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Introduction to iptables Iptables is a Linux-based firewall application that controls incoming and outgoing traffic. It is a powerful tool that can be used to secure a server, limit access to specific applications or services, and mitigate risk of malicious attacks. This article will provide an introduction to iptables, its purpose, and its basic usage. What is iptables? Iptables is a firewall application that works with Linux kernel. It controls incoming and outgoing traffic and provides a mechanism to filter, block, or allow traffic based on various criteria, such as port number, IP address, protocol, and more. Iptables is designed ... Read More
As a Linux user, you might have come across a situation where you ran out of disk space, but you are not sure where all space has gone. It can be frustrating, but fortunately, there are several tools and techniques you can use to track down where disk space has gone on Linux. In this article, we will cover following sub-headings to help you identify where your disk space has gone − Check Disk Usage The first thing to do is to check disk usage of your system. Linux has several command-line tools that can help you do that. most ... Read More
Linux is a popular operating system that is widely used for its open-source nature and flexibility. Linux command line interface (CLI) is a powerful tool that allows users to control and manipulate their system. One of most commonly used commands in Linux CLI is "opt." In this article, we will explore what opt means in Linux, and how it can be used to optimize your system. What is opt in Linux? The opt command is a command-line option that is used to modify behavior of a command or utility. It is used to specify optional arguments that may or may ... Read More
Introduction If you are familiar with command line interface, you have probably encountered a double-dash (--) in some of commands you use. This article seeks to explain what double-dash means and how it affects behavior of shell commands. What is a Double-Dash in Shell Commands? A double-dash is a syntax used in shell commands to signify end of command options and beginning of positional arguments. In other words, it separates command options from arguments that command operates on. Many shell commands allow you to specify options or flags that modify behavior of command. For example, ls command allows you to ... Read More
Data-driven marketing is the notion of harnessing user data for optimum and targeted media buys and new communications. It is one of the most seismic shocks in the history of digital advertising. Though information business was historically uncommon, the proliferation of specialized media outlets and changing customer expectations have made data analysis a crucial element in current marketing operations. Companies may fine-tune their efforts based on some of these insights to achieve the finest customer experiences and the most value on advertising costs. Benefits of Data-Driven Marketing In the programmatic buying industry, data-driven marketing is most likely one of the ... Read More
Introduction In Linux, files are often used to store data that is either created by a program or generated by user. It is common for users to append new lines of data to existing files rather than creating new ones from scratch. This article will explain how to append lines to a file in Linux, including several subheadings and examples. Using echo command The easiest way to append new lines to a file is by using echo command. echo command allows you to display a message on screen, but it can also redirect message to a file. Here's how to ... Read More
Introduction When it comes to managing files and directories in any operating system, being able to list all files in a directory is an essential task. However, it becomes a bit more complicated when you need to recursively list all files in a directory, including symlinks. This is particularly important for developers and system administrators who work with large, complex file systems. In this article, we will cover how to recursively list all files in a directory, including symlinks, with examples and subheadings. What is a symlink? A symlink, also known as a symbolic link or soft link, is a ... Read More
MBA is a dream for people to attain their goals. Before that, your resume build-up should be a dream to get a job. The selection committee will often view your MBA Resume as the first part of your submission when considering your application for their MBA program. Your MBA CV contextualizes your actual accomplishments and acts as a cohesive string in the weaving that is an MBA program. Importance of MBA Resume The very first question you may have been whether a document for an MBA program is comparable to a resume for a hiring process. The simple answer is ... Read More
Linux is a powerful operating system that offers a wide range of command-line tools for executing various tasks. One of tasks that often need to be performed is repeating a command at a given interval. This feature can be useful for several reasons, such as monitoring system performance, running scheduled tasks, and performing backups. In this article, we will explore how to repeat a Linux command at a given interval. We will discuss various ways to achieve this, including using cron utility, watch command, and sleep command. Using Cron to Repeat a Command The cron utility is a time-based job ... Read More
We've compiled a selection of the top management books that will assist you to get started. From corporate giants to foreign diplomats, this list has all of the information you'll need to qualify for executive positions. Top Leadership Books to Read Leader Shift Maxwell, a philanthropist in the subject of management, has produced one fresh and one brand new work on management this year: more all edition, Leadershift, and a completely updated "2.0" edition of his masterpiece Building the Ruler Inside You. Leadershift, Maxwell's entirely new novel, is concerned with how managers can organize themselves to enact how much he ... Read More