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 to `authorized_keys`?

Accepted Answer

Make sure when executing Michael Krelin's solution you do the following

```
cat <your_public_key_file> >> ~/.ssh/authorized_keys
```

Note that without the double `>>` the existing contents of `authorized_keys` will be over-written (nuked!) and that may not be desirable.

How to add RSA key to authorized_keys file?

Solution

Problem