Manage Linux user account is a very important task in Linux. It begins with creating a user account and creating password for that particular user account and then, you might have to assign group for that user. Maybe at one time you might have to change a user particular (user information) such as update telephone number or department where the user works. You also don't want to keep an account of user who no longer works in your office or temporary officer in your server.

The Linux finger command displays information about the system users. We can view all information about user if we know the user account login name. Below are some examples of the Linux finger command with useful options that you can use to view user information.

Type 'finger' at the command prompt without any option will give an output of users currently log in the system:

One of system administrator's job is to manage groups in Linux system. Manage groups task including create new group, assign users to group, remove users from group, delete group and manage group's permission. In this tutorial, we are going to look at some commands needed to manage groups in Linux system.

Linux groupadd command

The groupadd command is used to create a new group in the linux system. Here is a basic information in the groupadd manual page.

Linux, which is based on Unix, is a network operating system. It means, Linux is an operating system designed to served end user systems such as workstation and personal computer.

Linux also provide other important network services including printer sharing, database sharing, ftp, routing, security and so on.

In this tutorial, user will learn from basic network configuration which is configuring network interface card to the advanced server configuration.

There are many useful open source programs in the Internet such as network security tools, Internet security tools and multimedia software available for Linux. Those programs available in a package compiled for certain Linux distribution and some package only available in source. Examples of software package files are rpm for Redhat and .deb for Debian while a source file, normally in '.tar.gz' type is for all Linux distributions. The '.tar.gz' file is a tar archived file and has been compressed with gunzip program.