This is one of the most widely used authentication methods in most organizations. If you do not see the LDAP option listed under the Access Control | Security Realm section, then check for the LDAP plugin.
The following option, as shown in the following screenshot allows Jenkins to authenticate users using an LDAP server. Contact the IT administration team in your organization to provide the LDAP server details (if your organization uses LDAP).
For more information about the LDAP configuration, refer to the LDAP plugin page: https://wiki.jenkins.io/display/JENKINS/LDAP+Plugin.
