Steps to setup SSH Login Without Password Using ssh-keygen and ssh-copy-id

SSH-Login-Without-Password
mm
Written By:- Santosh Prasad

In this tutorial I will describe how you can setup SSH login without password using ssh-keygen and ssh-copy-id. ssh-keygen is used to create the public and private keys and ssh-copy-id used to copies the local host’s public key to the remote-host’s authorized_key file. ssh-copy-id also assigns proper permission to the remote-host’s home,  ~/.ssh, and ~/.ssh/authorized_keys.

Follow the below steps to login your remote Linux server without password.

Step #1: Creating Public and Private keys Using ssh-key-gen

[email protected]$ [local-host here]

[email protected]$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/user/.ssh/id_rsa):[Press Enter key]
Enter passphrase (empty for no passphrase): [Press enter key]
Enter same passphrase again: [Press enter key]
Your identification has been saved in /home/user/.ssh/id_rsa.
Your public key has been saved in /home/user/.ssh/id_rsa.pub.
The key fingerprint is:
33:b3:fe:af:95:95:18:11:31:d5:de:96:2f:f2:35:f9 [email protected]

Step #2: Copy Public Key on Remote Host using ssh-copy-id

[email protected]$ ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host
[email protected]'s password:
try logging into the machine, with "ssh 'remote-host'", and check in:

.ssh/authorized_keys

Make sure we haven't added any extra keys.

Note :- ssh-copy-id will append the keys to the remote host’s .ssh/authorized_key.

Step #3: Login to Remote Host without Password

[email protected]$ ssh remote-host
Last login: Mon Feb 17 17:22:33 2017 from 192.168.1.5

[Here SSH will not ask for type password.]

[email protected]$ [Here you are on remote host]

That’s it.

I hope this article will help to setup SSH Login Without Password. If you have any queries and problem please comment in comment section.

Thanks:)

About Author

mm

Santosh Prasad

Hi! I'm Santosh and I'm here to post some cool article for you. If you have any query and suggestion please comment in comment section.

Other Post by Santosh Prasad

Visit All Post

Related Article

You may also Like

Leave a Comment

Shares