What this amounts to is a highly layered security strategy consisting of vital elements that include intrusion prevention, botnet and application control, Web filtering, antispam, and antivirus.

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With a majority of retailers today using social media to offer promotions or coupons, a solid Application Control and URL Filtering solution can help mitigate the risks employees may encounter with millions of websites and Web 2.0 applications accessible to users.

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The truly paranoid may elect to use the 2.4 kernels' Netfilter4 facility (adding stateful packet filtering) or a commercial application-level proxy gateway.

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