You might like to take a look at the [url=http://sourceforge.net/project/showfiles.php?group_id=160495&package_id=219133]LDAP plugin[/url]

There's also a post somewhere on the forums ( if I find it I'll link it ) which discusses sharing logins between a forum ( phpbb I *think* ) and b2evo.

Between them they should help you get started.

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Please let us know how you get on with thsi project as I am interested in doing something like this too.

Hi Bernard! Well, so far, Im (still) "studing" the b2evo system, in order to respond Yabba without getting a "do your homework" direct answer :P Yet, maybe it could be intresting to joint efforts between all the intrested parties in having such integration became a truth (so far, I handle to manage -thanks to Yabba- the integration between diff b2evo installations; something that I found particulary handy)

PS: Anyone did start something like this in the past? Which integrations where previously accomplished? Any examples?

Some more homework for you ;)

These are a few of the threads I mananged to dig up, they have some bits and bobs of information that may be useful
[url=http://forums.b2evolution.net/viewtopic.php?t=9679&highlight=ldap]smf integration[/url]
[url=http://forums.b2evolution.net/viewtopic.php?t=8572&highlight=ldap]Session variable ?[/url]
[url=http://forums.b2evolution.net/viewtopic.php?t=3218&highlight=ldap]b2 blogs and authenticating against an LDAP server[/url]
[url=http://forums.b2evolution.net/viewtopic.php?t=6232&highlight=ldap]How difficult would a vbulletin-authentification plugin be?[/url]

I've never used the AlternateAuthentication hooks, so I can't really give you more detailed information without playing around under the hood, but I did integrate smf and 0.9.0.1 ( or summat equally antiquated ) so it's definately doable

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