Re: IXFR manually edited zone files
On Mar 7, 2011, at 12:24 PM, David Coulthart wrote:
On Mar 7, 2011, at 11:42 AM, Chris Thompson wrote:
On Mar 7 2011, David Coulthart wrote:
BIND Version: 9.7.3 on Solaris 9 10 (locally compiled)
...
Based on the ARM a posting to bind-users[1], I enabled
ixfr-from-differences
master; on the hidden master expecting the master nameserver would generate
a diff from the previous zone file in memory and the new one being loaded
so it could send an IXFR to the slaves.
...
There is also a named-journalprint utility which you can apply to the
journal file on the master to check it contains what you hope for.
I don't see a journal file being created on the master after I do the reload.
The only messages in the master's log about a journal are on initial startup:
...
Based on the description of ixfr-from-differences in the ARM, I think a
journal file should be created. I have named running as user named, but I've
checked permissions on the directory zone file confirmed that named can
create files in the directory containing the zone file.
It looks like the problem is with setting ixfr-from-differences to master. If
I instead set the option to yes, a journal file is generated IXFR works
correctly. The zone definition in my test named.conf is:
zone example.com {
type master;
file example.com.zone;
};
so I expected setting ixfr-from-differences master; would cause a journal
file to be created for this master zone. Am I not understanding what the
master option for ixfr-from-differences is intended to do or is this a bug in
BIND?
Thanks,
Dave Coulthart
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Re: IXFR manually edited zone files
In message b840935f-4809-40cf-98c5-029cbbab4...@columbia.edu, David Coulthart
writes:
On Mar 7, 2011, at 12:24 PM, David Coulthart wrote:
On Mar 7, 2011, at 11:42 AM, Chris Thompson wrote:
On Mar 7 2011, David Coulthart wrote:
BIND Version: 9.7.3 on Solaris 9 10 (locally compiled)
...
Based on the ARM a posting to bind-users[1], I enabled ixfr-from-diffe
rences
master; on the hidden master expecting the master nameserver would gener
ate
a diff from the previous zone file in memory and the new one being load
ed
so it could send an IXFR to the slaves.
...
There is also a named-journalprint utility which you can apply to the
journal file on the master to check it contains what you hope for.
I don't see a journal file being created on the master after I do the reloa
d. The only messages in the master's log about a journal are on initial star
tup:
...
Based on the description of ixfr-from-differences in the ARM, I think a jou
rnal file should be created. I have named running as user named, but I've ch
ecked permissions on the directory zone file confirmed that named can cre
ate files in the directory containing the zone file.
It looks like the problem is with setting ixfr-from-differences to master. I
f I instead set the option to yes, a journal file is generated IXFR works c
orrectly. The zone definition in my test named.conf is:
zone example.com {
type master;
file example.com.zone;
};
so I expected setting ixfr-from-differences master; would cause a journal f
ile to be created for this master zone. Am I not understanding what the mast
er option for ixfr-from-differences is intended to do or is this a bug in BIN
D?
Thanks,
Dave Coulthart
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Index: bin/named/zoneconf.c
===
RCS file: /proj/cvs/prod/bind9/bin/named/zoneconf.c,v
retrieving revision 1.171.34.2
diff -u -r1.171.34.2 zoneconf.c
--- bin/named/zoneconf.c7 Mar 2011 04:16:39 - 1.171.34.2
+++ bin/named/zoneconf.c8 Mar 2011 20:44:00 -
@@ -1077,10 +1077,10 @@
INSIST(result == ISC_R_SUCCESS obj != NULL);
if (cfg_obj_isboolean(obj))
ixfrdiff = cfg_obj_asboolean(obj);
- else if (strcasecmp(cfg_obj_asstring(obj), master)
+ else if (!strcasecmp(cfg_obj_asstring(obj), master)
ztype == dns_zone_master)
ixfrdiff = ISC_TRUE;
- else if (strcasecmp(cfg_obj_asstring(obj), slave)
+ else if (!strcasecmp(cfg_obj_asstring(obj), slave)
ztype == dns_zone_slave)
ixfrdiff = ISC_TRUE;
else
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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Re: IXFR manually edited zone files
On Mar 8, 2011, at 3:44 PM, Mark Andrews wrote: In message b840935f-4809-40cf-98c5-029cbbab4...@columbia.edu, David Coulthart writes: It looks like the problem is with setting ixfr-from-differences to master. I f I instead set the option to yes, a journal file is generated IXFR works c orrectly. ... Is this a bug in BIND? Index: bin/named/zoneconf.c === RCS file: /proj/cvs/prod/bind9/bin/named/zoneconf.c,v retrieving revision 1.171.34.2 diff -u -r1.171.34.2 zoneconf.c --- bin/named/zoneconf.c 7 Mar 2011 04:16:39 - 1.171.34.2 +++ bin/named/zoneconf.c 8 Mar 2011 20:44:00 - @@ -1077,10 +1077,10 @@ INSIST(result == ISC_R_SUCCESS obj != NULL); if (cfg_obj_isboolean(obj)) ixfrdiff = cfg_obj_asboolean(obj); - else if (strcasecmp(cfg_obj_asstring(obj), master) + else if (!strcasecmp(cfg_obj_asstring(obj), master) ztype == dns_zone_master) ixfrdiff = ISC_TRUE; - else if (strcasecmp(cfg_obj_asstring(obj), slave) + else if (!strcasecmp(cfg_obj_asstring(obj), slave) ztype == dns_zone_slave) ixfrdiff = ISC_TRUE; else Thank you very much, Mark. I've confirmed this patch fixes the problem. Thanks, Dave Coulthart ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
