Secure Shell (SSH) is used to make a secure connection to LC's production machines. By setting up SSH keys, you can access LC production machines using passwordless authentication. Use of SSH keys is only permitted between LC machines and not from outside the LC network or from desktop office machines.
By default, SSH will authenticate in secure password mode (i.e., when host1 does an SSH to host2 and is prompted for a userid and password, the information will be sent in encrypted form to host2). That way, passwords cannont be "sniffed" or sent "clear text" over the network.
One of the features of SSH is that it allows you to bypass this usual login method (userid/password) by setting up RSA/DSA authentication keys. DSA authentication is used by SSH version 2, but both are supported by OpenSSH.
The RSA/DSA key authentication methods allow you to optionally:
Creating RSA/DSA keys with OpenSSH is a one-time process that can be done as follows: