One step at a time.
With PAM-LDAP enabled, can you login at the keyboard? If so, then you should be able to ssh in. Try to test each layer.
A word of caution about using LDAP, first spot of trouble in your openldap stack, you STILL need auth to keep running. I love it, but know that you better have it running in some kind of high-availability way on real n+1 type hardware with real disk storage. (shared raid, iscsi cluster, fibrechannel, etc) Openldap doesn't need much horsepower, so even an older enterprise-ish stack should do fine. I like HP's SCSI MSA cluster. Used is a bargain!
Last edited by mpapet; 07-20-2012 at 03:19 PM.