sshd break-in attempt

Peter N. M. Hansteen peter at
Fri Jan 5 01:09:39 PST 2007

Nathan Vidican <nvidican at> writes:

>  of attempts). Anyhow, long story short; is there not an easy way to
> make sshd block or deny hosts temporarily if X number of invalid
> login attempts are made within a minute's time? 

if you use pf, it's fairly straightforward with an overload rule, see eg

Peter N. M. Hansteen, member of the first RFC 1149 implementation team
"First, we kill all the spammers" The Usenet Bard, "Twice-forwarded tales"
Dec 22 02:13:59 delilah spamd[29949]: disconnected after 42673 seconds.

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