Which command generates password hashes suitable for use in slapd.conf?

The command that generates password hashes suitable for use in slapd.conf is slappasswd. This utility is specifically designed for creating hashed passwords for OpenLDAP, ensuring that passwords stored in the configuration files are secure and not stored in plain text.

When using slappasswd, it applies the appropriate hashing algorithm specified in the LDAP configuration, commonly using schemes like SSHA (Salted Secure Hash Algorithm). This is necessary for maintaining security within directory services, as it prevents the disclosure of user passwords and allows for secure authentication methods.

The other options listed, while they may seem relevant, do not serve as replacements or alternatives for generating password hashes specifically for slapd.conf. Each of them may be related to password management or generation in different contexts but lacks the precise functionality required for compatibility with OpenLDAP's configuration.