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In this lecture, I am going to be showing you how to create Firewall Rules with Group Policy.
Now, you don’t have a need to just open firewall ports on your domain so in this lecture, we are just going to be opening the ports 1234 and we are going to deploy to the domain, we are going to test it in our computers, and we are going to see how it works and how you can do it inside of your domain.
Always remember to open just the ports you need.
Steps:
- In IPDC01 open Server Manager > Tools > Group Policy Management.
- Create a New GPO, Under the specified OU Domain Computers. Name it Firewall - Test 1234.

- Now we go into our GPO and Edit it by right-clicking on it.
NOTE: Firewall Settings is a Computer Configuration. When you create the GPO you need to link it to OUs that contain computer accounts.
- Head over to Computer Configuration (Firewall settings are based on PC OU).
- Policies > Windows Settings > Security Settings > Windows Firewall with Advanced Security.

- Click into Windows Firewall. Now we can set Inbound/Outbound and Connection Security Rules. The rules are the same configuration for Inbound and Outbound.
- We can also adjust top-level firewall rules:

- Go to Inbound Rules > Right Click > New Rule
- Choose Port > Next > Select UDP/TCP and Type in the required port:

- Under Action > Allow > Under Profile > Select profiles > Next > Name the rule Test 1234:

- Now the setting is good.
- Let's check on our Computer, remember to run gpupdate /force, let's confirm that settings are good to go, we open RSOP.MSC on a member server, you may want to look for it as we did when creating the GPO, but you will notice it is not there.

- The firewall will be under Administrative Templates > Extra Registry Settings. See your GPO rules here:

That is how you apply a Firewall Policy to your domain computers with a Group Policy Object.
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CURRICULUM
Course Introduction • 1min
0 / 1 lessons complete
Introduction to Group Policy Management • 1hr 24min
0 / 6 lessons complete
What is Group Policy
Video | 6 min
Creating and Managing GPOs
Video | 18 min
Group Policy Precedences
Video | 9 min
Editing Group Policy Object Settings
Video | 7 min
Introduction to Group Policy Quiz
Quiz | 14 Questions
Lab: Group Policy Management
Lab | 30 min
Manage Your Workstations • 1hr 46min
0 / 7 lessons complete
Deploying a Desktop Background to your domain with GPO (Group Policy Object)
Video | 12 min
Setting up a Logon Banner (Interactive Logon)
Video | 5 min
Deploying Software with Group Policy
Video | 11 min
Configuring Roaming Profiles for User Accounts
Video | 10 min
Configure User Roaming Profile Path with PowerShell
Video | 7 min
Creating and Mounting File Shares with Group Policy
Video | 16 min
Lab: Manage Your Workstations with Group Policy
Lab | 45 min
Securing Your Domain • 54min
0 / 5 lessons complete
Configuring Domain Password and Account Lockout Policies with Group Policy
Video | 0 min
Deploying Fine Grained Password Policies (PSOs)
Video | 11 min
Configuring Windows Firewall with Group Policy
Video | 6 min
Configuring Registry Settings with Group Policy
Video | 6 min
Lab: Securing Your Domain with Group Policy
Lab | 30 min
Group Policy Troubleshooting • 53min
0 / 5 lessons complete
Troubleshooting Group Policy with MMC (RSOP.msc - Resultant Set of Policy)
Video | 4 min
Troubleshooting Group Policy with Command Prompt (GPResult /r)
Video | 5 min
Creating Non-Inheriting Organizational Units for GPO Testing / Troubleshooting
Video | 9 min
Group Policy Troubleshooting Quiz
Quiz | 5 Questions
Lab: Group Policy Troubleshooting
Lab | 30 min
Course Conclusion • 1min
0 / 1 lessons complete