ViewDNS.info > Tools > Port Scanner This web based port scanner will test whether common ports are open on a server. Useful in determining if a specific service (e.g. HTTP) is up or down on a specific server. Ports scanned are: 21, 22, 23, 25, 80, 110, 139, 143, 445, 1433, 1521, 3306 and 3389 Domain / IP Address:

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