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Safe Use Of X Window System Protocol Across A Firewall

Brian L. Kahn

The MITRE Corporation
202 Burlington Road
Bedford, Massachusetts 01730


This paper describes a method for safe use of the X window system protocol across a firewall. The approach uses an agent in the communications stream to enforce an access control policy. Topics covered include risks, policy, implementation, and a summary of prototype efforts. Results can be applied to other distributed or client/server applications.

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