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User Account Management (useradd,
groupadd, usermod, userdel, groupdel)
Enable Password Aging
Switch Users and Sudo Access (su,
sudo)
Monitor Users (who, last, w, id)
Talking to Users (users, wall, write)
Linux Directory Service - Account
Authentication
Difference between Active Directory,
LDAP, IDM, WinBIND, OpenLDAP etc.
System Utility Commands (date,
uptime, hostname, uname, which, cal, bc)
Processes and Jobs (systemctl, ps, kill,
top, crontab, at)
Additional cronjobs (hourly, daily,
weekly, monthly)
Process Management (bg, fg, nice)