[AI] Tech Dose of the day: Secure Shell

vishnu ramchandani vishnuhappy at yahoo.com
Wed Jun 11 08:05:56 EDT 2008


Secure Shell (SSH)
Dosed by Vivekasundaram – M & E Team (from MphasiS Software Services)
What is an SSH?
Secure Shell or SSH is a secure Client/Server protocol for encrypting and transmitting data over a network. Whenever data is sent by a computer to the network, SSH automatically encrypts it and when the data reaches the indented recipient SSH decrypts it. Encryption provides confidentiality and integrity of data over an insecure network, such as the Internet.
What is its usefulness?
The SSH-2 protocol has an internal architecture with well-separated layers such as the transport, user authentication and connection layer .SSH supports secure remote logins, secure remote command execution, secure file transfers, access control, TCP/IP port forwarding and other important features.
SSH-2 is more secure from the standpoint that the communication is encrypted and some attempt has been made to guarantee the authenticity of the users, the client and 'server' applications haven't been compromised and that the data being transferred has not been tampered with during transport between the two endpoints.
Further References
http://en.wikipedia.org/wiki/Secure_Shell


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