LinuxQuestions.org - remove password request during scripted ssh login?

- Mandriva (https://www.linuxquestions.org/questions/mandriva-30/)

- - remove password request during scripted ssh login? (https://www.linuxquestions.org/questions/mandriva-30/remove-password-request-during-scripted-ssh-login-633337/)

remove password request during scripted ssh login?

can someone please explain or point me to a tutorial
on how to use rsa keys to eliminate the remote computer's
request for a password during an ssh login? i want to use
a script to log in and therefore would like to eliminate
this password request. something mandriva-specific in the
form of a step-by-step walkthrough would be very helpful.
i am able to login now via ssh but would love to be able
to incorporate this into a script. using 2007.1 (spring)
here.

thanks,
BabaG

Not distro specific but shows the creation of the passphrase, correct permissions on the certain files and directories, and other info. You will need to run the ssh-add command or something similiar and enter the passphrase before it work headless why. Not sure of how to specify the passphrase automatically. I think it would be a bit of security issue if the setup would rquire the passphrase to be present in a plain script to work this way. Maybe someone knows a good way for that.

http://www.suso.org/docs/shell/ssh.sdf

Brian

It's dead easy to do:

Code:

ssh-keygen -t rsa -f mykeypair

Just press return when it asks for a password.
It'll create two files, mykeypair (which is your private key, so keep it safe), and mykeypair.pub (the public key that everyone can see). Append the mykeypair.pub file to the <userhomedir>/.ssh/authorized_keys file on the server (if it doesn't exist just create it). Then move your private key (in this case 'mykeypair' to your home/.ssh/id_rsa file, and move the mykeypair.pub file to home/.ssh/id_rsa.pub.

That should be job done. Try and log into the server. ssh will (should) handle to key exchange automatically.

So the complete steps will be:

Code:

ssh-keygen -t rsa -f mykey

scp mykey.pub <username@server>:.ssh/authorized_keys

mv mykey ~/.ssh/id_rsa

mv mykey.pub ~/.ssh/id_rsa.pub

There's plenty of tutorials on the web if you get stick. Google is your friend. It's the same for all distros.
Good luck.

Once you have generated your key, use ssh-copy-id to transfer your public key to the remote server - it is simpler than editing the .authorized_keys file.

thanks all! exactly what i needed.

BabaG