- Lab
-
Libraries: If you want this lab, consider one of these libraries.
- Cloud
- Security

Creating firewalld Rules
In this lab, we will be installing firewalld and creating firewall rules to permit HTTP and HTTPS traffic in the default zone. Then, we'll check to make sure the rules have applied.

Lab Info
Table of Contents
-
Challenge
Install firewalld.
To install firewalld, run the following command: - sudo apt-get install firewalld (Note: If you get a lock message, just wait 1-2 minutes and try again):
-
Challenge
Identify the default zone of firewalld.
Use the following command to identify which zone is the default zone.
sudo firewall-cmd --get-default-zone
-
Challenge
Create firewall rules.
- These rules need to take effect immediately without restarting the firewalld service, as well as survive a reboot. This means we must enter two rules for each protocol: one with the
--permanent
flag, and one without.
Enter:
sudo firewall-cmd --zone=public --add-service=http --permanent sudo firewall-cmd --zone=public --add-service=http sudo firewall-cmd --zone=public --add-service=https --permanent sudo firewall-cmd --zone=public --add-service=https
- Check to make sure
http
andhttps
have been added, run:
sudo firewall-cmd --list-services- You should see
http
andhttps
listed.
- You should see
- These rules need to take effect immediately without restarting the firewalld service, as well as survive a reboot. This means we must enter two rules for each protocol: one with the
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