Hello and welcome you to our video tutorial “Linux for Beginners”.
Today in this tutorial we will be learning about User and User groups in Linux.
Types of Users
There are three types of Users in Linux
Administrative (root)
Regular user
Service user
The Linux administrative root account is automatically created when you install Linux, and it has administrative privileges for all services on Linux Operating System.
The root account is also known as super user.
The root account is also known as super user.
Regular users have the necessary privileges to perform standard tasks on a Linux computer such as running word processors, databases, and Web browsers.
They can store files in their own home directories.
Since regular users do not normally have administrative privileges, they cannot accidentally delete critical operating system configuration files.
Services such as Apache, Squid, mail, games, and printing have their own individual service accounts.
These accounts exist to allow each of these services to interact with your computer.
These accounts exist to allow each of these services to interact with your computer.
User Identification Number
Each user on Linux system is assigned a unique user identification number, also known as a UID.
UIDs below 500 are reserved for system users such as the root user and service users.
This is an snapshot of a server user page showing user created on the server
In the image if we zoom ahead we can see user has been created for FTP service which is an service user.
The user is assigned 14 as User Identification Number
The user is also assigned a Group Identification Number as 50
User Groups
A user group is an group of one or more users.
A user can be member of one of more user groups.
In Linux when a user is added, a private user group(primary group) is created which is his default group.
The group is created by default with his own name and he will always belong to that group.
In Linux when a user is added, a private user group(primary group) is created which is his default group.
The group is created by default with his own name and he will always belong to that group.
Now let’s continue our journey and meet In the next tutorial.
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