Delay between failed login attempts? (OpenSSH)
- From: Suk <sukesh@xxxxxxxxxx>
- Date: Tue, 18 Sep 2007 04:12:45 -0700
Hi
Im using OpenSSH on Suse 10.2
I get hackers trying to ssh into my server all the time and /var/log/
messages fills up with various messages like below
Sep 18 01:58:06 linux sshd[28115]: Invalid user guest from
222.83.228.151
Sep 18 01:58:12 linux sshd[28117]: Invalid user guest from
222.83.228.151
Sep 18 01:58:19 linux sshd[28119]: Invalid user guest from
222.83.228.151
Sep 18 01:58:26 linux sshd[28121]: Invalid user guest from
222.83.228.151
Obviously these people are using some kind of brute force password
guessing program to attempt to gain access to my system.
Can I increase the delay between failed login attempts? Say after a
certain number of failed logins the ssh server doesnt accept new
connections for a few seconds?
I want these types of programs to frustratingly long to use for the
hackers trying to gain acess..
Any ideas?
.
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