OpenSSH

OpenSSH is a set of free tools which is used for network security.  All the components in the network traffic including the passwords are encrypted through the protocol so that any kind of malicious activities such as eavesdropping, hijacking and any other network attacks are eliminated.  OpenSSH consists of a ssh program and scp which work as a replacement to telnet and rlogin. It works with sftp and sftp – server which makes file transfer.