Users, Groups & Permissions

Creating and modifying user accounts, groups, password aging, and file permissions (including SUID/SGID/sticky and POSIX.1e ACLs). Roughly 15% of the EX200 exam.

User & group management

New

Create users with specific UIDs, primary and supplementary groups, modify account attributes, lock/unlock, and manage password aging with chage.

~35 min~50% of domainuseraddusermoduserdelgroupadd

Permissions, special bits & ACLs

New

Standard rwx permissions, chown/chgrp, SUID/SGID/sticky bits for collaborative directories, and POSIX.1e ACLs with setfacl.

~40 min~50% of domainchmodchownchgrpsetfacl