SSH to your server without password

[carl]

SSH Key Generation and Authentication
=========================
First of all you will have to generate SSH Key ( the private key ) on your linux local computer and then update your remote linux computer or server with the authorized_keys ( the public key ).

Inorder,to generate SSH Key on your Linux Web Server system you can follow the below steps:-

1. Check if .ssh folder already exist under your home directory ( /home/user-name/.shh ).
If not create a folder .ssh
# mkdir .ssh

2.Now generate or create SSH key run ssh-keygen command.
# ssh-keygen -t rsa

Press enter for all the below options to save the default settings:
-> Enter file in which to save the key (/Users/exampleuser/.ssh/id_rsa):
-> Enter passphrase (empty for no passphrase):
-> Enter same passphrase again:

Now you have created the Keypair. You can find all the newly generated files in your .ssh folder.

# ls
id_rsa id_rsa.pub known_hosts

Now you need to copy the *.pub file to your remote computer or server.

SSH Key Authentication
===============

Copy the file id_rsa.pub to your web server and save it as authorized_keys under /home/user-name/.ssh/ .

[Sean]

However, make sure you allow only few IPs to access to SSH keys too.

That will definitely help to enhance security. ;)

[sam]

Great!!!
I follow your post and it works,I am interested in accessing the ssh-server like rsh without any type of authentication.

[Sean]

Not sure,

Is this something relating Suse-linux ?

[aliya]

Can anyone explain to me what is Suse-linux?

[carl]

SuSE is an acronym of "Software und System Entwicklung" (Software and System Development)

It is founded by German Unix consulting company in 1992. In 1994, it released S.u.S.E. Linux 1.0, which was based on Softlanding Linux System (SLS) and Slackware Linux.

[BodShane]

Well, this is in relation to Suse-linux too.

[Christina]

If you want to enable remote connections to the server you won't require a password, do not enter a passphrase. If you enter a non-empty passphrase, when connecting to the remote server you will be asked for the passphrase instead of the password!

Append the public key to the file authorized_keys2:

server1:~/.ssh> cat id_dsa.pub >> authorized_keys2