Book Image

Ubuntu Server Cookbook

By : Uday Sawant
Book Image

Ubuntu Server Cookbook

By: Uday Sawant

Overview of this book

Ubuntu is one of the most secure operating systems and defines the highest level of security as compared other operating system. Ubuntu server is a popular Linux distribution and the first choice when deploying a Linux server. It can be used with a $35 Raspberry Pi to top-notch, thousand-dollar-per-month cloud hardware. Built with lists that there are 4 million + websites built using Ubuntu. With its easy-to-use package management tools and availability of well-known packages, we can quickly set up our own services such as web servers and database servers using Ubuntu. This book will help you develop the skills required to set up high performance and secure services with open source tools. Starting from user management and an in-depth look at networking, we then move on to cover the installation and management of web servers and database servers, as well as load balancing various services. You will quickly learn to set up your own cloud and minimize costs and efforts with application containers. Next, you will get to grips with setting up a secure real-time communication system. Finally, we’ll explore source code hosting and various collaboration tools. By the end of this book, you will be able to make the most of Ubuntu’s advanced functionalities.
Table of Contents (20 chapters)
Ubuntu Server Cookbook
Credits
About the Author
www.PacktPub.com
Preface
Index

Creating a group


Group is a way to organize and administer user accounts in Linux. Groups are used to collectively assign rights and permissions to multiple user accounts.

Getting ready

You will need super user or root privileges to add a group to the Ubuntu server.

How to do it...

Follow these steps to create a group:

  1. Enter the following command to add a new group:

    $ sudo addgroup guest
    
  2. Enter your password to complete addgroup with root privileges.

How it works…

Here, we are simply adding a new group guest to the server. As addgroup needs root privileges, we need to use sudo along with the command. After creating a new group, addgroup displays the GID of the new group.

There's more…

Similar to adduser, you can use addgroup in different modes:

  • Add a normal group when used without any options

  • Add a system group with the--system option

  • Add an existing user to an existing group when called with two non-option arguments

Check out the manual page for the addgroup(man addgroup) to get more details.

See also

  • Check out groupadd, a low level utility to add new group to the server