What command is used to view and modify user access control in SELinux?

The command used to view and modify user access control in SELinux is semanage. This tool is part of the SELinux management utilities and is specifically designed to manage various SELinux policy components, including user mappings and policies. With semanage, users can modify SELinux user mappings, allowing administrators to define how Linux users correspond to SELinux users and what permissions they have under SELinux.

While setsebool is used to enable or disable SELinux boolean settings that determine certain permission behaviors, it does not deal directly with user access control in the way semanage does. Sepolicy and seinfo provide information on SELinux policies and system information respectively, without the capability to modify user access control settings directly.