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