Root User and Elevated Permissions

Question 1

A special user account used for administration on a linux host. Has access o all files and programs and has the ability to change ownership, permissions, and modify user acounts.

Answer 1

Root user/Super user/Admin

Question 2

A file used to determine privileges for a user or group

Answer 2

/etc/sudoers and /etc/sudoers.d

Question 3

The openSSH daemon config file.

Answer 3

/etc/ssh/sshd_config

Question 4

Allows a user to execute a command as the superuser or another user using -u option

Answer 4

sudo
the -i or –loginoption will execute an interactive shell if no command is specifed

Question 4

Used to edit the sudoers file. It provides a lock on the file against multiple simultaneous edits, provides basic santiy checks and checks for parse errors.

Answer 4

visudo

Question 5

Alllows users to run commands with a substitute user and group ID. When run without arguments su defaults to running an interactive shell as the root user

Answer 5

su
-, -l and –login options will start the shell as a login shell with an enviornment similar to a real login shell

Question 6

file to set the permitrootlogin option to no

Answer 6

etc/ssh/ssh_config