Which command is used to change the security context assigned to a file?

The command used to change the security context assigned to a file is "chcon." This command allows users to directly set the SELinux security context of a file or directory. The SELinux security context is important because it defines how the operating system and applications access files based on security policies.

When using "chcon," you can specify the new security context, including user, role, type, and level, which influences the permissions and access rights of the file. This is particularly useful in scenarios where specific files need to have different access controls different from what the default settings provide.

In contrast, "restorecon" is used to restore the SELinux context of a file to its default context based on the current policy, while "setsebool" modifies Boolean settings that control various SELinux behaviors rather than changing contexts directly. The command "aa-complain" is associated with AppArmor and is not relevant to SELinux or file context management.