could anyone explain the behaviour of DNS slave.
i am testing dns server, for internal purpose, and after configuring master slave everything works fine, but i am willing to understand the mechanism behind,
lets say, dnsmaster.net and dnsslave.net[my 2 dns]
however, i wanted to make dnsslave to be available to serve query if dnsmaster.net is down. [well it works until now]
having said that, i want to update records on dnsslave.net [while dnsmaster.net is down]. i can resolve things from dns slave but turning off master and updating records, but not until i restart dnsslave.net.
So, is this something caused by, expiry time on soa?
43200 ; refresh (12 hours) 900 ; retry (15 minutes) 1209600 ; expire (2 weeks) 300 ; minimum (5 minutes)
EDIT: I know what is the purpose of DNS master and slave, i am talking while dnsmaster is down, slave is only in use and i need to update A record. [at this condition dns doesn't work with reload it only works on restart, so anyone with better knowledge and experience please share your view.]