cannot load data from master automatically

[Bill Larson]

It sounds like your aren't incrementing your serial number for the
zone file when you modify it.  DNS uses this serial number to identify
if a zone on a secondary needs to be updated.

Bill Larson

> The problem is: everytime I modify the master db, I must reload the db
> in slave manually. If I don't do it manually ( use named-xfer ), the
> change will never reach the slave server, even that I set refresh time
> to 10 second, wait for serval days. Of course, the 'notify' function of
> bind doesn't work either. Except for this inconvenience, these two
> servers work well.