Linux – sync time on linux using ntp and persist it

Stop ntpd, run ntpdate -u 0.europe.pool.ntp.org 3 times, start ntpd, check up on ntpq -p, delay, offset and jitter should be non-zero.

As Pawel has said, remove the local clock line in your ntp.conf. In fact, remove everything, pretty much. If you have a working, sync'ed NTP source on your local network that's willing to act as a server, then clients really only need one line in their ntp.conf, which should read

server ntp.intranet.example.com

or, for fastest syncing,

server ntp.intranet.example.com burst

(the latter puts more load on the server at service start time, but since it's your server, you can say "i permit that", if you want faster syncing at ntpd start time).

Don't forget to put ntp.intranet.example.com in /etc/ntp/step-tickers, or wherever your distro keeps that file, so the clocks of clients can be hard-synced at startup time.