IMFirewall Blog - Block Internet Access,Block P2P,Web Filtering

How to set a redirect denial page in WFilter?

Sometimes you might want to redirect blocked websites to a new URL. To do this, you need to edit WFilter denial page in source mode. This tutorial will guide you to configure a redirect denial page in WFilter. First, edit a blocking level Edit a blocking level and new a denial page. Please don't forget to list your new URL in the exception list. Second, edit the denial page in source mode. A javascript code is required: window.location="http://www.yourwebsite.com/..."; Third, unch

When shall you use two network cards for monitoring and blocking?

In "pass-by" filtering mode(WFilter works on a mirroring port), WFilter sends RST packets to block TCP connections. However, if outgoing traffic is limited on the blocking adapter, blocking feature of WFilter might not be working. The default settings of WFilter use a same adapter for monitoring and blocking. However, it will not work if a following condition is met. The monitoring switch does not allow outgoing traffic on the mirroring port. You can check this by "ping" other computers in

How to use the WFilter block the VNC?

In computing, Virtual Network Computing (VNC) is a graphical desktop sharing system that uses the RFB protocol to remotely control another computer. It transmits the keyboard and mouse events from one computer to another, relaying the graphical screen updates back in the other direction, over a network. VNC is platform-independent – a VNC viewer on one operating system may connect to a VNC server on the same or any other operating system. There are clients and servers for many GUI-based opera