port knocking

  1. howardsl2

    IPTables GeoIP, Port Scan Detection and Port Knocking using xtables-addons

    A quick tutorial on how to enable extra IPTables functionality such as geoip, port scan detection, port knocking and "tarpit" using the "xtables-addons" package. Full list of available modules can be found here. Note 1: Does NOT work on OpenVZ VPS (unless the host node provides the modules).  ...