About Secure Shell

[supplyandd]

Is Secure Shell (SSH) free ?

 

[dotcomguy]

OpenSSH, a 100% free and open source outgrowth of the OpenBSD project, has very rapidly become the preferred version of SSH for open source Unices; as of this writing, the latest releases of Red Hat, Debian, and SUSE Linux all ship with binary packages of OpenSSH.

http://sshwindows.sourceforge.net/

 

[supplyandd]

How it works ?

 

[dotcomguy]

It works very similarly to Secure Sockets Layer web transactions. Both can set up encrypted channels using generic host keys or with published credentials (digital certificates) that can be verified by a trusted certificate authority.

 

[supplyandd]

How OpenSSH builds secure connections ?

 

[dotcomguy]

First, the client and the server exchange (public) host keys. If the client machine has never encountered a given public key before, both SSH and most web browsers ask the user whether to accept the untrusted key. Next, they use these public keys to negotiate a session key, which is used to encrypt all subsequent session data via a block cipher such as Triple-DES (3DES), blowfish, or IDEA.

 

[LSComputers]

works great im using it on a home server, for testing, love it..

 

[kiz9999]

thank god it is free. It is great that there are so much open source out there.