Debian Quick and Dirty
aptitude install ntpdate && ntpdate pool.ntp.org && \
hwclock --systohc && \
aptitude purge ntpdate && aptitude install ntp && \
sed -i s/debian.pool/de.pool/g /etc/ntp.conf && /etc/init.d/ntp restart
Uhrenvergleich
$ ssh app01.example.com "date --rfc-3339=ns" ; ssh app2.example.com "date --rfc-3339=ns"
2012-11-02 10:43:45.608171723+01:00
2012-11-02 10:40:51.491816591+01:00
Useful Debugging Krempel
ntpq -p de.pool.ntp.org
ntpdate -d de.pool.ntp.org