A system administrator has noticed SELinux is preventing a web application from functioning properly on a production server running the 'targeted' policy. The administrator wants to temporarily relax SELinux enforcement to diagnose the issue without entirely disabling SELinux or making permanent policy changes. Which command should the administrator use to fulfill this requirement?
The setenforce 0 command sets SELinux to 'Permissive' mode. In 'Permissive' mode, SELinux logs actions that would have been denied but does not actually block them. This allows the administrator to diagnose the issue without impacting the application's functionality. setenforce 1 would return SELinux to 'Enforcing' mode. setsebool -P is used to make persistent changes to specific SELinux booleans, not the overall mode. The command setenforce enforcing is a valid command, but it sets the mode to 'Enforcing', which is the opposite of the desired action. The 'Disabled' mode cannot be set with setenforce; it must be configured in the /etc/selinux/config file and requires a system reboot to take effect.
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What is SELinux and why is it used?
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