config BR2_PACKAGE_KNOCK
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bool "knock"
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depends on BR2_USE_MMU # fork()
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select BR2_PACKAGE_LIBPCAP
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help
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A port knocking implementation.
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Provides a daemon and a user application. Port knocking can be
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used to run an arbitrary application, once the daemon detects
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a predefined sequence of incoming TCP/UDP packets on a network
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interface. This can be used, e.g. to open up ports in a
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firewall.
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http://www.zeroflux.org/projects/knock
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