Questions on Kerberos

[Joseph Kuan]

Hi all,

  I am not sure whether this is right place for these questions. If so, 
I do apologise.

I have been using ethereal to analysis the kerberos packets.

1. I notice that some of the kerberos (windows authentication) packets 
have principal with dollar sign character at the end. Also the principal 
is not the user name, it is actually the hostname. What does it mean?

2. I am trying to measure the response time of windows login. For a 
windows login, can I assume the time taken from AS-REQ/REP to the first 
TGS-REQ/REP ?

Many thanks
Joe

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