Known problems on HP-UX platforms
On HP-UX platforms, there are limitations when using LDAP with SSL to communicate with a Netscape directory server.
LDAP Secure Sockets Layer limitation with Netscape LDAP server. The LDAP client has a limitation when using SSL to communicate with a Netscape directory server. If the Netscape directory server has client authentication enabled, the connection fails. If the IBM HTTP Server uses SSL with LDAP to check authentication information on a Netscape Directory Server, ensure that client authentication is not enabled on the directory server.