'blacklisting' an IP-address after several loginfailures?

2004-10-11 Thread Joachim Dagerot
I'm under attack!

I have pages up and down with failed login attempts, usually they are
trying to hack the root account (which simply can't be used to get in
by SSH) but they are also trying to access the system with various
usernames (bruth force).

Is it easy to load a package that simply adds a deny entry for each IP
that has failed to login for X amounts of tries?
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Re: 'blacklisting' an IP-address after several loginfailures?

2004-10-11 Thread Lowell Gilbert
Joachim Dagerot [EMAIL PROTECTED] writes:

 I'm under attack!
 
 I have pages up and down with failed login attempts, usually they are
 trying to hack the root account (which simply can't be used to get in
 by SSH) but they are also trying to access the system with various
 usernames (bruth force).
 
 Is it easy to load a package that simply adds a deny entry for each IP
 that has failed to login for X amounts of tries?

See the MaxStartups option for configuring sshd.

This is somewhat similar to what you were describing, but without the
downside of giving an attacker the ability to lock some victim out of
access to your machine.
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