached)
09-jul-2009 13:33:10.076 general: info: zone fynbedandbreakfast.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:33:10.076 general: info: zone mermaidradio.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:33:58.576 general: info: zone mermaidradio.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:34:07.576 general: info: zone cityklinikken.dk/IN:
refresh: skipping zone transfer as master 213.173.250.146#53 (source
0.0.0.0#0) is unreachable (cached)
09-jul-2009 13:34:09.576 general: info: zone fynbedandbreakfast.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:35:48.576 general: info: zone mermaidradio.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:35:49.076 general: info: zone cityklinikken.dk/IN:
refresh: skipping zone transfer as master 213.173.250.146#53 (source
0.0.0.0#0) is unreachable (cached)
09-jul-2009 13:35:56.576 general: info: zone fynbedandbreakfast.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:38:57.576 general: info: zone mermaidradio.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:39:21.576 general: info: zone fynbedandbreakfast.dk/IN:
refresh: unexpected rcode (SERVFAIL) from master 213.173.250.146#53
(source 0.0.0.0#0)
09-jul-2009 13:39:22.576 general: info: zone cityklinikken.dk/IN:
refresh: skipping zone transfer as master 213.173.250.146#53 (source
0.0.0.0#0) is unreachable (cached)
09-jul-2009 13:40:09.170 general: info: shutting down: flushing changes
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