Confidentiality on Online Communication

The risk of having personal and business information land into the wrong hands is quite real in the online world. In fact, most, if not all preventive measures were designed in response to a particular attack on online security. The secure shell or SSH is one such measure, which is basically a network protocol that allows data to be exchanged over a secure channel between two computers. Confidentiality and integrity of data is maintained through encryption and proper authentication.

SSH is commonly used in logging into remote machines and executing commands. It likewise supports tunneling, forwarding arbitrary TCP ports and XII connections. Files are transferred with the use of the associated SFTP or SCP protocols. A revised version of the protocol, the SSH-2 has been introduced and became a proposed Internet standard.