Check Port

Examining the port is open is a tool you can use to check your external IP address and detect open ports on your connection. This tool is useful to find out if your port forwarding setup correctly or if your server application is being blocked by a firewall.This tool can also be used as a port scanner to scan your network to a port that is usually forwarded. It is important to note that some ports, like port 25, often blocked at the ISP in an attempt to prevent malicious activity. do you want check port your system, visit http://www.yougetsignal.com/tools/open-ports/