Three door security for your Linux -Firewall, knockd, fail2ban

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http://www.go2linux.org – Security is always a concern in today world, your house, your car, and your server, I do not know about your house or car, but I can give some advice to implement a real good security system using three doors the intruder will have to pass in order to gain access to your system. In the first place we will use a script I got on the Internet a long time ago, which implements a real good firewall using IPtables, then, we will have knockd to open the firewall when we want to enter and finally we will have fail2ban, in case the intruder discover our knockd combination, this final step wil (HowTos)