Linux Security Ubuntu

Ubuntu Change Password

In terms of security, Linux is definitely one of the tightest. The password system is one of the most important parts. Without the password, you’re not able to access a secure system and do anything. If you allow system access without a password, it is not secure. No password, no nothing, in terms of security. However, you may also need to change your password at any point. Let’s have a look at changing the password of your system.

Changing the password

This is the password that you have to enter when you’re logging into your account. This password isn’t the “root” password. Let’s fire up a terminal and run the following command –

passwd

This will prompt you to enter your current password. Then, you have to type your new password 2 times.

Changing the “root” password

The “root” is the ultimate user account for any Linux system that offers the most control over the system, even allowing access to sensitive system files and other files. For changing the “root” password, run the following command –

sudo -s
passwd

# OR

sudo passwd

Then, restart your system.

Changing password without the current “root” access

In cases, you may not be able to access to your system because you forgot the “root” password. It’s also possible to change the password without having access to the system. Restart your system.

Keep holding “Shift” to access the GRUB menu.

Press “E” for editing the startup command.

Get to the line “linux /boot”.

At the end of “ro”, type the following text –

init=/bin/bash

Press “Ctrl + X” to boot with the modified startup command. Run the following commands –

mount -o remount,rw /
passwd

Enter your new password. After password changing is successful, run the following command for restarting your system –

reboot –f


Voila! Your password is changed successfully!

About the author

Sidratul Muntaha

Sidratul Muntaha

Student of CSE. I love Linux and playing with tech and gadgets. I use both Ubuntu and Linux Mint.