## User Authentication You can use authentication by local user ID and Password, or authentication by LDAP such as Active Directory. Single sign-on can also be achieved by using a Windows terminal logged in to Active Directory. ## Related Information - [Linking Pleasanter with Active Directory](/manual/active-directory) - [Synchronizing Active Directory user information with Pleasanter](/manual/active-directory-sync) - [Setting up Pleasanter for single sign-on](/manual/active-directory-sso)