Fail2ban

fail2ban watches log files for misbehavior, and creates firewall rules, to stop things like brute force ssh attempts.

It takes a few commands to get going though, and I guess it doesn't run as a normal service?

 🌵 m@bitpost [~]sudo fail2ban-client add mdmjail 
Added jail mdmjail
 🌵 m@bitpost [~] sudo fail2ban-client start mdmjail
Jail started
 🌵 m@bitpost [~] sudo fail2ban-client set mdmjail addlogpath /var/log/messages
Current monitored log file(s):
`- /var/log/messages
 🌵 m@bitpost [~]sudo fail2ban-client status
Status
|- Number of jail:	1
`- Jail list:	mdmjail

Still not working yet...

• Check out port knocking on a non-default port
• check out denyhosts
• turn off passwords entirely!
  • make sure to set up juicessh with the key
  • make sure you have a script you can run from bitpost to temporarily turn it back on to set up new machines, run from phone and then start a cron job to turn it off in x minutes
• deep dive into how to set up a truly painful tarpit for attackers