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Tips and Tricks for Newbies

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NTPD Reset Clock at Boot Time

When you enable ntpd in /etc/rc.conf like so

ntpd_flags="-s" # for normal use: ""
if your network interface isn't up, ntpd can hang for a while before the system finishes
booting. Some say they've seen it hang for up to half an hour. Instead of the entry above,
you can use:
if ifconfig fxp0 | grep 'status: active' >/dev/null 2>&1
then
ntpd_flags=-s
else
ntpd_flags=NO
fi
I set ntpd_flags=NO in /etc/rc.conf and then entered the code above in /etc/rc.local
and it works fine. If you've got more than one interface, for instance, maybe you plugged
in your 'wi' PCMCIA card before booting, you can do this:
if ifconfig fxp0 | grep 'status: active' >/dev/null 2>&1 ||
ifconfig wi0 >/dev/null 2>&1
then
ntpd_flags=-s
else
ntpd_flags=NO
fi
That way, if either one's up, ntpd will be able to set the time. If not, the script will set
ntpd_flags to NO and booting will continue.

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