chroot for BIND 9

There may be permission issues when using bind-chroot

Example log entry in the named log file:

general: error: dumping master file: tmp-tAj6kdgzCl: open: permission denied
xfer-in: error: transfer of 'lk/IN' from 192.248.8.17#53: failed while receiving responses: permission denied

The issue is due to permissions in the bind directories

Set the permissions as follows

chmod 755 /var/named/
chmod 775 /var/named/chroot/
chmod 775 /var/named/chroot/var/
chmod 775 /var/named/chroot/var/named/
chmod 775 /var/named/chroot/var/run/
chmod 777 /var/named/chroot/var/run/named/

Good reference:
http://hostechsupport.com/forums/showthread.php?620-Install-A-Chrooted-DNS-Server-%28BIND9%29