the VNC documentation from the AT&T site, actually the RFB Protocol 
specification, states VNC uses a challenge-response system.  The challenges 
is a 16 byte random number encrypted with the password given on the client 
side. the "authentication" packet is sent to the server.  The protocol says 
the response is either "OK" or failed.  since the client issues the 
challenge, where is the description of the response the server makes to the 
client?

I guess what I am asking is what really happens in the authentication stage 
since the protocol doc seems to be missing something.

the protocol spec also says the server can decided if there have been too 
many authentication failures.  What is too many?

Thanks
//chris


--
Chris Hare, CISSP, CISA
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