How it works for you:
No software installation required by you.
Webshield Content Filtering Technology
The three main components to the Webshield content filtering technology are:
1) The URL Content Filter
2) Layer 7 packet filter
3) The port filter
The URL Content Filter
When deciding on a content filter there were a number of options available.
The three key decision criteria were:
- Categorisation accuracy – categories needed to be accurate in their classification and updated at least daily to match the dynamic nature of the internet
- Performance – the filtering device need to be capable of making a block or pass decision without adding noticeable delay to the customer surfing experience.
- Scalability – the product needed to be capable of starting small and growing as the business grew.
The content filtering device selected fitted the above criteria. The company specializes in filtering Internet sites at a URL and IP Address level and boasts the largest most accurately categorized data base of sites in the world. In addition the device employs pass-by technology and so does not impact network performance. Finally, the device was capable of scaling for large implementations.Features include:
- Over 100 Different Categories (and growing)
- Black list and white list filtering
- Block peer to peer, bit torrent and chat
- Search word and key word filtering
- Lock in Google / yahoo family filter
- ‘X’ strikes filtering
- Timed filter profile
- Configurable block page
Layer 7 packet filter
The layer 7 packet filter interrogates the data stream as it passes through the network. Its role is to identify and classify traffic allowing for more granular pass or block decision making that a content filter by itself is not capable of recognizing.
In addition to providing protection for Internet protocols, this technology has the capability to closely manage internet resource usage saving up to 30% on bandwidth costs.Features include:
- Protocol Filtering
- Bandwidth optimization
- Bandwidth analysis
- Bandwidth prioritization
The port filterThe third element in the filtering solution is Webshield’s own custom designed port filtering technology designed to act in the as an intelligent firewall.
Traffic passing through various firewall ports is interrogated by the port filter, opening and closing ports as required ensuring an even higher level of filtering protection.
The port filter monitors traffic via these ports and can block or pass any combination of ports on a per user basis. This added level of protection:
- Prevents bypassing filtering through proxy port.
- Prevents common P2P transmission ports.
- Can be used as an additional block for chat protocols.
Filtering CapabilitiesWith a combination of off the shelf (OTS) products with added Webshield designed protection, the total Webshield solution provides the most effective, flexible and scalable ISP level filtering solution available. These various products are best of breed for their role and it is the specialist integration capabilities brought to these products by Webshield’s technical team that has created a total customer solution.
What the customer receives is a family friendly internet experience without the need to manage software at the PC level.
Customer benefits include:
- Ability to choose what they want the internet to be
- Flexible configuration of filtering profile via email or phone
- Ability to set profiles based on timed profiles
- Ultimate control of what is available and when
- No noticeable degradation of network performance
- Peace of mind