:original_name: dds_faq_0104.html .. _dds_faq_0104: Connection and Access FAQs ========================== - :ref:`Can an External Server Access the DDS DB Instance? ` - :ref:`What Is the Number of DDS Database Connections? ` - :ref:`What Should I Do If the ECS Cannot Connect to a DDS DB Instance? ` - :ref:`What Should I Do If a Database Client Problem Causes a Connection Failure? ` - :ref:`What Should I Do If a DDS Server Problem Causes a Connection Failure? ` - :ref:`How Can My Applications Access a DDS DB Instance in a VPC? ` - :ref:`Do Applications Need to Support Automatic Reconnecting to the DDS Database? ` - :ref:`How Can I Create and Log In to an ECS? ` - :ref:`How Can I Install a MongoDB Client? ` .. toctree:: :maxdepth: 1 :hidden: can_an_external_server_access_the_dds_db_instance what_is_the_number_of_dds_database_connections what_should_i_do_if_the_ecs_cannot_connect_to_a_dds_db_instance what_should_i_do_if_a_database_client_problem_causes_a_connection_failure what_should_i_do_if_a_dds_server_problem_causes_a_connection_failure how_can_my_applications_access_a_dds_db_instance_in_a_vpc do_applications_need_to_support_automatic_reconnecting_to_the_dds_database how_can_i_create_and_log_in_to_an_ecs how_can_i_install_a_mongodb_client