Creating ssh key pair
Make sure authorization key writable on the remote
chmod 600 /home/ubuntu/.ssh/authorized_keys
Generate the key on the client
ssh-keygen
For our purposes you can accept all the defaults.
If you haven’t changed any setting, by default you will find your newly created key pair in your home directory under .ssh subfolder.
- Copy SSH Public Key to Raspberry PI
Once you have generated the key pair, you will need to copy the public key to Raspberry by issuing the following command:
ssh-copy-id -i ~/.ssh/id_rsa pi@<YOUR_RASPBERRY_IP>
where:
- id_rsa is the name of SSH key you generated in the previous step
- pi is Raspberry user
- <YOUR_RASPBERRY_IP> is the IP of your Raspberry PI box
Modify the values according to your specific environment.
You will need to keep the private key on your workstation in order to be able to connect to Raspberry.
Test ssh connection to Raspberry PI
You should now be able to connect to Raspberry without a password, try the following command:
ssh -i ~/.ssh/id_rsa pi@<YOUR_RASPBERRY_IP>
If everything is fine, you are in and ready to go !!!
Now we can create a file rpi.sh and use:
ssh ubuntu@<REMOTE_IP>
by default it uses -i ~/.ssh/id_rsa as the key
Run this to login to the pi
