How Master DNS - Slave replication

[karlochacon]

hi guys

I configured a master DNS server 192.168.2.10 working OK.
after that I configure a DNS Slave Server (92.168.2.11)the initial replication worked fine. .
this is test environment for my certification.

I see how the zones from my master are transferred
zones in Master
training.com.db

transferred zone to my slave when I started named service
sec.training.com.db

that's OK

but I added some IPs to resolve to my master zone
webserver IN A 192.168.2.30
fileserver IN A 192.168.2.31

I restart/reload named on master and after that I go to slave and restart/reload but zones wuth the new values are not replicated....

any idea how long does it take for slave to take the changes from master? how is the procedure manual or automatic?

I see If I go to slave and delete sec.training.com and restart named the zone with the changes is transferred but that is very manual...

I am including my DNS Configuration so you can take a look
thanks a lot

[antony_pradeep]

in master slave configuration, zone transfer only happens if master zone has greater serial number than slave, u said that in first time its updating so that there no problem with zone transfer either permission problem or any configuration, only thing is u need to give greater value of serial number to master thats it.. for checking purpose give refresh time 10 secs(next to serial number).. and dont forget to see the logs of named service in syslog ..