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FAQ No.:00314 
Category:Curtain LogTrace; Curtain MonGuard 
 
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 2003 and XP, set the port exception as below:
  • 24821 port of TCP
  • 24821 port of UDP
  • 24822 port of TCP
  • 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

For Windows 2003 and XP, set the port exception as below:
  • 24821 port of TCP
  • 24821 port of UDP
  • 24822 port of TCP
  • 24822 port of UDP


Steps to add rules for Windows 2008/2012/2016/2019/2022/2025/Vista/Win 7/Win 8/Win 10/Win 11:
1. Select "My Computer" and right click to select "Manage"
Then, Server Manager will be shown.

2. In Server Manager, select "Inbound Rules" as below picture and right click to select "New Rule..."

e-locker data loss prevention (DLP) - New Rule

3. New Inbound Rule Wizard is shown as below, choose Port and click Next.

e-locker data loss prevention (DLP) - choose Port

4. This rule applies to TCP and enter "24821" in Specific local ports, and click Next.

e-locker data loss prevention (DLP) - in Specific local ports

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

e-locker data loss prevention (DLP) - Allow the connection

6. Check all as shown below (i.e. "Domain", "Private", and "Public") and click Next.

e-locker data loss prevention (DLP) - Check all

7. Enter "curtain" for the name of this rule, and click Finish.

e-locker data loss prevention (DLP) - Enter name

8. A new inbound rule named "curtain" is created successfully.

e-locker data loss prevention (DLP) - new inbound rule named

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

P.S. To create outbound rule, select "Outbound Rules" and right click to select "New Rule..."


Steps to set Port Exception for Windows 2003 and XP:
1. Click "Add Port..." button in Control Panel > Windows Firewall > Exceptions

e-locker data loss prevention (DLP) - Exceptions

2. Enter 24821 and select TCP. Then, enter a name for this exception and click OK.

e-locker data loss prevention (DLP) - enter a name

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