54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
Several steps need to be taken to properly configure the NTP daemon.
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1) First, create or update the file !!SYSCONFDIR!!/ntp.conf. Several
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example configuration files can be found here:
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!!PREFIX!!/share/examples/ntp.
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2) Next, several command scripts for system startup need to be
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modified.
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(a) Add the following to /etc/rc.securelevel:
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# Securelevel > 1 does not allow the clock to be set backwards
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if [ $securelevel -gt 1 -a X"${xntpdate_flags}" != X"NO" \
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-a -x /usr/local/sbin/ntpdate ]; then
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echo -n ' ntpdate'
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/usr/local/sbin/ntpdate -b ${xntpdate_flags} >/dev/null
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fi
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if [ X"${xntpd}" == X"YES" -a -x /usr/local/sbin/tickadj \
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-a -e /etc/ntp.conf ]; then
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echo -n ' tickadj'; /usr/local/sbin/tickadj -Aq
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fi
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(b) Add the following to /etc/rc.local:
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# run ntpdate prior to ntpd
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if [ $securelevel -le 1 -a X"${xntpdate_flags}" != X"NO" \
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-a -x /usr/local/sbin/ntpdate ]; then
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echo -n ' ntpdate'
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/usr/local/sbin/ntpdate -b ${xntpdate_flags} >/dev/null
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fi
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if [ X"${xntpd}" == X"YES" -a -x /usr/local/sbin/ntpd \
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-a -e /etc/ntp.conf ]; then
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xntpd_flags="-p /var/run/ntpd.pid"
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if [ $securelevel -ge 1 ]; then
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xntpd_flags="${xntpd_flags} -x"
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fi
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echo -n ' ntpd'; /usr/local/sbin/ntpd ${xntpd_flags}
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fi
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(c) Then, in /etc/rc.conf, set the following variables accordingly.
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xntpd=YES # change to NO to disable
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xntpdate_flags="pool.ntp.org" # set to list of NTP servers
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(refer to rc.conf(8) for more information regarding it's use)
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3) Finally, restart your system. The system restart is necessary as
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tickadj is run from /etc/rc.securelevel before the system securelevel
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is raised.
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