[ntp:hackers] NTP clients using source ports lower than 123

Todd Glassey tglassey at earthlink.net
Fri Dec 18 21:16:53 UTC 2009


Brian Utterback wrote:
> Danny Mayer wrote:
>
>   
>> I think that is a policy decision in which case we would need to put
>> such a restriction into the configuration file for an admin to apply as
>> they see fit. In theory it should be either 123 or > 1023.
>>
>> Danny
>>
>>     
>
> Why in the world would you disallow the other ports below 1024?
>   
The retort could be that they are already used for predefined services 
for the most part so NTP on them would conflict with other well known 
services definitions.
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