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