IXFR manually edited zone files
BIND Version: 9.7.3 on Solaris 9 10 (locally compiled) Our current workflow for managing DNS involves generating master zone files from a database, pushing the new files to a hidden master nameserver then running rndc reload on that nameserver. Based on the ARM a posting to bind-users[1], I enabled ixfr-from-differences master; on the hidden master expecting the master nameserver would generate a diff from the previous zone file in memory and the new one being loaded so it could send an IXFR to the slaves. However, every time the slave requests an IXFR, it gets a non-incremental response has to perform a full AXFR. I've configured this in a test environment with a single zone file so I know the slave has the first version of the zone file before loading the second version on the master it still results in a AXFR-style IXFR. I've explicitly stated the options allow-query allow-transfer in the config, but I do not have allow-updates configured, relying on the implicit default of denying all updates. Is there something I'm missing to get this working? Thanks, Dave Coulthart 1. https://lists.isc.org/pipermail/bind-users/2010-January/078591.html ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: IXFR manually edited zone files
On Mar 7, 2011, at 11:42 AM, Chris Thompson wrote: On Mar 7 2011, David Coulthart wrote: BIND Version: 9.7.3 on Solaris 9 10 (locally compiled) Our current workflow for managing DNS involves generating master zone files from a database, pushing the new files to a hidden master nameserver then running rndc reload on that nameserver. Based on the ARM a posting to bind-users[1], I enabled ixfr-from-differences master; on the hidden master expecting the master nameserver would generate a diff from the previous zone file in memory and the new one being loaded so it could send an IXFR to the slaves. However, every time the slave requests an IXFR, it gets a non-incremental response has to perform a full AXFR. I've configured this in a test environment with a single zone file so I know the slave has the first version of the zone file before loading the second version on the master it still results in a AXFR-style IXFR. I've explicitly stated the options allow-query allow-transfer in the config, but I do not have allow-updates configured, relying on the implicit default of denying all updates. Is there something I'm missing to get this working? Have you tested that the ixfr-from-differences is working at all at the hidden master? E.g. by dig ixfr=[some-old-serial] [zone-name] @[hidden-master] from the slaves (or indeed elsewhere). In my initial testing I enabled debug level 3 on both the master slave. In the slave's log I saw the following: transfer of 'example.com/IN' from 128.59.59.124#53: requesting IXFR for serial 2011030701 transfer of 'example.com/IN' from 128.59.59.124#53: sent request length prefix transfer of 'example.com/IN' from 128.59.59.124#53: sent request data transfer of 'example.com/IN' from 128.59.59.124#53: got nonincremental response I just tested again using dig as you described above and still got a full AXFR even when specifying the serial # that was in the zone file before the reload. From the master's log: client 127.0.0.1#34246: zone transfer 'example.com/IXFR/IN' approved client 127.0.0.1#34246: transfer of 'example.com/IN': AXFR-style IXFR started client 127.0.0.1#34246: transfer of 'example.com/IN': AXFR-style IXFR ended There is also a named-journalprint utility which you can apply to the journal file on the master to check it contains what you hope for. I don't see a journal file being created on the master after I do the reload. The only messages in the master's log about a journal are on initial startup: zone example.com/IN: starting load zone example.com/IN: number of nodes in database: 256 no journal file, but that's OK zone example.com/IN: journal rollforward completed successfully: no journal zone example.com/IN: loaded decrement_reference: delete from rbt: 2468d0 example.com zone_settimer: zone example.com/IN: enter zone example.com/IN: loaded serial 2011030701 On rndc reload, I don't see any mention of a journal being created or destroyed: zone example.com/IN: starting load dns_zone_maintenance: zone example.com/IN: enter zone_settimer: zone example.com/IN: enter zone_loaddone: zone example.com/IN: enter zone example.com/IN: number of nodes in database: 766 zone example.com/IN: loadeddecrement_reference: delete from rbt: 246ed0 example.com replacing zone database calling free_rbtdb(example.com) adjust_quantum - 325 zone_settimer: zone example.com/IN: enter zone example.com/IN: loaded serial 2011030702 done free_rbtdb(example.com) Based on the description of ixfr-from-differences in the ARM, I think a journal file should be created. I have named running as user named, but I've checked permissions on the directory zone file confirmed that named can create files in the directory containing the zone file. If those look OK, then it's something else in the configuration of either master or slaves. I take it you aren't doing anything as obvious as specifying request-ixfr no or provide-ixfr no in server statements. I do not explicitly set these options in my config, relying on them defaulting to yes. Thanks for your help Chris. Dave Coulthart ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
