bind/named.sysconfig

# BIND named process options
# ~~~~~~~~~~~~~~~~~~~~~~~~~~
# Currently, you can use the following options:
#
# ROOTDIR="/some/where"  --  will run named in a chroot environment.
#                            you must set up the chroot environment 
#                            (install the bind-chroot package) before
#                            doing this.
#
# OPTIONS="whatever"     --  These additional options will be passed to named
#                            at startup. Don't add -t here, use ROOTDIR instead.
#
# ENABLE_ZONE_WRITE=yes  --  If SELinux is disabled, then allow named to write
#                            its zone files and create files in its $ROOTDIR/var/named
#                            directory, necessary for DDNS and slave zone transfers.
#                            Slave zones should reside in the $ROOTDIR/var/named/slaves
#                            directory, in which case you would not need to enable zone
#                            writes. If SELinux is enabled, you must use only the 
#                            'named_write_master_zones' variable to enable zone writes.
#
# ENABLE_SDB=yes         --  This enables use of 'named_sdb', which has support
#		         --  for the ldap, pgsql and dir zone database backends
#		         --  compiled in, to be used instead of named.