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title: Managing Greenplum Database Access 
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Securing Greenplum Database includes protecting access to the database through network configuration, database user authentication, and encryption.

-   **[Configuring Client Authentication](client_auth.html)**  
This topic explains how to configure client connections and authentication for Greenplum Database.
-   **[Managing Roles and Privileges](roles_privs.html)**  
The Greenplum Database authorization mechanism stores roles and permissions to access database objects in the database and is administered using SQL statements or command-line utilities.
-   **[About Configuring Row-Level Security Policies](row_security.html)**  
This topic describes how to configure row-level security policies for Greenplum Database tables.

**Parent topic:** [Greenplum Database Administrator Guide](admin_guide.html)

