NTPD: use an unrestricted port for communication

Posted by Cetra on Stack Overflow See other posts from Stack Overflow or by Cetra
Published on 2008-10-24T07:18:20Z Indexed on 2010/06/14 15:32 UTC
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unix

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time

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ntpd

When querying ntp servers with the command ntpdate, I can use the -u argument to make the source port an unrestricted port (port 1024 and above).

With ntpd, which is meant to run in the background, I can't seem to find a way to turn this option on. So the source port is always 123. It's playing around horribly with my firewall configuration.

Is there a configuration option in ntp.conf to make it use a random source port?

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