Blog Home  Home Feed your aggregator (RSS 2.0)  
IMFirewall Blog
WFilter -- monitor, filter and block internet activities of network client devices.
# Monday, June 27, 2016

A new extension of WFilter, multiping, is recently released.

This extension can ping multiple hosts at a time, with a graph statistics. With this extension, you can monitor the network performance of your servers, even for a whole day.

Settings and screenshots of WFilter multiping extension

Define hosts to be monitored.

Diagram of history ping performance.

This extension can be installed in "WFilter Enterprise", "WFilter Free" and "WFilterROS".

Homepage: WFilter multiping extension

Document: Graph ping performance of multiple hosts

Monday, June 27, 2016 10:47:58 AM (GMT Daylight Time, UTC+01:00)    Internet Monitoring  |   | 
# Thursday, May 26, 2016
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.

Thursday, May 26, 2016 8:44:08 AM (GMT Daylight Time, UTC+01:00)     |   | 
Since chrome implemented QUIZ to server web requests, it has been a dark period for IT administrators because normal web filter won't work to filter google/youtube sites. You may check more details at Why is Google’s QUIC Leaving Network Operators in the Dark?   A protocol description of QUIZ can be found at:

Our team has worked out solutions to block QUIZ, so you can get web filter back to working.

For WFilter Enterprise and WFilter Free, you simply need to block UDP port 443 in your router/firewall. Steps to block udp ports can be found at here:

For WFilterROS, please check this post: Do not forget to block QUIZ to block youtube and other google sites.

Thursday, May 26, 2016 8:27:19 AM (GMT Daylight Time, UTC+01:00)    How to block websites  |   | 
# Monday, March 14, 2016

Now days, people can not image life without facebook, however, streaming videos in facebook can consume a lot of your bandwidth. Sometimes, you may want to block facebook videos without blocking the entire facebook websites.

WFilter can divide facebook video traffic from other traffic. We defined a new protocol named facebook videos.

This facebook videos protocol can block tls sites, which are hosting facebook streaming.

Steps to setup the blocking policy

1. Edit your blocking policy and click "edit" in "Applications".

2. Search facebook and set to "status" to "deny".

Monday, March 14, 2016 9:53:27 AM (GMT Standard Time, UTC+00:00)    How to block internet | Block Streaming  |   | 
# Friday, January 29, 2016

This article will introduce the "punish group" feature of WFilter ROS. 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 ROS 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.

Friday, January 29, 2016 7:56:17 AM (GMT Standard Time, UTC+00:00)     |   | 

You will come to the following solutions when your internet bandwidth is insufficient:

Actullay, these three solutions have disadvantages:

  • 1. Without access control, using multiple broadband connections can not bring better experience. It because downloading and streaming can easily consume most of your bandwidth.
  • 2. "Application blocking" can save your bandwidth. However, users experience are impacted. Users will complain about no streaming or downloading.
  • 3. Rate limiting does not optimize your bandwidth. Users will still complain about slow internet speed.

WFilter ROS brings total solutions for bandwidth optimization.

1. Powerful access control policy

With "Access Policy" modules, you can block p2p downloading, online streaming, streaming websites. Please check: Access Policy

2. Multi-WAN load balancing and routing

In case you have multiple broadband connections, WFilter ROS's "Multi-WAN" module can help you to:

  • 1. Load balancing on multiple broadband connections.
  • 2. Setup routing policies. For example, a). business servers are routed to a dedicated connection, b). video sites are routed to another connection.

For more details, please check: Muti-WAN

3. Bandwidth priority

With the "Priority" module, traffic with higher priority goes first. For example, you can set business servers traffic to the highest priority. So even the network is extremly busy, servers bandwidth won't be influenced.

When installed, there are default rules: email > web > p2p and streaming. You also can customize your own rules.

For more details, please check: bandwidth priority

4. Bandwidth shaper

This module is for you to set bandwidth rate for clients. You can set the rate to ip ranges, user group or department.

Each group have a "maximum bandwidth rate" and "minimum bandwidth rate". The minimum rate ensures the clients to have this bandwidth rate even the line is busy.

For more details, please check: bandwidth shaper

Try WFilter ROS now: WFilter ROS

Friday, January 29, 2016 6:17:32 AM (GMT Standard Time, UTC+00:00)    Content Filter | bandwidth  |   | 
Copyright © 2016 IMFirewall Software. All rights reserved.

Pick a theme: