Messages in this thread | | | Date | Sat, 01 Oct 2011 14:13:43 -0400 (EDT) | Subject | Re: kernel.org status: hints on how to check your machine for intrusion | From | David Miller <> |
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From: Steven Rostedt <rostedt@goodmis.org> Date: Sat, 1 Oct 2011 14:06:41 -0400
> For my machine that is connected to the outside world, I have a script > that runs every night that checks for attacks. As bots constantly look > for port 22 and 80, they find my machine without issue. When my script > detects a bunch of ssh login attempts that fail, it will add that ip > address to the iptables DROP chain:
By running sshd on a different port, you'll avoid the login attempts as well as the overhead of the successful connection attempts.
I haven't allowed sshd to run on port 22 in more than 10 years.
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