Importance

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Abstract

Methods and systems for content filtering of remote file-system access protocols are provided. According to one embodiment, a transparent proxy running within a network gateway logically interposed between a client and a server intercepts remote file-system access protocol requests/responses. Responsive to receipt of a remote file-system access protocol request from the client, the network gateway issues the remote file-system access protocol request to the server on behalf of the client. The network gateway buffers into a holding buffer associated with the network gateway data being read from or written to a file associated with a share of the server. Then, responsive to a predetermined event in relation to the remote file-system access protocol or the holding buffer, the network gateway determines the existence or non-existence of malicious, dangerous or unauthorized content contained within the holding buffer by performing content filtering on the holding buffer.

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First Claim