More SSH Brute Force Protection

From http://sourceforge.net/projects/denyhosts/files/denyhosts/, the last release of DenyHosts seems to be from 2008. The article says it's actively developed, though.

Debian says:

[Date: Mon, 20 Jan 2014 23:47:41 +0000] [ftpmaster: Ansgar Burchardt]

Removed the following packages from unstable:

denyhosts | 2.6-10.1 | source, all

Closed bugs: 732712

------------------- Reason -------------------

RoST; dead upstream; unmaintained; dysfunctional in sid

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Also closing bug(s): 395565 436417 497485 514024 529089 546772 567209 609032 611756 622697 643031 690524 720130 721502 729322 731963 734329

Also closing WNPP bug(s):

I'm amazed that the easiest way to make brute force attacks useless isn't hardly ever mention. Simply disable password auth in your ssh server entirely and use ssh keys _only_.