Solar-Putty is a great FREE alternative of PuTTY utility made by Solarwinds thats as an SSH Client just like Putty. It does not require installation, it just go straight to work. With Solr-PuTTY you can manage multiple sessions from one console with a tabbed interface, save credentials or private keys to any session for easy login. It gives ability to run scripts when connection is established. It automatically prioritize most used connection for easier access. It gives provision for color coding session for not mixing up.