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November 21, 2023 18:18
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Network Time Protocol (NTP) Server configuration for using the local clock as authoritative source and providing NTP time to LLA clients
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# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help | |
driftfile /var/lib/ntp/ntp.drift | |
# Leap seconds definition provided by tzdata | |
leapfile /usr/share/zoneinfo/leap-seconds.list | |
# Enable this if you want statistics to be logged. | |
#statsdir /var/log/ntpstats/ | |
statistics loopstats peerstats clockstats | |
filegen loopstats file loopstats type day enable | |
filegen peerstats file peerstats type day enable | |
filegen clockstats file clockstats type day enable | |
## Specify one or more NTP servers. | |
server 127.127.1.0 prefer | |
fudge 127.127.1.0 stratum 10 | |
## Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for | |
# details. The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions> | |
# might also be helpful. | |
# | |
# Note that "restrict" applies to both servers and clients, so a configuration | |
# that might be intended to block requests from certain clients could also end | |
# up blocking replies from your own upstream servers. | |
# By default, exchange time with everybody, but don't allow configuration. | |
restrict -4 default kod notrap nomodify nopeer noquery limited | |
restrict -6 default kod notrap nomodify nopeer noquery limited | |
# Local users may interrogate the ntp server more closely. | |
restrict 127.0.0.1 | |
restrict ::1 | |
# Needed for adding pool entries | |
restrict source notrap nomodify noquery | |
# Clients from this (example!) subnet have unlimited access, but only if | |
# cryptographically authenticated. | |
#restrict 192.168.123.0 mask 255.255.255.0 notrust | |
# If you want to provide time to your local subnet, change the next line. | |
# (Again, the address is an example only.) | |
# The following line enables broadcasting time on the self-negotiated adress range of bottlenose | |
broadcast 169.254.255.255 | |
# If you want to listen to time broadcasts on your local subnet, de-comment the | |
# next lines. Please do this only if you trust everybody on the network! | |
#disable auth | |
#broadcastclient |
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