Tag: sudo

sudo apt update vs upgrade: What’s the Difference?

If you want to keep your Ubuntu or Debian system updated, you use the combination of sudo apt update and sudo apt upgrade commands. Some older tutorial also mention sudo apt-get update and sudo apt-get upgrade. Both apt and apt-get commands work pretty much the same …

macOS Big Sur ‘vulnerable to Sudo bug’

Many Mac owners have used the Unix tool Sudo. It’s often used for Terminal commands when a user needs special user rights for a short time (with a command such as sudo nvram StartupMute=%01, for example, on Intel Macs, you can switch on the start tone); …

Root Access Sudo Bug Found to Affect macOS Big Sur

The security vulnerability, identified last week as “CVE-2021-3156” by the Qualys Security Team, affects sudo, which is a program that allows users to run commands with the security privileges of another user, such as an administrator. The bug triggers a “heap overflow” in sudo that changes …

How To Fix Sudo: Add-Apt-Repository: Command Not Found

How to fix sudo: add-apt-repository: command not found using sudo add-apt-repository ppa:some/ppa in Ubuntu Linux Systems. If you get the error message “sudo: add-apt-repository: command not found” while adding sudo add-apt-repository ppa:some/ppa, here is what to do: sudo apt-get update sudo apt-get upgrade sudo apt-get install …

How to Create a Sudo User on CentOS 7

We’ll guide you, how to create a sudo user on CentOS 7. Sudo is a Linux command line program that allows you to execute commands as superuser or another system user. The configuration file offers detailed access permissions, including enabling commands only from the invoking terminal; …