Tags: command

How to See What's Going on With Your Linux System Right Now

Is that service still running? What application is using that TCP port? These questions and more can be answered easily by sysadmins who know simple Linux commands. If you're a system administrator responsible for Linux servers, it's essential that you master the Bash shell, especially the commands...
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How to Use dd in Linux Without Destroying your Disk

Whether you're trying to rescue data from a dying storage drive, backing up archives to remote storage, or making a perfect copy of an active partition somewhere else, you'll need to know how to safely and reliably copy drives and filesystems. Fortunately, dd is a simple and powerful image-copying...
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groups
Learn how to work with users, via groups and access control lists in this tutorial.

How to Manage Users with Groups in Linux

When you administer a Linux machine that houses multiple users, there might be times when you need to take more control over those users than the basic user tools offer. This idea comes to the fore especially when you need to manage permissions for certain users. Say, for example, you have a...
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What is a Socket?

Recently, while reviewing the FAQ, I came across the question “What’s a Socket?” For those who are not familiar, I shall explain. In brief, a Unix Socket (technically, the correct name is Unix domain socket, UDS) allows communication between two different processes on either the same machine or...
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