Thousands of ssh probes

Programmer In Training pit at joseph-a-nagy-jr.us
Fri Mar 5 13:04:25 UTC 2010


On 03/05/10 06:54, John wrote:
> My nightly security logs have thousands upon thousands of ssh probes
> in them.  One day, over 6500.  This is enough that I can actually
> "feel" it in my network performance.  Other than changing ssh to
> a non-standard port - is there a way to deal with these?  Every
> day, they originate from several different IP addresses, so I can't
> just put in a static firewall rule.  Is there a way to get ssh
> to quit responding to a port or a way to generate a dynamic pf
> rule in cases like this?

Can you not deny all ssh attempts and then allow only from certain,
trusted IPs?

-- 
Yours In Christ,

PIT
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