Linux Security Hardening and Access Control Questions

Covers security hardening and host level access control practices on Linux systems. Topics include enforcing least privilege, mandatory access control frameworks such as Security Enhanced Linux or AppArmor, secure shell configuration and key management, host firewall configuration and policy, audit logging and integrity verification, patch and configuration management, integration with centralized identity and access management solutions, and compliance considerations. Interviewers assess the ability to design and implement secure, auditable, and maintainable configurations at scale.