OS X client gets SSL certificate error when trying to join OD I switched from self signed to signing my own certificates using a CA I created on the server. OS X Server has a list of the certificates outlined in blue now for its hostname, Code Signing Certificate, and OD Intermediate CA. I have the CA I created copied to my client.

How can I resolve this SSL issue?
The OD server on 10.10 uses the identity certificate pointed to by the "MACHINE_IDENTITY" identity preference. Using Keychain Access or the security command line tool change the identity preference to point to your new CA signed cert.