UserID 65535

TL;DR

• UserID 65535 is an unprivileged user in containerized environments.

Services Running with UserID 65535

Running services with UserID 65535 (non-root) is a security measure to reduce the potential impact of a compromised service.

Impact

1. Reduced privileges: The service runs with limited permissions, similar to a regular user account [5].
2. Improved security: Prevents the service from accessing or modifying system-critical files and settings.
3. Isolation: Helps contain potential security breaches by limiting the service's access to other parts of the system.
4. Compatibility considerations: Some applications may assume root privileges and need to be adapted to work with a non-root user ID.

Best Practices

• Ensure the service has the necessary permissions to perform its required tasks without excess privileges.
• Use additional security measures like SELinux or AppArmor for further access control.

What next?

Consider reading up on:

• Ports exposed