Can htop Show SELinux Context of a Process on Ubuntu

This article explains whether the htop process viewer can display SELinux security contexts on Ubuntu systems. The direct answer is no, because htop does not include a column for security labels. Users seeking this information should use specific command-line alternatives and be aware of Ubuntu’s default security framework.

Standard versions of htop available in the Ubuntu repositories focus on system performance metrics. You will find columns for CPU, memory, user, and state, but there is no option to enable SELinux context visibility. The tool reads from standard process information files that do not inherently map security contexts to its display interface.

To view security contexts effectively, use the ps command with the appropriate flags. Running ps -eZ will list all processes with their SELinux contexts in the terminal. For a specific process, use ps -Z -p [PID]. This method provides the accurate security data that htop cannot display.

Additionally, remember that Ubuntu uses AppArmor by default rather than SELinux. Unless you have explicitly disabled AppArmor and enabled SELinux, your system will not generate SELinux contexts. For standard Ubuntu security profiling, the aa-status command is the appropriate tool to check active mandatory access control profiles.