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FAQ No.:00314 
Category:Curtain LogTrace; Curtain MonGuard; Curtain PrintTrail 

 
Question:

How to open port 24821 and 24822 in Windows Firewall for Curtain Lite Admin?

 
 
Answer:If Windows Firewall is enabled, please open port 24821 for Curtain Lite Admin and Curtain Lite Client.

For Windows 2008/2012/2016/2019/2022/2025/Vista/Win 7/Win 8/Win 10/Win 11, please add the rules for Curtain Lite Admin as below:
  • inbound rule of 24821 port of TCP
  • inbound rule of 24821 port of UDP
  • outbound rule of 24822 port of TCP
  • outbound rule of 24822 port of UDP

For Windows 2008/2012/2016/2019/2022/2025/Vista/Win 7/Win 8/Win 10/Win 11, please add the rules for Curtain Lite Client as below:
  • outbound rules of 24821 port of TCP
  • outbound rules of 24821 port of UDP
  • inbound rules of 24822 port of TCP
  • inbound rules of 24822 port of UDP

Example of setting up inbound TCP rules for port 8443:

1. Open "Windows Administrative Tools > Windows Defender Firewall with Advanced Security".

2. Select "Inbound Rules", right-click and select "New Rule".



3. The "New Inbound Rule Wizard" will pop up, as shown in the image below. Select "Port" and click "Next".



4. Enter "24821" in "Specific local port" and click "Next".



5. Select "Allow the connection" and click "Next".



6. As shown in the figure, "Domain", "Private", and "Public" are selected by default. Click "Next".



7. Enter "Curtain" in the name field and click "Finish".



8. Check the list of inbound rules. A new item, "Curtain" will appear in the list, as shown in the image below. The operation of adding an exception port was successful.




Please according to the above steps, to add more exceptions for:
  • 24821 port of UDP
  • 24822 port of TCP
  • 24822 port of UDP
  • 24821 port of TCP (Curtain Lite Client)
  • 24821 port of UDP (Curtain Lite Client)
  • 24822 port of TCP (Curtain Lite Client)
  • 24822 port of UDP (Curtain Lite Client)

For related questions, please refer to FAQ 00118 - How to open port 24821 , 24822 and 8443 in Windows Firewall for Curtain Admin and Curtain Server Plug-in