Monday, May 17, 2010

ntpdate - no server suitable for synchronization found

SkyHi @ Monday, May 17, 2010

Fresh installation of ntp v4 on redhat 8.

Ntpd and ntpdate will not communicate with any ntp server, giving a "no server suitable for synchronization found" message.

However, doing ntpdate -d (for instance) works fine.

It turns out I need to use an unprivileged port with the -u option. The -d option automatically does this. So this will work:

ntpdate -u

Somewhere in my setup here port 123 is a problem. But no matter, just run ntpdate from crontab once a day (rather than ntpd) and all will be well.