UNIX for Dummies Questions & Answers

Hi,

I using ssh-keygen for passwordless authenciation firstly
and I am following these steps mentioned below...

1) Login to pngpcdb1 using your user/pass
2) type 'bash' (without quotes)
3) ssh-keygen #generates private and public key.
4) copy this private key to the location of your sftp script
5) mkdir ~/.ssh
6) create a file named authorized_keys in ~/.ssh
7) chmod 600 ~/.ssh/authorized_keys
8) cat sftp_rsa.pub > ~/.ssh/authorized_keys
9) copy public key to ~/.ssh folder


firstly I login to remote machine thru putty with me credentials and then i enter in the remote server ...the issues is when I again reenter this machine with my credentials then I eneter ssh pngpcdb1 , it asks for password but it should not ask for password since now authentication is key based..!!

Lets say you want to ssh from server1 to server2 as user "admin"

Actions on server1
1. Log into server1
2. Execute "ssh-keygen" to generate the keys
3. By default keys will be generated at ~/.ssh ($HOME/.ssh)
4. ftp the ~/.ssh/id_rsa.pub to server2 as /tmp/id_rsa.pub_server1

Actions on server2
1. Log in to server 2 as "admin"
2. Create the directory ~admin/.ssh if not present
3. Copy the contents of /tmp/id_rsa.pub_server1 to ~admin/.ssh/authorized_keys. Create the file authorized_keys if not present and chmod to 600.

Following should work without password.

Code:

server1> ssh admin@server2

HTH
--ahamed