Category Archives: Uncategorized

How to block IDM in network? WFilter added support for blocking IDM.

Internet Download Manager (IDM) is a Multi-threaded application that
breaks a file into many small parts and starts to simultaneously
download all of these parts. It can consume a lot of your bandwidth when downloading multiple large files.

With WFilter, you can block IDM downloading completely.

The settings are very simple. You only need to edit your blocking policy, and set “IDM” to “Deny” in “Applications”.

In “Connections”, you will see IDM connections are “terminating”.


IDM will report failure in a few seconds.

A protocol description of IDM can be found at: How to block IDM, IDM port and protocol description. Please note that downloading from https with IDM can also be blocked.

How to use the “punish group” feature in WFilter NG firewall?

This article will introduce the “punish group” feature of WFilter NG firewall. The punish group is a virtual group, which enables you to:

  • 1. Set punish policies to punished clients. For example: disallow entertainment sites, rate limits to 20K.
  • 2. Add an user to the “punish group” for a limited time.
  • 3. Add multiple users to the “punish group” by WFilter extensions.

Set policies to the punish group

You can set policies to the punish group in “Access Policy” and “Bandwidth”.

“Punish group” is a virtual group. You also can define your own virual group for various temp rules.

How to scan proxy servers in local network?

The “Proxy Scanner” plugin in WFilter is a additional function that you can scan proxy servers in local network. And this article will guide you to use the plugin in WFilter.

1. Download “Proxy Scanner” in “System Settings-Plugins”.

2. Scan proxy servers.

2.1 Scan proxy servers by “Local Subnet Computers”.

2.2 Scan proxy servers by “IP Address Range”.

How to limit bandwidth in WFilter 4.1?

In the latest version of WFilter 4.1(216), you can limit bandwidth in pass-through mode. And in this artical I will show you how to config in WFilter 4.1.

1.Select pass-through mode in “System Settings-Monitoring Settings”

2.Install WFilter IMNPTF driver, please refer How to install WFilter IMNPTF driver?

3.Check driver was installed successfully in “System Settings->Check Settings”

4.New a blocking level in “Policy Settings->Blocking Levels”

5.Apply this blocking level to computer in “Policy Settings->User-device List”

6.Check result

How to uninstall WFilter?

This tutorial will demonstrator you the steps to uninstall WFilter.

1. Click the “Uninstall WFilter” shortcut

Click the “Uninstall WFilter” shortcut in windows programs list.

2. Confirm un-installation

3. Un-installation Success.

Wait until end of the un-installation.

How to block “Online Games” in WFilter 4.1?

This article introduce you to block “Online Games” in WFilter 4.1 .

1. New a blocking level in “Policy Settings->Blocking Levels”, enable ‘Block webpages by categories’ and click ‘New’:

2. Edit Webpage Category Policy :

3. Apply this blocking level to computer:

4. Check result(e.g http://www.4399.com):

And you can check blocking record in ‘Current Online-Realtime Blocking’.

How to block “Proxy Tunneling” software in WFilter 4.1?

This article introduce you to block “Proxy Tunneling” software in WFilter 4.1 . Tor is a popular Proxy Tunneling software, and I will guide you to block Tor.

Step 1. New a blocking level in “Policy Settings->Blocking Levels”, click “Edit” in Applications tab:

Step 2. Deny tor protocol and save setting:

Step 3. Apply this blocking level to computer:

Step 4. Open tor then it can’t connect to the server.

Step 5. You can see blocking records in “Current Online->Real-time Blocking”:

How to block snapchat in network?

Snapcaht is a popular chat software, this article will guide you to block snapchat in WFilter 4.1 .

Step 1. New a blocking level in “Policy Settings->Blocking Levels”, click “Edit” in Applications tab:

Step 2. Deny snapchat protocol and save setting:

Step 3. Apply this blocking level to computer:

Step 4. Visit snapchat website and check result:


Step 5. You can see blocking records in “Current Online->Real-time Blocking”:

How to block video by protocols in WFilter 4.1?

WFilter 4.1 has it’s own protocols library, so you can block protocols to block video website and client.

Step 1. New a blocking level in “Policy Settings->Blocking Levels”, then click “Edit” in Applications tab:

Step 2. Deny all protocols in Streaming category:

Step 3. Apply this blocking level to computer:

Step 4. Visit video website and check result(Youtube client also be blocked):

Step 5. You can see blocking records in “Current Online->Real-time Blocking”:

How to block video files with WFilter 4.1?

WFilter can detect type of transfer files, when you block web video, all video files will be blocked by WFilter.

Step 1. New a blocking level in “Policy Settings->Blocking Levels”, and check “Block Web Video” in Web tab:

Step 2. Apply this blocking level to computer:

Step 3. Visit video website and check result:

Step 4. You can see blocking records in “Current Online->Real-time Blocking”: