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Filter Pornography: Drishti Systems
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Drishti's NetOptima blocks the pages that contain pornographic material, whether it is in websites, emails, documents, blogs or other community websites.
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Friday, June 08, 2007:
With a mission to curb the misuse and protect the future generation from the cyber onslaught, Hyderabad-based IT research company Drishti Systems Pvt Ltd has launched NetOptima N101, a statistical pornography filter. NetOptima N101 is a simple plug-n-play hardware device for your network that blocks all the pornographic content whether it is in websites, e-mails, documents, blogs or other community websites such as Google groups, Yahoo groups, etc. The launch of Drishti Broadband, a porn-filtered broadband service, was also announced by the company.
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Commenting on the new hardware, Anil K. Chandra, head, R&D, Drishti Systems Pvt Ltd, said, "NetOptima N101 provides an effective way for IT and security managers to deter the abuse of internet privileges. The product is increasingly essential to businesses, educational institutions, government agencies and other connected organisations."
NetOptima N101 is a hardware platform unlike the parental control software generally available in the market. Based on pattern-based filtering method, NetOptima N101 analyses the web page while it is being loaded for pre-defined patterns and blocks pornographic content. NetOptima uses patented (pending) algorithms to statistically identify the document based on various characteristics of the page, in addition to keyword distribution, frequency and multi-word patterns.
NetOptima analyses the data packets at network level and reads the data page by page. Hence, it will block only the pages that contain pornographic material and not the entire website. It also blocks P2P (peer-to-peer) traffic, services such as eDonkey, eMule, KaZaA, FastTrack, Gnutella, Direct Connect, BitTorrent, Extended BT, SoulSeek, etc.
With searching and profiling algorithms, NetOptima N101 filters pornographic content on resource crunched embedded system. Ported on MIPS32 266 MHz with 32 MB memory, N101 can filter peak of 4 mbps and average of 2 mbps bandwidth. It can even be ported on bigger machines to achieve traffic up to 100 mbps too. N101 boosts of a very high hit ratio (more than 99 per cent) and almost zero false negatives.
Targeted at educational institutes (schools, colleges, universities, training institutes), corporate and government organisations and ISPs, NetOptima N101 is priced at Rs 65,000 per device. One device can optimally support about 500 computers surfing the Net.
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