[ntp:questions] Re: server's address in ntp payload?

Danny Mayer mayer at gis.net
Sun Nov 20 17:27:38 UTC 2005


David Schwartz wrote:
> "David L. Mills" <mills at udel.edu> wrote in message 
> news:dllhoh$4e3$1 at dewey.udel.edu...
> 
> 
>>David,
>>
>>That's what the server private seed is for. It is never divulged.
> 
> 
>     If it's never divulged, how can you use it to tell you who sent you the 
> packet?
> 
>     For example, suppose I have two servers, A and B. A is talking to a 
> third server C. I wish to determine if a server B is talking to is that same 
> server C, or a distinct server, D. How will a session hash help me do that? 
> On the other hand, a public server ID that is globally unique *will* help me 
> do that. The source IP won't, because a single machine can have multiple 
> addresses.
> 

That's what the refid is for.

Danny
>     DS



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