A step by step guide on setting up multiple SSH keys for password less login.
ControlMaster is a new feature in OpenSSH v 4.x, that allows it to reuse an existing connection to a remote host when opening new connections to that host
“Using this feature you can increase performance as it result into the reduced connection times that the ControlMaster feature provides are particularly nice when you’re using tools that open multiple SSH connections to do work on a remote server…” Read more…
On a related note, here’s a short guide on reusing existing OpenSSH v4 connections written by steve.
The SSH protocol recommended a method for remote login and remote file transfer which provides confidentiality and security for data exchanged between two server systems. The SSH depends upon the use of public key cryptography. The OpenSSH server offers this kind of setup under Linux or Unix-like system. This how-to covers generating and using ssh public keys for automated usage such as:
- Automated Login using the shell scripts
- Making backups
- Run commands from the shell prompt and more
- Login without password