List of articles

• Two sets of Linux Password free login
  • #1 Environmental Science
  • #2 demand
  • #3 Start
    • #3.1 Install the necessary plug-ins
    • #3.2 To configure

Two sets of Linux Password free login

#1 Environmental Science

Ubuntu 16.04

#2 demand

• Realize two Ubuntu Virtual machine password free login

#3 Start

#3.1 Install the necessary plug-ins

sudo apt-get install openssh-server

#3.2 To configure

My two Ubuntu The situation of the machine is as follows :

master 192.168.3.230
slave 192.168.3.231

1. stay master To configure ssh

Enter all the way , Don't enter the password !!!

ssh-keygen -t rsa

2. take master Copy the public key of to slave

# ssh-copy-id username@host
ssh-copy-id root@192.168.3.231
# root Is the user name of the remote server , That is, the user name on the remote machine .

Be careful :

• stay liunx In the environment , To copy a public key or private key , Do not use vim Wait for the editor to open the file to copy and paste ; Because it will produce an unnecessary return .
• appear bash: ssh-copy-id root@192.168.3.231: command not found. It's not installed ssh-copy-id command ; Carry out orders ： sudo yum -y install openssh-clients

3. Verify success

ssh root@192.168.3.231