Automatically checks the ip address used to scan the ssh port, and disables the command for 100 scans.

Automatically Check the ip address used to scan the ssh port, and automatically disable command 01 for 100 scans #! /Bin/bash02 # sshd, failed03cd/var/bak www.2cto.com 04cat/var/log/secure | grep Failed | awk '{print $13}' | sort | uniq-c> loginfailed.txt 05cat/var/log/secure | grep Failed | awk '{print $11}' | sort | uniq-c> loginfailed.txt 06sed-I '/[a-z]/d' loginfailed.txt 07sed-I '/ [A-Z]/d 'loginfailed.txt 08cat loginfailed.txt | awk' {if (length ($2)> 7) print} '| sort-n> abc.txt 09 Email-s "198, sshd failed" 41187 6027@qq.com <abc.txt 10cat abc.txt | awk '{if (length ($1)> 2) print} '| awk' {print $2} '> bb.txt 11 # cat abc.txt | awk' {if ($1 ~ /5 | 6 | 7 | 8 | 9/) print} '| awk' {print $2} '> bb.txt 12cat bb.txt | xargs-I {} echo "sshd: {} ">/etc/hosts. deny13rm abc.txt 14rm bb.txt 15rm loginfailed.txt 16cp/var/log/secure/var/logbak/secure 'date + % F-% t' 17>/var/log/secure www.2cto.com