Many people use protocols like http/ftp to transfer the data, but sans of proper knowledge. How does it work? Whether it is safely reaching the desired destination, or it is being public, or someone illegally accessing it with out your consent.



Internet Protocol Addressing

This is a unique string of numbers that identifies a computer or server on the Internet. These numbers are normally shown in groups separated by periods. Example: 216.239.51.100 is Google's IP address. Hosting accounts for websites can have either a shared or unique IP address.

For readability purposes, humans typically work with IP addresses in a decimal notation that uses periods to separate each octet. For example, the IP address

00001010 00000000 00000000 00000001 Usually appears in the equivalent dotted decimal representation 10.0.0.1 Because each byte is 8 bits in length, each octet in an IP address ranges in value from a minimum of 0 to a maximum of 255. Therefore, the full range of IP addresses is from 0.0.0.0 through 255.255.255.255. That represents a total of 4,294,967,296 possible IP addreses.


Ever since man has learnt to interconnect his private network with other network, his second thought is how exchange only authorized data. Unknowingly many data gets allowed to be exchanged- sometimes intentionally data is assessed by others from one's private network. This is the called hacking. As the technology of exchanging data between personal networks increases the technology of unauthorized data assessing develops, man then thinks of a technology to prevent the unauthorized data accessing. This technology then took the shape of software- it is christened as firewall now.

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