PHPmonitor is one of the system monitor tools to check the health of server or service through internet. It support users to detect the server online status through ping, IMAP, service connection init, telnet and open web connect (curl). Once we setup this monitor, we can check those services online timely. If any error / timeout case occur, system will contact related users through email, SMS, telegram…etc. It help us to provide maintenance service ASAP and minimize the down time of bussiness service.