I have insert to authorized_keys the new data and still there is no connection. what do you mean by user@server?

okay, lets say you generated a keypair in open ssh as the user bob on the server bobscomputer. the resulting id_rsa.pub (default public key name) will read like ' ssh_rsa AAAAB3NzaC1yc2EAAAABIwAAAgEAwrr66r8n6B8Y0zMF3dOpXEapIQD9DiYQ‌​6D6/zwor9o 39jSkHNiMMER/GETBbzP83LOcekm02aRjo55ArO7gPPVvCXbrirJu9pkm4AC‌​4BBre5xSLS 7soyzwbigFruM8G63jSXqpHqJ/ooi168sKMC2b0Ncsi+JlTfNYlDXJVLKEeZ‌​gZOInQyMmt bob@bobscomputer'

i need to add user@ip to the end of the public key after i encode it with ssh-keygen?

no it should append it when its generated and its not actually important, just formatting. lets back up. did you generate the private and public keys with putty or with openssh or some other program?

all of my steps, I have created the keys with PuTTygen save both of them, I have upload the public key to another server, and download it with wget to .ssh folder. then i encode it with your syntax - ssh-keygen -i -f Public_Key > openssh.pub and then transfer it to authorized_keys and reboot the server. I haven't add any bob@bobcomputer, because i didnt know which name to give. my username on the raspberry machine is pi and localip 192.168.1.46. this is new key I have just created and put in the server. halomli.co.il/key

I have also tried right now to create keys with ssh-keygen but when i try to convert it its said uudecode failed

i think i confused you more than helped you, i thought you were further along. i've changed my answer to be more helpful

hey

c

hey ther

hey

i have succssed, the putty have been response

but he ask for password

do you mean when you imported the private key into putty it asked for a passphrase?

no

when you create the keys and when you import them into putty it allws you to set a passphrase for added security. if you enter one, you'll have to enter it again when you ssh to the server with a key. if you do not set a passphrase, you will not be prompted for a passphrase when you ssh with the key

i didnt enter a passphrase

i have also set: PasswordAuthentication no

when you copy pasted either key into authorized_keys or id_rsa did any characters get cut off?

i have done cp id_rsa.pub authorized_keys

i am kinda new im still learning the basics..

and the private key i have uploaded via ftp

no worries

help me out

you have a windows computer and a raspberry pi

you uploaded the private key that you just created on the raspberry pi to the windows host via ftp?