Furthermore, authentication by address SSH keys is more convenient than using password, due to you will be able to connect server or multiply server without any need to remember and enter your password change each time.
The first is to configure the PasswordAuthentication no parameter in the /etc/ssh/sshd_config inside a address Match directive to apply it change only for a specific user, a list of users or a group.
This change connects you to the terminal of your linux server.
Choose actual OS address from drop-down list and mark Use SSH key.
Nano /.ssh/authorized_keys Once the editor is opened, paste the public key into the file by a single right click change and save and close.Key based authentication works with a pair of public and private keys.Restricting the ssh-key is one possibility to reduce the risk of an attacker hacking into your server by obtaining the ssh-key.Key passphrase: address and, confirm passphrase: fields.Nano /.ssh/authorized_keys Once the editor is opened, paste the public key into the file and save and close.You will see output similar to shown below.Now login to your remote Linux machine via PuTTY using the username and password.Apparently "replacing" means terminating and creating a new instance.

If the directory is already created it will not make any changes.
For CentOS/rhel/Fedora systemctl restart sshd For Debian or Ubuntu service ssh trimmer restart Now your server can also be crack logged in using the private key id_rsa only.
If you don't have control nano installed, you can install it using sudo yum -y install nano command for CentOS/rhel/Fedora.
Now you will need to crack crack copy the generated public key /.ssh/id_rsa.To update CentOS/Fedora/rhel run yum -y update, for Debian/Ubuntu run apt-get -y upgrade.We have learnt to configure SSH for key based authentication for both Linux and Windows users.But still you will be able to login to your server using the passwords.SSH passwordless login with SSH-key already contains the keytype, base64-encoded-key and comment.Finally rename the file to authorized_keys.The private key will be saved in id_rsa file and public key will be saved in id_rsa.Now create a new directory in the same directory by clicking the small new directory icon available on the control bar.The SSH connection to your server is one of the most important way of accessing and managing your server, because of this, alarmas it is a target for any attacker that wants serial access to your server.Connect server with SSH keys Connection via PuTTY (for Windows OS) Most convenient is to create and save profile for connection in PuTTY.As the example shows, other options are separated with a comma.(a wildcard that matches exactly one character).Cp /.ssh/id_rsa /.ssh/login_key In above address command you can change the directory and file name according to your choice.