Danny,

When I first asked the Number Czar for an NTP port number circa 1980, I purposely asked for both a UDP and TCP port, primarily to avoid the possibility that some j-random incompatible service might be assigned TCP port 123. Secondarily, I wanted to sustain the possibility that some NTP monitoring function might in fact wish to use the TCP port. That remains a possibility.

Dave

Danny Mayer wrote:

Felix Tilley wrote:

On Sun, 03 Sep 2006 14:51:35 -0700, Wolfgang S. Rupprecht wrote:


123/tcp ????
When was the last time you saw a ntp tcp packet?

-wolfgang

I don't know if NTP uses TCP, UDP or both.  All I know is time.ucla.edu
does not respond to ntpdate (Linux version).  This started a few days ago.



NTP has never used TCP.

Where did you see that this system has public access? The notice
attached to the list for tick (time is a CNAME) shows the following:

AccessDetails:   Open access to stratum-2 servers and to UCLA clients.

So why are you trying to access it?

Danny
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