TheOne Server Monitor Lite is using to monitor the healthiness of servers, such as Unix/Linux (PING/RSH), Web (HTTP/URL), Email (SMTP/POP3/IMAP), Database (MySQL) and Application (FTP / Telnet / DNS/ SNTP-TIME/ NNTP-NEWS/WMI Process Checking) servers. User can customize to monitor any TCP/UDP Port. Server Monitor will notify you by e-mail/SMS/Pager if any of your monitored servers or URLs can't be reached (or returns an unexpected response) a number of times.
Supports HTTP/URL, Ping, FTP, Telnet, POP3, SMTP, DNS, IMAP, NNTP, SNTP, RSH, WMI and any other TCP/UDP port you want to monitor.