Linux system reinforcement: add security protection layer to GRUB

There must also be a method to hold your feet. The 26th is approaching. I cannot guarantee that I can remember too many things in a short time and they are all right, assume it's a monkey, Dad, and B. You can't watch it, hahaha ~ (You are not responsible for any error. Sorry !)

Updating ......

GRUB Security Settings

Grub File Location: "/etc/grub. conf"

Check whether the password is set for grub and run "vim/etc/grub. conf"

The system does not add a password to grub by default. Next, add a protection layer to grub.

First, encrypt the MD5 of the password to be added. To facilitate the operation, run the following command in the vim Editor: "! /Sbin/grub-md5-crypt ", then enter the password:

Obtain MD5-encrypted characters:

First, add "lock" to the grub. conf file, and then "password" to add the string encrypted with MD5:

Run ": x" to save and exit the reboot system. You can find that grub has been locked:

Then press enter to enter the grub boot interface. In this case, you need to enter the password to enable grub to boot the system:

Enter "p" and password:

After entering the password, press enter to guide the system:

Log on to the system and you will be OK. It's time to go back to the bedroom and have a rest!