Ssh-login without bothering passphrase

just kwick n dirty:

if you want to get rid of that bothering passphrase while connecting via ssh to host, just append your ~/.ssh/id_rsa.pub on your local machine at the file ~/.ssh/authorized_keys at the target host.

scp ~/.ssh/id_rsa.pub <user>@<host>:/<home>/<user>/.ssh

then log into the target machine, and enter
cat ~/.ssh/id_rsa.pub >> ~/ssh/authorized_keys'''

even faster: there if you start the program ssh-agent it will provide some scripts that do things like this for you:

ssh-copy-id -i ~/.ssh/id_rsa.pub <user>@<host>