LPIC3 303 Security Complete Practice Test 2026

The command used to run a new shell for a user in a new context under SELinux is "newrole." This command is specifically designed for situations where users need to execute commands or start sessions with a different SELinux role than their current one. In the SELinux framework, roles define what actions a user can perform, and the "newrole" command facilitates the transition from one role to another while maintaining the security policies enforced by SELinux.

When a user executes "newrole," they may be prompted to enter their password to confirm their identity and permission to switch roles. This feature is essential in scenarios where users are granted different access levels depending on their roles, ensuring minimal privilege required is maintained for security purposes.

Other commands, while they have their uses, do not focus specifically on changing the SELinux context. For instance, "su" is primarily used to switch users and can change the user ID but does not inherently manage SELinux roles. Similarly, "runuser" allows executing commands as another user but operates outside the SELinux role management context. "setenforce" is strictly related to changing the SELinux mode (between enforcing and permissive) and does not pertain to user role management directly. Thus, "newrole