h2. Install ntpdate$ apt-get install ntpdateh2. Edit _/etc/default/ntpdate_# servers to check NTPSERVERS="ntp.nc.u-tokyo.ac.jp clock.nc.fukuoka-u.ac.jp clock.tl.fukuoka-u.ac.jp"h2. Add ntpdate to the crontab$ /etc/init.d/ntpdate start $ export EDITOR=vi; crontab -e 0 * * * * /etc/init.d/ntpdate startCan I use rdate for this?