A LDAP directory offers a single, logically centralized, hierarchical store to keep data, like information about users, groups, mailboxes, services, etc. There are a number of applications out there than can leverage this LDAP store. For example, PAM can authenticate by checking against an LDAP directory, Cyrus-IMAP can check whether a certain user has a [...]

libuser is a collection of libraries and tools to manage users and groups under Linux or UNIX-like systems. libuser has several modules allowing to manage users and groups through different backends, like local (password and shadow) and LDAP (the LDAP backend has been somewhat unusable up to version 0.52).
The LDAP module, however, requires the user [...]

The modrdn LDAP operation allows an authorized user to rename an LDAP entry’s RDN (that is, modifying the RDN of that entry).
Optionally, the modrdn operation can keep the old attributes that form the pristine RDN. This can be accomplished by specifiying deleteOldRDN:0 at the end of the modrdn data. If deleteOldRND:1 is specified at [...]

Fedora Directory Server protects its internal, software-based, cryptographic repository with a PIN (passphrase).
When an instance of a Fedora Directory Server is configured for SSL/TLS support, by default, the start-up script interactively prompts for that PIN in order to unlock the private key. This can be a problem for automated system start-ups.
However, there is a way [...]

From RFC2251, Section 4,6, “Modify Operation”:
The Modify Operation cannot be used to remove from an entry any of its distinguised values, those values which form the entry’s relative distinguised name. An attempt to do so will result in the server returning the error notAllowedOnRDN. The Modify DN Operation described in section 4.9 is used to [...]