Although Linux is not mentioned in the exam syllabus, the Security+ exam is vendor neutral and the following commands may help you determine what is being asked:
- Admin accounts: Root top level
- sudo: Admin
- su: Lower admin
- Kill : Stops applications
- Ls : List
- Grep : Search
- Pwd : Parent Working Directory
- Chmod : Changes permissions
- Mkdir: Make directory
- SetFACL : Used to set permissions on a given file
- Ifconfig: Equivalent of ipconfig
- IpTables: Firewall rules
- Chroot: Change root directory
- Root directories: /bin, /boot, /dev, /etc, /home, /mnt, /sbin, and /usr
