Hello folks,
I work for a large corporation, while myself I am a big fan of open-source (hope that doesnt sound contradictory

).
I will be setting up a general bulletin board for us here (for around a thousand odd users), and I want to ask ye-all-knowledgeable-folks for your recommendation on some bulletin board software which ... (in order of importance) -
1) Is FREE for commercial use.
2) Can use LDAP for authentication.
3) Easily configurable for people who aren't PERL/PHP gurus (like me

)
I will probably use RHEL 3 as base, but that shouldn't affect your judgement (of course it should run on

).
TIA!
~Raj