Ubuntu
日誌文件爲/var/log/auth.log
嘗試IP和嘗試的用戶名
cat /var/log/auth.log | grep 'Invalid' | awk '{print $10 "\t" $8}' | sort
用戶名次數統計
cat /var/log/auth.log | grep 'Invalid' | awk '{print $8}' | sort | uniq -c | sort -bn
預覽
104 ftpuser
112 oracle
147 ubuntu
154 postgres
200 user
318 test
566 admin
CentOS
日誌文件爲/var/log/secure