A tool that make connecting to remote host with just one command:
    h t1

SSH key pair is used. If you don't what it is, try this. http://www.debuntu.org/ssh-key-based-authentication

*Examples*
1. add a host
    h -a 192.168.1.2 -n t1 -d some test machine

2. login to a remote host
    h test1

    h 192.168.1.2

3. search hosts
    h -s test

    h -s 168

4. remove a host
    h -x t1