An old KSH script to block SSH brute force attempts. Originally posted to seclists.org. (https://seclists.org/fulldisclosure/2005/Sep/27) The great-grandaddy of SSH tcpwrapper / iptables, supporting SSH blocking scripts.
I have made a slight alteration to the script to secure it if anyone has the old original in circulation.
It has clearly come to my attention that my work was never credited by other authors which is very disappointing. ...