# Allow Incoming Port Connection

## Windows:

1. Access Firewall Settings:
   * Press Windows + R, type control, and press Enter.
   * Go to System and Security > Windows Defender Firewall.
2. Advanced Settings:
   * On the left panel, click Advanced settings.
3. Create a New Rule:
   * In the new window, select Inbound Rules on the left.
   * Click New Rule... on the right.
4. Select Port:
   * Choose Port and click Next.
5. Specify the Port:
   * Select TCP or UDP, depending on your requirement.
   * Enter the port number you wish to open and click Next.
6. Allow the Connection:
   * Select Allow the connection and click Next.
7. Profile Selection:
   * Choose when the rule applies: Domain, Private, or Public.
   * Click Next.
8. Name the Rule:
   * Give your rule a name and click Finish.

### Video showing how to open ports on Windows

We are not affiliated with this YouTuber. This is a great video showing how to open ports on Windows ***but please stop the video at 9:12 as the whole point of QubitVPN is so you can avoid exposing your home network.***

{% embed url="<https://www.youtube.com/watch?v=cymXDevzthk>" %}
We are not affiliated with this YouTuber. This is a great video showing how to open ports on Windows ***but please stop the video at 9:12 as the whole point of QubitVPN is so you can avoid exposing your home network.***
{% endembed %}

## MacOS:

1. Access System Preferences:
   * Click the Apple menu and choose System Preferences.
2. Security & Privacy:
   * Select Security & Privacy > Firewall tab.
3. Unlock Settings:
   * Click the lock icon and enter your administrator password to make changes.
4. Firewall Options:
   * Click Firewall Options....
5. Add a Port:
   * Click the + button to add an application or service and specify the port number.
6. Save Changes:
   * Click OK and lock the settings by clicking the lock icon again.

## Linux:

### Ubuntu/Debian-based Systems:

1. Use UFW (Uncomplicated Firewall):
   * Open a terminal.
2. Enable UFW:
   * Run sudo ufw enable to ensure UFW is active.
3. Open a Port:
   * Use the command sudo ufw allow \[port number] to open a specific port.
4. Check the Status:
   * Run sudo ufw status to verify that the port is open.

### CentOS/RedHat-based Systems:

1. Use FirewallD:
   * Open a terminal.
2. Open a Port:
   * Run sudo firewall-cmd --zone=public --add-port=\[port number]/tcp --permanent.
3. Reload Firewall:
   * Execute sudo firewall-cmd --reload to apply changes.

Always ensure that you open ports only for trusted applications to maintain security.

### Video showing how to open ports on Linux

We are not affiliated with this YouTuber. This is a great video showing how to open ports on Linux.

{% embed url="<https://www.youtube.com/watch?v=7c_V_3nWWbA>" %}
We are not affiliated with this YouTuber. This is a great video showing how to open ports on Linux.
{% endembed %}