This is result of last week discussion about port knockers. Its my second bash script (first is my firewall), so any feedback will be appreshiated ;)
usage: ./knocker.sh <config file name> del Path to config file is constant in knocker.sh. del - is optional, simply deletes target chain script has no limits on knock sequences, and demands statefull filtering enabled ipt -i $IF_INET -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
knocker.sh
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test
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