I am using OpenSSH on Red Hat Linux. How do I set up the known_hosts file in the .ssh folder so that I can log on to remote machines without typing in a password?

1. On your local machine, you need to create a private/public key files.
   Log in, they type "ssh-keygen -t rsa", and just press enter when asked for the passphrase (no password). It will put two files in your ~/.ssh/ folder. They are "id_rsa" and "id_rsa.pub". Don't give out your "id_rsa" file, it is private. The "id_rsa.pub" is the public key and you need to add it to the remote computer's "authorized_keys" file. Once it is added, you should be able to connect with no password.
2. This looks to be closer to answering your question:
   http://www.astro.caltech.edu/~mbonati/wi…
3. http://amath.colorado.edu/computing/unix…

   This should help get you started.

Tags: linux desktop, hardening linux