1# 2# NTP configuration file (ntp.conf) 3# baldwin.udel.edu 4# 5# This illustrates the use of an external clock with the local clock 6# driver, as well as a multicast server. The prefer keyword on the 7# local clock driver declares an external clock and that the time of 8# this server should not be wiggled by an NTP peer, unless the 9# external source comes unstuck. Note the use of the multicast group 10# ID assigned to NTP, 224.0.1.1, which identifies this as a multicast 11# server rather than a broadcast one. The other NTP peers are known 12# stratum-1 chimes intended as backup should the external clock croak. 13# 14server 127.127.1.0 prefer # local clock driver 15broadcast 224.0.1.1 key 6 ttl 127 16peer rackety.udel.edu 17peer barnstable.udel.edu 18peer mizbeaver.udel.edu 19peer pogo.udel.edu 20# 21# Miscellaneous stuff 22# 23driftfile /etc/ntp.drift # path for drift file 24statsdir /baldwin/ntpstats/ # directory for statistics files 25filegen peerstats file peerstats type day enable 26filegen loopstats file loopstats type day enable 27filegen clockstats file clockstats type day enable 28# 29# Authentication stuff 30# 31keys /usr/local/etc/ntp.keys # path for keys file 32trustedkey 3 4 5 6 14 15 # define trusted keys 33requestkey 15 # key (7) for accessing server variables 34controlkey 15 # key (6) for accessing server variables 35