[root@host1 db_1]# cat /etc/ntp.conf
restrict  127 . 0 . 0 . 1 
restrict - 6  :: 1 

restrict  172 . 16 . 2 . 19 
peer  172 . 16 . 2 . 19 

# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available.
server  127 . 127 . 1 . 0 
fudge    127 . 127 . 1 . 0  stratum  10 

# Drift file.  Put this in a directory which the daemon can write to.
# No symbolic links allowed, either, since the daemon updates the file
# by creating a temporary in the same directory and then rename()'ing
# it to the file.
driftfile /var/lib/ntp/drift

# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography.
keys /etc/ntp/keys
[root@host1 db_1]#