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14 lines
613 B
Plaintext
14 lines
613 B
Plaintext
config NETFILTER_XT_MATCH_PKNOCK
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tristate "Port knocking match support"
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depends on NETFILTER_XTABLES && CONNECTOR
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---help---
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pknock match implements so-called Port Knocking, a stealthy system
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for network authentication: client sends packets to selected, closed
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ports on target machine in a specific sequence. The target machine
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(which has pknock match rule set up) then decides whether to
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unblock or block (again) its protected port with listening
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service. This can be, for instance, used to avoid brute force attacks
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on ssh or ftp services.
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For more informations go to: http://portknocko.berlios.de/
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