Posted Mar 6, 2007 8:41 UTC (Tue) by niner
In reply to: agree
Parent article: Single Packet Authorization (Linux Journal)
Port knocking has just one advantage over plain ssh: it keeps your logs free of thousands of failed login attempts due to brute force ssh guessing by automated scripts.
It's not security, just a little more convenience.
It's the same as with simple text-based CAPTCHAs like addition of two numbers. They are very easily broken and scripted even by the youngest script kiddie. But this assumes, that there is a human individual interested in your site. And in most cases there just isn't.
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