Patrick, : I'm having difficulty finding any on-line documentation about HTB that : is both complete and authoritative. I have two questions: What search engine do you use? http://www.google.com/search?num=20&hl=en&lr=&ie=UTF-8&oe=UTF-8&safe=off&q=htb+linux&btnG=Google+Search The first two hits from google are the HTB home page, provided courtesy of Martin 'devik' Devera. http://luxik.cdi.cz/~devik/qos/htb/ : 1) Is there any such documentation? What shortcoming do you find at Martin Devera's page? http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm : 2) If there isn't, then I presume I will need to read the code. It depends on the nature of your question is. You will find a great deal of knowledge in this mailing list about HTB, so if you have a specific and/or particular question, you should ask it here. I would suggest reading two other sources about HTB before asking here: http://www.docum.org/ # Stef Coene's site http://mailman.ds9a.nl/pipermail/lartc/ # LARTC mailing list archive : Can you give me pointers to where I can get the source? Source is available here: http://luxik.cdi.cz/~devik/qos/htb/v3/htb3.6-020525.tgz After you have consumed some of the above documentation, your questions should be answered. -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@xxxxxxxxxxxxxx