Linux Protection boot password (2)

As long as you are familiar with Linux, know how to change the password, but it is not safe, because everyone can modify, how to protect them? There is a way to set the password at the time, set a password to protect it, not it?

One: First, go to the Super User directory

Use command: vi/etc/grub.conf

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After entering this state, press the I key to enter the editing state, under the configuration file under the title CentOS 6 input command password=123456, note that must not be configured elsewhere, or there will be an error. After entering, press ESC, enter: wq!, press ENTER, then restart.

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Follow the appropriate steps to enter the following view

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, you need to press the P key and enter the password you just entered in grub to enter the edit state.

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Enter the password to see the success! Before you can do the next step!

This article is from the "Costin" blog, make sure to keep this source http://brighttime.blog.51cto.com/12837169/1964784

Linux Protection boot password (2)