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5.6.2. Configuring Booleans

The setsebool boolean-name x command turns Booleans on or off, where boolean-name is a Boolean name, and x is either on to turn the Boolean on, or off to turn it off.
The following example demonstrates configuring the httpd_can_network_connect_db Boolean:
  1. By default, the httpd_can_network_connect_db Boolean is off, preventing Apache HTTP Server scripts and modules from connecting to database servers:
    $ /usr/sbin/getsebool httpd_can_network_connect_db
    httpd_can_network_connect_db --> off
    
    
  2. To temporarily enable Apache HTTP Server scripts and modules to connect to database servers, run the setsebool httpd_can_network_connect_db on command as the Linux root user.
  3. Use the getsebool httpd_can_network_connect_db command to verify the Boolean is turned on:
    $ /usr/sbin/getsebool httpd_can_network_connect_db
    httpd_can_network_connect_db --> on
    
    
    This allows Apache HTTP Server scripts and modules to connect to database servers.
  4. This change is not persistent across reboots. To make changes persistent across reboots, run the setsebool -P boolean-name on command as the Linux root user:
    # /usr/sbin/setsebool -P httpd_can_network_connect_db on
    
    
  5. To temporarily revert to the default behavior, as the Linux root user, run the setsebool httpd_can_network_connect_db off command. For changes that persist across reboots, run the setsebool -P httpd_can_network_connect_db off command.