Open Port Check Tool

Open Port Check Tool

Most residential ISP's block ports to combat viruses and spam. The most commonly blocked ports are port 80 and port 25.

An IP address

An IP address

An IP address can also be thought of as the equivalent of a street address or a phone number for a computer or other network device on the Internet. Just as each street address and phone number uniquely identifies a building or telephone, an IP address can uniquely identify a specific computer or other network device on a network.

Static And Dynamic Ip address

Static And Dynamic Ip address

A Static IP address is where a computer uses the same address every time, as opposed to situations where the user IP address changes frequently, when a user logs on to a network by dialup or on shared residential cable. Static addressing is essential in some infrastructure situations, such as finding the Domain Name Service directory host that will translate names to numbers.

External IP Address

What is an External IP Address

An external IP address is the unique identifier assigned to you by your Internet Service Provider (ISP). There are to types of external IP address, static and dynamic. Static is fixed and therefore never changes. Dynamic changes every time you connect to the internet.