The setsebool
command is used to modify the boolean value of each rule in the SElinux policy. SElinux is a security enhancement to Linux which allows administrators and users to have control over access control decisions in the system. SElinux policy rules are enforced by the kernel, and the setsebool
command allows for modification of these rules.
Overview
The setsebool
command is used to modify the boolean value of each rule in the SElinux policy. The syntax for the command is as follows:
setsebool [-P] boolean_value
The -P
option is used to make the changes persistent across reboots. Without this option, the changes will only be temporary and will be lost upon a system reboot.
The boolean_value
is the name of the boolean to be modified. The setsebool
command can be used to set a boolean to either on
or off
. For example, to turn on the httpd_can_network_connect
boolean, the following command can be used:
setsebool -P httpd_can_network_connect on
This will set the httpd_can_network_connect
boolean to on
and make the change persistent across reboots.
Options
The following table lists all the available options for the setsebool
command:
Option | Description |
---|---|
-P |
Makes the changes persistent across reboots. |
-n |
Sets the boolean to on without making the change persistent. |
-N |
Sets the boolean to off without making the change persistent. |
-F |
Reloads the SELinux policy after making changes. |
-h |
Displays the help message for the command. |
Troubleshooting Tips
- If you are having trouble modifying a boolean value, ensure that you are running the command as root or with sudo privileges.
- If the changes are not being applied, try reloading the SELinux policy with the
-F
option. - If you are unsure of the name of the boolean you want to modify, you can use the
getsebool
command to list all available booleans.
Notes
- The
setsebool
command can be used to modify the boolean value of any rule in the SElinux policy. - Changes made with the
setsebool
command only affect the current running system. To make changes persistent across reboots, use the-P
option. - Boolean values can also be set using the
semanage boolean
command, which provides a more user-friendly interface for managing booleans.