Password-less SSH in Linux

The script from spirit Xi zhiqu has completed password-free verification, saving time and effort.

Execution method sh nopasswd user remote_host

Before executing this script, confirm:

• Id_dsa.pub already exists on the local machine. If no. Run the ssh-keygen-t dsa command to obtain the result.

• Log on to the user's home directory on the remote machine. The. Ssh folder already exists. If no. Ssh folder is created.

Nopasswd: copy the locally generated id_dsa.pub to the home of the machine to be accessed, and then add the id_dsa.pub content~ /. Ssh/authorized_keys, and finally make sure the permission settings are correct.

#! /Bin/shscp ~ /. Ssh/id_dsa.pub $1 @ $2 :~ /Ssh $1 @ $2 "touch ~ /. Ssh/authorized_keys; CAT ~ /Id_dsa.pub> ~ /. Ssh/authorized_keys; chmod 644 ~ /. Ssh/authorized_keys; exit"