script bash : https://github.com/mnazaragliyono/KKMPdasar bash : http://pemula.linux.or.id/programming/bash-shell.htmlbactrack : http://www.mbahgarong.web.id/2015/01/meningkatkan-keamanan-remote-server.htmlhttp://www.gtwang.org/2013/10/port-knocking.htmlhttp://translate.google.co.id/translate?hl=id&sl=en&u=http://www.linux.com/learn/tutorials/351079-weekend-project-secure-your-system-with-port-knocking&prev=searchhttp://mum.mikrotik.com/presentations/US10/discher.pdfhttps://iks32753.wordpress.com/2012/04/03/pemrograman-bash-shell-2/=====================================================================script pak nori : https://code.google.com/p/sshwatch/w/list : http://pytbull.sourceforge.net/index.php?page=documentation=====================================================================http://www.mbahgarong.web.id/2015/01/meningkatkan-keamanan-remote-server.htmlhttp://www.cyberciti.biz/faq/debian-ubuntu-linux-iptables-knockd-port-knocking-tutorial/https://www.google.co.id/search?q=konfigurasi%20port%20knocking%20pada%20debian%20atau%20ubuntu&gws_rd=sslhttp://www.edusoftcenter.com/debian-ubuntu-setting-port-knocking-dengan-knockd-dan-iptables.html