Enable and Disable Ubuntu Root Password

ตั้งรหัสผ่านให้ root แล้วไม่อยากใช้รหัส root อีกต่อไป จะลบรหัส root ไงหว่า

If you want to enable root account (which is not recommended) enter the following command.

sudo passwd root

หรือ

sudo passwd

This will prompt for a new root password and once you confirm it, you can start using the root account to login.

If you want to disable root account in ubuntu you need to lock the root account by using the following command

sudo passwd -l root

หรือ

sudo passwd -d root

If you want to work on a root console you’d better use the following command

sudo -i

Reference

• http://www.ubuntugeek.com/enable-and-disable-ubuntu-root-password.html
• http://www.debianadmin.com/enable-and-disable-ubuntu-root-password.html