Generate ssh keys of your current system
$ ssh-keygen -t rsa
Install openssh if not already installed on your system. On arch linux you can install it as follow, for other distribution follow distribution instructions to install openssh
$ sudo pacman -S openssh
If you already have created ssh keys and now created new one and now seeing this message “sign_and_send_pubkey: signing failed: agent refused operation”.
You need to add ssh key to your machine.
check if ~/.ssh directory is already created on server, if not created already then login to server using ssh and do following
$ mkdir ~/.ssh $ chmod 700 ~/.ssh/
Now go back to your machine and upload your generated public ssh key to server
$ cat ~/.ssh/id_rsa.pub | ssh user@server_ip-or-server-name 'cat >> .ssh/authorized_keys'
login by username from your machine
$ ssh user@server_ip-or-server-name
You may need to set permission of authorized_keys file to 600 on server, to do that ssh login into server and set permissions as follow
$ chmod 600~/.ssh/authorized_keys
enjoy folks 🙂