Apologies if this is off topic. I'd like to decode the Kerberos PAC which is NDR decoded and I know Samba has all the code to decode a PAC. I looked at http://msdn.microsoft.com/en-us/library/cc237933.aspx as an example and read the opengroup document, but I am still lost. Is there a good book, link, course about NDR endocding/decoding ? Thank you Markus