How to add RSA key to authorized_keys file?

Question

I\'ve created an RSA public key and I want to add that to authorized_keys file, but there is no such file in my Ubuntu 11.10 machine.

How can I add the key

Answer 1

I know I am replying too late but for anyone else who needs this, run following command from your local machine

cat ~/.ssh/id_rsa.pub | ssh user@192.168.1.1 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys"

this has worked perfectly fine. All you need to do is just to replace

user@192.168.1.1

with your own user for that particular host