Failed SSHD Login Attempts (15,000 per day) - Is that a lot compared to your server? Post: 303039264

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Special Forums Cybersecurity Failed SSHD Login Attempts (15,000 per day) - Is that a lot compared to your server? Post 303039264 by stomp on Friday 27th of September 2019 01:02:18 PM

09-27-2019

Registered User

Quote:

fail2ban ... What do you think? Is that an important metric to add, do you think?

It maybe fail2ban is configured properly, up and running. That will definitely explain a rate below average. But f2b can be running without being configured to do blocking at all or not correctly adapted to the system. It may be a weak variable.

What regards the ssh port. From my experience it will make a huge difference if it's running on default port 22 or a custom port. Most attackers are just using the easiest methods because there's still enough to harvest.

Regarding my server list:

I did a quick check and removed the results which might not be plausible(flapm <= 0). There might be a pool of servers not shown because flapm rounded down to zero.

Last edited by stomp; 09-27-2019 at 02:10 PM..

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LEARN ABOUT DEBIAN

fail2ban-server

FAIL2BAN-SERVER(1)						   User Commands						FAIL2BAN-SERVER(1)

NAME

       fail2ban-server - start the server

SYNOPSIS

       fail2ban-server [OPTIONS]

DESCRIPTION

       Fail2Ban v0.8.2 reads log file that contains password failure report and bans the corresponding IP addresses using firewall rules.

       Only use this command for debugging purpose. Start the server with fail2ban-client instead. The default behaviour is to start the server in
       background.

OPTIONS

       -b     start in background

       -f     start in foreground

       -s <FILE>
	      socket path

       -x     force execution of the server (remove socket file)

       -h, --help
	      display this help message

       -V, --version
	      print the version

AUTHOR

       Written by Cyril Jaquier <cyril.jaquier@fail2ban.org>.  Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>.

REPORTING BUGS

       Please report bugs via Debian bug tracking system http://www.debian.org/Bugs/.

COPYRIGHT

       Copyright (C) 2004-2008 Cyril Jaquier
       Copyright of modifications held by their respective authors.  Licensed under the GNU General Public License v2 (GPL).

SEE ALSO

       fail2ban-client(1)

fail2ban-server v0.8.2						    March 2008							FAIL2BAN-SERVER(1)