Script to autoblock break attempts via SSH with UFW

autoblock

#!/bin/sh
USER=johndoe
echo "[Running: $(date)]" >> /var/log/autoblock.log
grep -a -E -e 'Failed password for' /var/log/auth.log | awk '$9 != "$USER" && $9 != "invalid" {print "ufw deny from "$11}' | sh | grep -vi "skipping" >> /var/log/autoblock.log
grep -a -E -e 'Failed password for invalid' /var/log/auth.log | awk '$11 != "$USER" {print "ufw deny from "$13}' | sh | grep -vi "skipping"  >> /var/log/autoblock.log