CentOS7 reset root password change host name

CentOS7 reset root password change host name
1. Modify the Host Name of CentOS

It is easy to modify the host name in CentOS. First, check the current host name.

#hostname

The current host name is displayed. Modify the command

#hostnamectl set-hostname name

Run the hostname or hostnamectl status Command to check whether the change has taken effect.

#hostnamectl status

CentOS7 is easy to modify the host name. The following describes how to reset the root password.

Ii. Reset the root password

Start CentOS and press

Go to the editing page

Find the line in Linux 16 and change ro to rw init =/sysroot/bin/sh.

Now press Control + x to start in Single User Mode

Now, you can use the following command to access the system

chroot /sysroot

Then type the command

password

Press enter, enter the new password as prompted, and then execute

touch /.autorelabel

Then execute

exitreboot

You can.