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As an open-source operating system, Linux provides various tools and commands that allow users to manage their disk and partition configurations. Whether you're a system administrator or a casual user, you may need to view your disks and partitions at some point. In this article, we'll explore four ways to view disks and partitions in Linux, along with some examples. Using fdisk Command fdisk is a command-line tool that allows you to view and manage disk partitions on Linux systems. To view disk partitions, you need to run fdisk command with disk device name as an argument. The following command ... Read More
If you use Linux for remote access to other servers or devices, you are likely familiar with SSH (Secure Shell) protocol. SSH is a network protocol that enables secure data communication over an unsecured network. However, sometimes SSH connections can be slow, and that can be frustrating. In this article, we will look at four ways to speed up SSH connections in Linux. Use Compression Compression is a method of reducing size of data transmitted over network. It can significantly improve speed of SSH connections, especially over slow or high-latency networks. To enable compression, you need to add following line ... Read More
Pre-shared key (PSK) is a security mechanism used to protect network communication by ensuring that only authorized devices can access it. It is a shared secret key that must be kept confidential to prevent unauthorized access to network. In Linux, there are several ways to generate a strong PSK, and in this article, we will discuss four of them. Use Random Characters One of simplest ways to generate a strong PSK is to use a random combination of characters. This can be done using a Linux command-line utility called "openssl." To generate a PSK using openssl, open a terminal and ... Read More
Linux is a popular operating system that is widely used by system administrators, developers, and other tech enthusiasts. One of important tasks in managing a Linux system is to identify which ports are being used and which ones are available. In this article, we will discuss 4 ways to find out what ports are listening in Linux. Using netstat Command The netstat command is a powerful tool that provides detailed information about network connections, routing tables, and other related statistics. To check which ports are listening, you can use following command − $ netstat -ltn This command will display ... Read More
Overview to Java Optimization Java is a popular programming language for developing mobile apps to enterprise-level software systems. However, as the size and complexity of Java applications increase, so does the potential for performance issues. Java optimization identifies and addresses performance bottlenecks in Java applications to ensure they run efficiently and meet the desired performance requirements. In this article, we will explore the importance of Java optimization and provide an overview of key techniques and best practices for optimizing Java code. We will also discuss common performance issues, how to address them, and the tools and resources available to ... Read More
If you're using CentOS or RHEL (Red Hat Enterprise Linux), you might be wondering how to check what version you're running. Luckily, there are several easy ways to find out. In this article, we'll go over four methods you can use to check version of CentOS or RHEL that you're running. We'll also provide examples and step-by-step instructions for each method. Check /etc/redhat-release File The first method we'll cover is to check contents of /etc/redhat-release file. This file contains information about version of CentOS or RHEL that you're running, including release number and update level. To check contents of /etc/redhat-release ... Read More
Ubuntu is one of most popular and widely used Linux distributions. It is known for its simplicity, reliability, and performance. However, like any other operating system, Ubuntu is not immune to overheating issues. Overheating can lead to a number of problems, such as decreased performance, system crashes, and even hardware damage. Therefore, it is important to monitor temperature of your CPU and GPU regularly to prevent such issues from occurring. In this article, we will introduce you to 4 useful tools to monitor CPU and GPU temperature in Ubuntu. lm-sensors lm-sensors is a command-line tool that allows you to monitor ... Read More
PhpMyAdmin is a popular tool used by web developers to manage and administer MySQL databases. It provides a web interface to perform various tasks such as creating, modifying, and deleting databases, tables, and records. However, as with any web application, it is susceptible to security vulnerabilities if not properly secured. In this article, we'll discuss four useful tips to secure PhpMyAdmin login interface to protect your data from unauthorized access. Change Default Login Credentials The default username and password for PhpMyAdmin are "root" and "password, " respectively. This information is publicly available, and it makes it easy for hackers to ... Read More
As a Linux user, you will likely encounter situations where you need to create directories, compress files, or terminate processes. These tasks can be accomplished using three essential commands: mkdir, tar, and kill. In this article, we will discuss four useful tips that will help you master these commands and simplify your Linux experience. “mkdir” command The mkdir command is one of most commonly used commands in Linux. It allows users to create directories and subdirectories in Linux file system. In this article, we will discuss four useful tips on mkdir command in Linux. Creating Multiple Directories at Once The ... Read More
When we talk about physical quantities, it is essential to understand the difference between magnitude and intensity. In simple terms, magnitude refers to the size or quantity of something, whereas intensity is a measure of how strong or powerful it is. In this essay, we will explore the key differences between magnitude and intensity and their applications in different fields of science and engineering. What is Magnitude? Magnitude refers to the size or quantity of something. It is a scalar quantity that can be measured or expressed in terms of a numerical value. For example, the magnitude of a vector ... Read More