Author: Rahul

Squid is a popular open-source proxy server that can be used to enhance the security and performance of your Debian server. Once you have installed Squid, you need to configure it to suit your specific needs. In this tutorial, we will provide a comprehensive guide to configuring Squid proxy on Debian. Step 1: Configuring Access Control Access control is an essential part of any proxy server configuration. Squid provides several access control features that allow you to control which clients can access the proxy server. You can use the acl (access control list) and http_access options to define rules for…

Linux provides various commands to perform different types of system shutdowns. However, the terms used to refer to these shutdown types can be confusing, especially for new Linux users. In this article, we’ll discuss the differences between shutting down, restarting, and halting Linux, and when to use each of these commands. Shutting Down Linux When you shut down Linux, you are essentially turning off the system. The shutdown process saves any open files, terminates running processes, and safely powers off the hardware. When you shut down Linux, you need to make sure that you save all your work, as any…

Android is one of the most popular mobile operating systems in the world, powering millions of devices across the globe. If you’re a developer looking to land a job in the Android development space, you’ll likely be asked a variety of questions related to the platform during your interview. In this article, we’ll go over 20 common Android interview questions and their corresponding answers to help you prepare for your next interview. What is Android? Android is an open-source mobile operating system developed by Google. It is based on the Linux kernel and designed primarily for touchscreen mobile devices such…

As computers age, their performance inevitably degrades, and the operating system becomes less responsive. This can be frustrating for users who want to continue using their old hardware but are limited by the resources available. Fortunately, Linux offers a variety of lightweight distros that are optimized for older computers, allowing them to run more smoothly and efficiently. In this article, we will review the 10 best lightweight Linux distros for old computers, along with their pros and cons. 1. Puppy Linux Puppy Linux is one of the smallest and lightest Linux distros available. It can run entirely from a USB…

DevOps has become an essential practice for software development and deployment in modern businesses. DevOps emphasizes collaboration, communication, and continuous improvement across development and operations teams to deliver software changes quickly and reliably. In this article, we have discussed 20 common DevOps interview questions and answers to help you prepare for your next interview. You should also read: 20 Common Job Interview Questions And Answers 20 Common Linux Interview Questions and Answers What is DevOps and how does it differ from traditional software development? Answer: DevOps is a culture and set of practices that emphasizes collaboration and communication between development…

QA (Quality Assurance) is a critical function in the software development process that ensures that products and services meet the highest standards of quality. As such, QA professionals play a vital role in software development organizations. Aspiring QA professionals must prepare themselves for the interview process to increase their chances of securing a job. In this article, we will discuss 20 common QA interview questions and the best answers to help you prepare for your next interview. You should also read: 20 Common Job Interview Questions And Answers What is your understanding of Quality Assurance? Answer: Quality Assurance is the…

In programming, modulus or remainder is the operation that returns the remainder of a division. In Bash, the modulus operator is represented by the % symbol. The modulus operator is commonly used in programming to check if a number is divisible by another number or to perform operations that require a cyclic pattern. In this article, we will explore how to use the modulus operator in Bash. Syntax: The syntax of the modulus operator in Bash is as follows:

Where num1 and num2 are the two numbers being operated on. The % symbol represents the modulus operator. Example 1:…

In programming, finding the remainder of a division is a common task. In Bash, the modulus operator “%” can be used to calculate the remainder of a division. However, the output of the modulus operator can be negative when dealing with negative numbers. Therefore, it is important to understand how to handle negative numbers when calculating the remainder in Bash. In this article, we will discuss how to calculate the remainder of a division in Bash and how to handle negative numbers. Method 1: Using the Modulus Operator (%) The Modulus operator, represented by the symbol %, is a binary…

Bash is a powerful command-line interface and scripting language that offers a wide range of mathematical operations, including division and remainder. Division and remainder are fundamental operations used in various programming and mathematical applications. This article will discuss how to perform division and remainder operations in Bash and their usage. Calculate Division in Bash The division is a mathematical operation that involves dividing one number by another. In Bash, division can be performed using the / operator. Here is an example:

In the above example, we used the $(( )) syntax to perform an integer division of 10 by…

Linux is one of the most popular operating systems in the world, and it is widely used in a variety of applications, from web servers to mobile devices. As a result, there is a high demand for developers and system administrators with expertise in Linux. Whether you are a seasoned Linux professional or a beginner, it is important to have a solid understanding of the common Linux interview questions and their corresponding answers. In this article, we will provide a list of 20 common Linux interview questions and their answers to help you prepare for your next interview. Linux Interview…