Locking yourself out of the machine lies that way. Strongly, strongly advise against. But, yes. There's an iptables module called ipt_recent[1] that will do wh

Locking yourself out of the machine lies that way. Strongly, strongly advise against. But, yes. There's an iptables module called ipt_recent[1] that will do what you're after. It's been built-in for ages and you don't need to install it. You can't use it by itself, though. You will have to design a full iptables ruleset. [1]: http://snowman.net/projects/ipt_recent/ http://snowman.net/projects/ipt_recent/