How to Linux re apply or restore SELinux security labels context

To restore or reapply SELinux security labels (also known as contexts) on a Linux system, follow these steps:

1. Make sure that SELinux is enabled on your system. You can check the status of SELinux by running the following command:

sestatus

If SELinux is enabled, you should see a message indicating that it is "enabled." If it is disabled, you will need to enable it before you can restore the security labels.

2. To restore the security labels for all files on the system, run the following command:

sudo restorecon -Rv /

This will restore the security labels for all files and directories under the root directory (/).

3. To restore the security labels for a specific file or directory, run the following command:

sudo restorecon <path>

Replace <path> with the path to the file or directory for which you want to restore the security labels. For example:

sudo restorecon /etc/ssh/sshd_config

This will restore the security labels for the /etc/ssh/sshd_config file.

4. To restore the security labels for a specific file type, run the following command:

sudo restorecon -F <type> <path>

Replace <type> with the file type and <path> with the path to the directory containing the files. For example:

sudo restorecon -F config /etc

This will restore the security labels for all configuration files (config type) under the /etc directory.

That's it! The security labels for the specified files and directories have been restored on your Linux system. Note that this process may take some time, depending on the number of files and directories being processed.