Falko, I tried this. I changed all the serial numbers on the master zone files, then did a restart of Bind. I then used Webmin to force zone updates on the slave of two of the files, bette-ford.com and niquistanhope.com. I then let the system do it's own thing after that. Here is the log entries showing the updates. I broke it up to make it easier to see.
Code:
Sep 30 16:30:22 server2 named[29985]: zone bette-ford.com/IN: Transfer started.
Sep 30 16:30:22 server2 named[29985]: transfer of 'bette-ford.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#59075
Sep 30 16:30:22 server2 named[29985]: zone bette-ford.com/IN: transferred serial 2008093003
Sep 30 16:30:22 server2 named[29985]: transfer of 'bette-ford.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 16:30:22 server2 named[29985]: zone bette-ford.com/IN: sending notifies (serial 2008093003)
Sep 30 16:32:55 server2 named[29985]: zone niquistanhope.com/IN: Transfer started.
Sep 30 16:32:55 server2 named[29985]: transfer of 'niquistanhope.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#56298
Sep 30 16:32:55 server2 named[29985]: zone niquistanhope.com/IN: transferred serial 2008093003
Sep 30 16:32:55 server2 named[29985]: transfer of 'niquistanhope.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 16:32:55 server2 named[29985]: zone niquistanhope.com/IN: sending notifies (serial 2008093003)
Sep 30 16:39:59 server2 named[25319]: zone ourbookspace.com/IN: Transfer started.
Sep 30 16:39:59 server2 named[25319]: transfer of 'ourbookspace.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#41863
Sep 30 16:39:59 server2 named[25319]: dumping master file: tmp-3Bk5cAPzZU: open: permission denied
Sep 30 16:39:59 server2 named[25319]: transfer of 'ourbookspace.com/IN' from 192.168.xx.xxx#53: failed while receiving responses: permission denied
Sep 30 16:39:59 server2 named[25319]: transfer of 'ourbookspace.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 16:44:21 server2 named[29985]: client 88.191.64.64#52197: zone transfer 'tlthost.net/AXFR/IN' denied
Sep 30 16:46:08 server2 named[29985]: client 87.98.164.164#46434: zone transfer 'tlthost.net/AXFR/IN' denied
Sep 30 16:51:37 server2 named[29985]: zone ourbookspace.com/IN: Transfer started.
Sep 30 16:51:37 server2 named[29985]: transfer of 'ourbookspace.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#58254
Sep 30 16:51:37 server2 named[29985]: zone ourbookspace.com/IN: transferred serial 2008093003
Sep 30 16:51:37 server2 named[29985]: transfer of 'ourbookspace.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 16:51:37 server2 named[29985]: zone ourbookspace.com/IN: sending notifies (serial 2008093003)
Sep 30 17:12:35 server2 named[29985]: zone vonniehughes.com/IN: Transfer started.
Sep 30 17:12:35 server2 named[29985]: transfer of 'vonniehughes.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#55451
Sep 30 17:12:35 server2 named[29985]: zone vonniehughes.com/IN: transferred serial 2008093003
Sep 30 17:12:35 server2 named[29985]: transfer of 'vonniehughes.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 17:12:35 server2 named[29985]: zone vonniehughes.com/IN: sending notifies (serial 2008093003)
Sep 30 17:18:33 server2 named[29985]: zone music-ink.com/IN: Transfer started.
Sep 30 17:18:33 server2 named[29985]: transfer of 'music-ink.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#41365
Sep 30 17:18:33 server2 named[29985]: zone music-ink.com/IN: transferred serial 2008093003
Sep 30 17:18:33 server2 named[29985]: transfer of 'music-ink.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 17:18:33 server2 named[29985]: zone music-ink.com/IN: sending notifies (serial 2008093003)
Sep 30 17:46:03 server2 named[29985]: client 195.234.42.1#52919: zone transfer 'tlthost.net/AXFR/IN' denied
Sep 30 17:48:34 server2 named[29985]: client 195.234.42.1#54338: zone transfer 'tlthost.net/AXFR/IN' denied
Sep 30 17:54:51 server2 named[25319]: zone 191.223.64.in-addr.arpa/IN: Transfer started.
Sep 30 17:54:51 server2 named[25319]: transfer of '191.223.64.in-addr.arpa/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#54348
Sep 30 17:54:51 server2 named[25319]: transfer of '191.223.64.in-addr.arpa/IN' from 192.168.xx.xxx#53: failed while receiving responses: REFUSED
Sep 30 17:54:51 server2 named[25319]: transfer of '191.223.64.in-addr.arpa/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 18:01:44 server2 named[29985]: zone tlthost.net/IN: Transfer started.
Sep 30 18:01:44 server2 named[29985]: transfer of 'tlthost.net/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#48690
Sep 30 18:01:44 server2 named[29985]: zone tlthost.net/IN: transferred serial 2008093003
Sep 30 18:01:44 server2 named[29985]: transfer of 'tlthost.net/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 18:01:44 server2 named[29985]: zone tlthost.net/IN: sending notifies (serial 2008093003)
Sep 30 18:06:44 server2 named[29985]: zone blacks-abroad.com/IN: Transfer started.
Sep 30 18:06:44 server2 named[29985]: transfer of 'blacks-abroad.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#43491
Sep 30 18:06:44 server2 named[29985]: zone blacks-abroad.com/IN: transferred serial 2008093003
Sep 30 18:06:44 server2 named[29985]: transfer of 'blacks-abroad.com/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 18:06:44 server2 named[29985]: zone blacks-abroad.com/IN: sending notifies (serial 2008093003)
Sep 30 18:19:43 server2 named[25319]: zone tlthost.net/IN: Transfer started.
Sep 30 18:19:43 server2 named[25319]: transfer of 'tlthost.net/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#39139
Sep 30 18:19:43 server2 named[25319]: dumping master file: tmp-TIFUF7mdZe: open: permission denied
Sep 30 18:19:43 server2 named[25319]: transfer of 'tlthost.net/IN' from 192.168.xx.xxx#53: failed while receiving responses: permission denied
Sep 30 18:19:43 server2 named[25319]: transfer of 'tlthost.net/IN' from 192.168.xx.xxx#53: end of transfer
Sep 30 18:32:34 server2 named[25319]: transfer of 'music-ink.com/IN' from 192.168.xx.xxx#53: connected using 192.168.xx.xxx#55507
Sep 30 18:32:34 server2 named[25319]: dumping master file: tmp-j2wvUvmPaP: open: permission denied
Sep 30 18:32:34 server2 named[25319]: transfer of 'music-ink.com/IN' from 192.168.xx.xxx#53: failed while receiving responses: permission denied
Sep 30 18:32:34 server2 named[25319]: transfer of 'music-ink.com/IN' from 192.168.xx.xxx#53: end of transfer
I've checked, and all the ones I changed have updated on the slave zones now. As you can see, I'm still getting "permission denied" errors though. At least it seems that the updates are getting through.