Installation and Upgrade > Installation and Configuration Guide > Advanced Configurations > Configuring PTC HTTP Server and Embedded Servlet Engine With Other Options > Specifying Web Server Authentication > LDAP Configuration
  
LDAP Configuration
Multiple LDAP URLs can be defined for authentication. PTC HTTP Server uses named authentication providers for each LDAP URL. By default, the providers are [WebAppName]-EnterpriseLdap and [WebAppName]-AdministrativeLdap. When a provider name is specified, "[WebAppName]-" is automatically pre-pended to the provider name in the Apache configuration.