Kamis, 05 Juli 2018

How to setting SSH keyless linux system Centos

Some time as sysadmin we need to setup the host to login using ssh without typing password

Generate RSA public and private key by running following command line

[maswachid@ccontrol90 ~]$ ssh-keygen -t rsa

Create .ssh directory by running following command line

[maswachid@ccontrol90 ~]$  ssh [email protected] mkdir -p .ssh

Create .ssh directory by running following command line

[maswachid@ccontrol90 ~]$ cat .ssh/id_rsa.pub | ssh [email protected] 'cat >> .ssh/authorized_keys'

Change directory and file privileges

[maswachid@ccontrol90 ~]$ ssh [email protected] "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"

you can enter to target machine via ssh without password now

[maswachid@ccontrol90 ~]$  ssh [email protected]

Kamis, 05 Juli 2018