HI all, there is a bug in named.master.conf for centos. The slave files are stored in /var/names/slaves. The config file needs to have "salves/sec." in it to ensure that the slave domains are created. Otherwise it attempts to write to /var/named and get permission denied errors.
Not if you follow the Perfect Setup for CentOS and do what is described in step 7: http://www.howtoforge.com/perfect_setup_centos_4.3_p4