Protect SSH on Fedora Core from Dictionary Attacks with DenyHosts

What are the odds that someone will try to attack your SSH service? Pretty good. One way to help thwart those attempts is to use DenyHosts. It monitors the SSH log, and when it finds that someone has tried, unsuccessfully, to log in, it adds their IP address to hosts.deny - preventing any further access to your machine for a period of time - which can be indefinite if you so choose.

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