# Server configuration and authentication

Refer to the following specifications, as applicable, to configure role, authorization, and security settings.

* [Configuring NodeGraph with SSL/TLS](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/Configuring_NodeGraph_with_SSL_TLS.htm)

  Configure and troubleshoot security layers.

* [Authentication](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/Authentication.htm)

  Supported authentication types and their behaviors are discussed here.

* [Internal authentication](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/Internal_authentication.htm)

  Create an internal admin user on your NodeGraph instance.

* [User management with connection to active directory](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/User_management_connection_active_directory.htm)

  Manage users by defining the AD domain.

* [NTLM authorization](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/NTLM_authorization.htm)

  Define a user or group in the Users setting.

* [Header authentication](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/Header_authentication.htm)

  Options for authentication Header.

* [SAML authorization](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/SAML_authorization.htm)

  Enable SAML SSO.

* [NodeGraph server configuration](https://help.qlik.com/en-US/nodegraph/Content/NodeGraph/Documentation/Configuring_NodeGraph/NodeGraph_server_configuration.htm)

  Editing the configuration file.