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FAQ No.:00140 
Category:Curtain Client; Installation 

 
Question:How to open port 24821 and 24822 in Windows Firewall for Curtain Client?
 
Answer:If Windows Firewall is enabled, please open port 24821 and 24822 for Curtain Client.

For Windows 2008/2012/2016/Vista/Win 7/Win 8/Win 10/Win 11, please add the rules as below:
  • inbound rules of 24822 port of TCP
  • outbound rules of 24821 port of TCP

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


Steps to add rules for Windows 2008/2012/2016/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..."



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



4. This rule applies to TCP and enter "24822" in Specific local ports, and click Next.



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



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



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



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



Please according to the above steps, to add more rule for:
  • outbound rules of 24821 port of TCP

P.S.
- To create outbound rule, select "Outbound Rules" and right click to select "New Rule..."
- Please be careful. The inbound rule is port 24822 for Curtain Client, while the inbound rule is port 24821 for Curtain Admin/Server Plug-in. It is easy to mix them up.


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



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



Please according to the above steps, to add more exception for:
  • 24822 port of TCP