Understanding Basic Firewalld Management

Question 1

Provides a dynamically managed firewall that supports groups of rules called zones

Answer 1

Firewalld

Question 2

The command-line client for firewalld

Answer 2

firewall-cmd

Question 3

OpenSSH SSH daemon configuration file

Answer 3

sshd_config

Question 4

This keyword can be followed by a list of username patterns, separated by spaces. If specified, login is allowed only for usernames that match one of the patterns

Answer 4

AllowUsers

Question 5

This keyword can be followed by a list of group name patterns separated by spaces. If specified login is allowed only for users whose primary group of supplementary group list matches one of the patterns

Answer 5

AllowGroups

Question 6

predefined zones for firewalld

Answer 6

drop, block, public, externsal, internal, dmz, work, jome, trusted