This policy setting determines whether the Lightweight Directory Access Protocol (LDAP) server requires LDAP clients to negotiate data signing. This policy setting determines whether the LDAP server requires a signature before it will negotiate with LDAP clients. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options!Domain controller: LDAP server signing requirements (2) REG: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NTDS\Parameters!ldapserverintegrity