Detailed Implementation of password-free logon tutorials and Linux tutorials in linux

Detailed Implementation of password-free logon tutorials and Linux tutorials in linux

How to Implement password-free logon in Linux

This article mainly introduces information about password-free logon in Linux. It is very good and has reference value. If you are interested, let's take a look.

1. Generate a key in Linux

For the command manual of ssh-keygen, run the "man ssh-keygen" command:

Run "ssh-keygen-t rsa"

A ". ssh" folder is generated in the root directory of the user.

Entering ". ssh" will generate the following files:

Authorized_keys: stores the public key for remote password-free logon. This file records the public keys of multiple machines.

Id_rsa: generated private key file

Id_rsa.pub: generated public key file

Know_hosts: list of known host public keys

If you want the ssh public key to take effect, you must meet at least the following two conditions:

1) the ssh directory permission must be 700

2). The ssh/authorized_keys File Permission must be 600