On Client:

mkdir -p $HOME/.ssh
chmod 0700 /.ssh
ssh-keygen -t dsa -f /.ssh/id_dsa -P ''
Generating public/private dsa key pair.
Your identification has been saved in /.ssh/id_dsa.
Your public key has been saved in /.ssh/id_dsa.pub.
The key fingerprint is:
da:1e:03:7e:60:37:41:0d:81:81:b2:02:88:7d:0f:bf root@x4500z1
# ls -l /.ssh
total 6
-rw------- 1 root other 668 Oct 19 17:26 id_dsa
-rw-r--r-- 1 root other 602 Oct 19 17:26 id_dsa.pub
-rw-r--r-- 1 root root 447 Oct 19 16:57 known_hosts

On Server:
Copy id_dsa.pub@client to server
mkdir -p $HOME/.ssh
cat /download/id_dsa.pub >> /.ssh/authorized_keys
chmod 0600 /.ssh/authorized_keys





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