ntpd

ntpd

-g seçeneği

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-g

Normally, ntpd exits with a message to the system log if the offset exceeds the panic threshold, which is 1000 s by default. This option allows the time to be set to any value without restriction; however, this can happen only once. If the threshold is exceeded after that, ntpd will exit with a message to the system log. This option can be used with the -q and -x options. See the tinker command for other options.

Örnek

Şöyle yaparız

ntpd -g -x -q pool.ntp.org

ntp.conf Dosyası
Giriş
Bu dosyanın yolu /etc/ntp.conf şeklinde.

Örnek - client

Şöyle yaparız

driftfile /var/lib/ntp/ntp.drift
leapfile /usr/share/zoneinfo/leap-seconds.list

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

server 192.168.0.51

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

# 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

minpoll Alanı
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minpoll minpoll
maxpoll maxpoll
    These options specify the minimum and maximum poll intervals for NTP 
    messages, in seconds as a power of two. The maximum poll interval 
    defaults to 10 (1024 s), but can be increased by the maxpoll option to 
    an upper limit of 17 (36 h). The minimum poll interval defaults to 6 (64 s), 
    but can be decreased by the minpoll option to a lower limit of 3 (8 s).