RHEL Linux Red Hat System Administration Practice Exam 2025 – Complete Test Prep

To set SELinux to permissive mode, the correct method is to use the command `setenforce 0`. This command temporarily changes the mode of SELinux from enforcing to permissive. In permissive mode, SELinux does not enforce the access policy; instead, it allows all actions but logs any that would have been denied in enforcing mode. This is particularly useful for troubleshooting SELinux policies.

Using `setenforce 0` simply requires administrative privileges and is effective for immediate changes. To revert SELinux back to enforcing mode, one would use `setenforce 1`.

Other methods mentioned, such as modifying the configuration file or using the `semanage` command, are not directly applicable to immediately change the mode to permissive. `semanage permissive` does not exist as a standalone command for this purpose, and `setsebool` is used to manage boolean values for SELinux policies rather than changing the SELinux mode itself. Additionally, `policycoreutils` is a package that provides the necessary tools for managing SELinux but does not perform mode changes directly.