LDAP White Pages Plugin
This is a plugin that makes hyperlinks out of (ldap stored) usernames, and provides some meta information stored in the ldap directory about the users.
If you have any issues, create a new ticket.
Download the zipped source from here.
General instructions on installing Trac plugins can be found on the TracPlugins page.
In your ../conf/trac.ini file add this line to the components section:
[components] ldapwpplugin.* = enabled
and add this stanza, for example on the bottom of the file:
[ldap-wp] ldap_uri = ldap://localhost ldap_user_rdn = ldap_user_filter = objectClass=posixAccount
Note that these values are the defaults, so if these are good enough you won't have to add this part.