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08/13/2019

How to Gain Superuser Access in Linux

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There is a superuser in every operating system we find today. A superuser is a user who has the overall privilege to the file system. He has the power to manage users, create passwords, and do the entire administrative task in the system. A superuser has every privilege to damage the system. Thus, the need […]

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08/19/2019

How to Manage Local Users Account in Linux

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Every operating system has regular users who are not regarded as the local administrator as in windows or root as in UNIX-like and Linux systems. In Linux systems, every process run as a particular user, and a particular user owns all files in the system. Since Linux was designed to allow multiple users to have […]

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08/20/2019

How to Manage Groups Account in Linux

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INTRODUCTION Managing local group accounts involves creating, modifying, deleting a group and as well as displaying information about a group. You can also perform other operations like adding and removing local users from a group. Linux uses groups to organize users for information sharing and file privacy. Local groups in the Linux system are defined […]

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08/21/2019

How to Set Users Password and Password-aging Policy

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The username and password are two mechanisms needed to access a Linux system, and these two mechanisms are stored separately in two different files to ensure the security of the system. Traditionally, Linux and other Unix-like systems stores encrypted passwords in a world-readable format in the /etc/passwd file. As this file holds the information about […]

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08/22/2019

Understanding Linux File System Permissions

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For effective management of files, Linux decided to categorize authorization in two levels, which distinguishes how users of the system access files and directories. These two categories are ownership and permissions. Every file created in the system is assigned to three types of owners; the user, group, and others. A created file is owned by […]

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08/25/2019

How to Set System Permissions from the Command Line in Linux

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To manage file permissions from the command line is pretty easy when you know the command necessary to execute your instructions. The command used to change permissions from the command line is the chmod command, which stands for “change mode.” The chmod command accepts sets of permissions to be assigned as instructions followed by the […]

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08/26/2019

How to Set Special Permissions and Default Permissions in Linux

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The security of Linux files systems depends on the type of permission set. However, we have discussed how to use the chmod command to set permissions on files and directories. They are other permissions one can use to protect files and directories in Linux systems. These are special permissions and the system default permissions which […]

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08/27/2019

How to Evaluate and Control Processes Running on a Linux System

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In every operating system, there is always a process running either on the foreground or in the background. Processes are running instance of an executable program which consists of an address space of allocated memory, security properties which includes ownership and privileges, one or more threads of program code and the program state. Every command […]

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How to Control Jobs Using Bash Job control in Linux

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The fact that Linux is a multitasking operating system, they allow users to run multiple jobs/commands simultaneously. This is an exciting feature in Linux and Unix-like systems as users are bound to choose either to run a command on the foreground or at the background. Firstly, let us get to know what a job control […]

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08/28/2019

How to Kill Processes Running on Linux Systems

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One of the interesting features that make Linux operating systems to be different from other operating system is the fact that the operating system comes with a kill command. Have you ever wondered why Linux servers have a high run-time?. This is because most of Linux packages can be installed, updated or upgraded without having […]

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