Which FAQ Software can I Use?

 Hi,

I would like to provide Linux based FAQ software for my department where technical people can update the FAQs.

I tired FAQ module on OTRS 3.0.9 but some of the important features (like team wise FAQs, different level of
access on FAQs etc., search FAQ in contents of attachments) are not available in it.

I think independent FAQ Software/ Bulletin Board would resolve most of queries. Please suggest the best
open source FAQ / Bulletin Board that I can try.

 
Thanks and Regards,
Amit Sharma