ASE : ssh to remote host without password

I found I lost my posts when I migrated my blog from xingstech.com to this free blog. Here is one I was looking this morning. steps used to setup ssh to remote host without password

How to ssh from Host1 to Host2 without password

on host1
- ssh host2
answer yes, then provide password

- Once get on host2,
cd $HOME
mkdir .ssh
cd .ssh
scp host1:$HOME/.ssh/id_dsa.pub authorized_keys