Vsftp log can track FTP logged-in user’s detailed operation in Linux, including recording log-in time, uploading or downloading time, log-in IP, the downloaded or uploaded file size etc. All these log records will be stored in MySQL persistently. There are powerful search functions (You can find information you are going to get by checking date, IP or user name item), which provide a auditing management platform with large monitor scope, timely response and powerful analysis ability. Apache log records various events happened every day, by which administrator can the cause of error, or trace attackers. The operation records that users leave when they access database are managed by MySQL log records, by which administrator can find if there is malicious tampering or deleting act, so that it can ensure the system’s safety.[5]