วันอังคารที่ 24 กรกฎาคม พ.ศ. 2555

ssh with out password

Are you boring with entering password every times logging in to linux via ssh? The followings are time saving and secure without storing user password in clear text.

HOST_SRC = Your system.
HOST_DEST = The system you want to login.

1. On HOST_SRC
-generating key (/.ssh/id_rsa.pub) when you are prompted to enter pass pharse just press enter.
$ssh-keygen -t rsa


-transfer id_rsa.pub to HOST_DEST use scp.
$scp ~/.ssh/id_rsa.pub username@ip:/home/username/
(this will be the last time you enter password :) ) 


2. On HOST_DEST 

$ cat id_rsa.pub >>~/.ssh/authorized_keys
$ chmod 700 ~/.ssh/authorized_keys






refer: https://blogs.oracle.com/jkini/entry/how_to_scp_scp_and