My favourite Single Signon solution (Atlassian Crowd) now seems to have support for OsX server - I now need to test this:

Re: Crowd Support with Open Directory on Mac OS X Server.
Posted: May 2, 2008 2:06 AM in response to: Jason
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Hi Jason,

We didn't get Open Directory support implemented for 1.3.

For 1.4, we'll have Read-Only support for LDAP directories that use the RFC2307/POSIX schema. This should enable support for Open Directory Server, though I haven't specifically tested it yet

Note: you won't be able to create users from Crowd - we won't have the ability to create the necessary uidNumber, gidNumber, and home directory attributes. We plan on adding that capability in the medium-term.

1.4 will be out within the next fortnight.

Regards,
Dave.

Crowd is Atlassians excellent Single Sign on and authentication application - it now has a connector to OsX server:

I found this explanation on OsX's portable home directories good (warning - you really need OsX server 10.5 to use this):

Setting up Atlasssian Confluence (or indeed any Atlassian product) running under OsX Server 10.5 is not covered in any great detail in their installation documentation.

After downloading the WAR version of Confluence, this will automatically be expanded into a directory something like :

move the "confluence" directory inside the expanded directory to "/Library/Tomcat/webapps", and then make a new file "/Library/Tomcat/conf/confluence.xml" with the following content :

<Context path="/confluence" docBase="/Library/Tomcat/webapps/confluence" debug="0" reloadable="true"/>

In the Tomcat Manager "/Confluence" should now have popped up as a application, even though you now have to set up a base directory for Confluence somewhere...

A short tutorial on enabling OpenID-LDAP on OsX - this could be very important

OpenID and LDAP
edit David P. Janes 2008-05-14 20:43 UTC add comment openid · ldap · enterprise 2.0
Many enterprises - include most I would guess that are Microsoft-centric - use LDAP to establish user identity and profiles.In the Web 2.0 world, the emerging standard is OpenID. Is there a way to use OpenID to provide logins within the Enterprise buthave it backed by LDAP, the obvious benefit being one could install off-the-shelf intranet tools inside one's organization butnot have to LDAP-enable them or create a parallel account system

The OpenID-LDAP Project (http://www.openid-ldap.org/) offers such a tool.
We're testing this on a Macintosh, but there seems to be no reason this won't work on any UNIX-y system.