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Operating System Articles
Page 120 of 171
Docker Container Network Namespace Is Invisible
This article will look at a problem with the network namespace file in a Docker container. We'll examine why the network namespace file is invisible to the ip netns ls command. Before moving ahead, let's have a brief overview of Docker, Containers and Network Namespace Containerization Containerization is similar to virtualization, in which an application and all its dependencies and libraries are packaged into a single container; it can run in any computing environment. When the OS kernel and all necessary libraries and dependencies are included in the container, anyone working on the application can use only the container to ...
Read MorecURL Command Without Using Cache
Introduction cURL (Client URL) is a command-line tool. It allows data to be transferred to or from a server without requiring user interaction by utilising the supported libcurl library. cURL can also be used to troubleshoot network connections. In some cases, we may need to send requests that bypass the cache and generate a new response from the server. Caching can occur on the client side (browser cache) or the server side. When using the cURL command, remember that it is only an HTTP client and does not cache any requests on the client side. As a result, any caching ...
Read MoreCreating a Hex Dump of a File
Introduction Hexdump shows the binary file contents in hexadecimal, decimal, octal, or ASCII form. It is an inspection tool that is also useful for programming, reverse engineering, and data recovery. It represents the content of a file in hexadecimal form. The various tools we can use to generate a file's hex dump will be covered in this article. We will learn to create a hex dump of a file. To utilise as a model for this article, let's generate an ASCII text file. $ cat >> example.txt This is our sample text in the file. We will convert it ...
Read MoreConvert Hex to ASCII Characters in the Linux Shell
Introduction If a numbering system is represented in base 16 then it is considered to be hexadecimal. In this article we will understand to convert Hex to ASCII in the Linux Shell. The hexadecimal system uses a combination of digits and alphabetic characters, and it looks like this −0 1 2 3 4 5 6 7 8 9 A B C D E F Large digital systems are best suited for a hexadecimal numbering system since it can store and express long binary data. Because a total of 16 symbols (both digital and alphabetic, ranging from 0 to F) ...
Read MoreDifference between Twisted Pair Cable, Co-axial Cable and Optical Fibre Cable
We are getting different types of services by using various modes of communication. The wired method of communication is one of the most efficient and successful modes. There are different types of cables available such as twisted pair cables, coaxial cables, and optical fiber cables. Read through this article to find out the characteristic features that differentiate these cables. What is a Twisted Pair Cable? A twisted pair cable comprises two insulated wires that have been twisted together. They are in use in the field of communications for a long time. You might have seen this type of cable ...
Read MoreDifference between virtualization and containerization
Data canters consist of a large number of enterprise servers. Not all servers are active at the same time. In case traffic is directed mostly to a particular set of servers more, those servers get busy. The other servers are less loaded, or they even turn totally inactive, thereby wasting power, maintenance costs, and other allied resources.With the changing times, businesses started looking for solutions to reduce overhead costs, enhance scalability, and standardize application deployment process. They started considering the following two approaches to reduce costs −Virtualization − Virtualization is the technology that can simulate your physical hardware (such as ...
Read MoreDifference between Cold Booting and Warm Booting
When a user presses the power button on their computer, it initiates the process known as "booting, " which loads and starts the operating system. Booting can also be thought of as a series of actions where the ROM of the computer is accessed in order to load the startup instructions. After that, the operating system is loaded from the disc that is now being used to boot the computer.A primary option for the boot disc is frequently the local hard drive. The process of booting the computer is finished when the operating system is loaded; at this point, the ...
Read MoreBest Command Line HTTP Client for Linux
In this tutorial, we will explore some of the most commonly used and famous HTTP clients that are present in Linux. A HTTP Client is a software that is mainly used to allow us to download files from the Internet. The primary reason for using HTTP clients is generally to download files, but these can also be used in case we want to debug or interact with a web server or multiple web servers.Now, let's consider the most famous HTTP Clients that are used.HTTPieWith the name that almost resembles of the famous web protocol (i.e., HTTP), HTTPie, is command line ...
Read MoreDifference between GNU and Unix
Even though the majority of us are accustomed to using Windows as our primary operating system, it is important for us to at least be familiar with other operating systems such as Unix, Linux, and others. This does not imply that Windows is the only operating system that has been used globally; rather, it indicates that other systems also take a larger proportion in terms of utilisation. The end functionality, which is using the computers to make our tasks easier, is the same regardless of the operating system that we might choose.Read through this article to find out more about ...
Read MoreHow to Find Out File Types in Linux
When it comes to Linux operating system, everything in general can be considered as a file. In UNIX, in total, there are seven standard file types −FIFO specialBlock specialCharacter specialSocketRegularDirectorySymbolic linkWhen it comes to Files, these can be mainly categorized into the following categories −Regular FilesDirectory FilesSpecial FilesThe simplest way to find out what a particular file is in an operating system is by looking at what kind of extension that particular file has. The extensions can be '.txt', '.py', '.go', etc. If a particular file does not have any extension in Linux, then we basically call that file as ...
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