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Articles by Satish Kumar
Page 53 of 94
How to Install and Configure Multihomed ISC DHCP Server on Debian Linux?
The ISC DHCP server is a popular open-source software package that allows network administrators to dynamically allocate IP addresses and configure network settings to clients on a local area network (LAN). In some cases, it may be necessary to configure a server with multiple network interfaces, which is known as a multihomed server. This tutorial will guide you through the process of installing and configuring ISC DHCP server on a Debian Linux system with multiple network interfaces. Prerequisites Before you begin, you will need − A Debian Linux system with root access Two or more network ...
Read More4 Ways to Find Out What Ports Are Listening in Linux
Linux is a popular operating system widely used by system administrators, developers, and security professionals. One of the most important tasks in managing a Linux system is to identify which ports are listening and which processes are using them. This knowledge is crucial for system security, troubleshooting network issues, and service management. In this article, we will discuss several effective methods to find out what ports are listening in Linux. Using netstat Command The netstat command is a traditional network utility that provides detailed information about network connections, routing tables, and interface statistics. To check which ports are ...
Read More4 Ways to Generate a Strong Pre-Shared Key (PSK) in Linux
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 the network. In Linux, there are several ways to generate a strong PSK, and in this article, we will discuss four primary methods. Method 1: Random Character Generation One of the simplest ways to generate a strong PSK is to use a random combination of characters. This can be done using various Linux command-line utilities. Using OpenSSL The openssl ...
Read More5 Useful X-based (Gui Based) Linux Commands
Linux is a powerful operating system that offers both command-line and graphical interfaces for system management. While the command-line interface provides efficiency and flexibility, many users prefer GUI-based applications for their intuitive design and visual feedback. These X-based tools leverage the X Window System to provide rich graphical environments for various tasks including file management, system monitoring, and application development. What are X-based Linux Commands X-based Linux commands are graphical applications that run on top of the X Window System, providing point-and-click interfaces for system tasks. Unlike traditional command-line tools, these applications feature menus, buttons, and visual elements ...
Read More4 Ways to Speed Up SSH Connections in Linux
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 key ways to speed up SSH connections in Linux. Use Compression Compression reduces the size of data transmitted over the network, which can significantly improve SSH connection speed, especially over slow or high-latency networks. To enable compression, add the following line to your ...
Read More4 Ways to View Disks and Partitions in Linux
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, understanding how to view disk and partition information is essential for system maintenance and troubleshooting. Using fdisk Command The fdisk command is a powerful command-line utility that displays detailed partition table information. It shows disk geometry, partition types, and sector information for storage devices. To view all partitions on a specific disk, use the -l (list) option − sudo fdisk -l /dev/sda This ...
Read More5 Ways to Find a ‘Binary Command’ Description and Location on File System
Have you ever encountered a binary command and wondered where it's located on your file system? A binary command is a compiled program that you can run in your terminal. It's easy to get lost in the maze of directories on your computer, but fear not — we have compiled five ways to find a binary command's description and location on your file system. Use "which" Command The which command is a simple but effective way to locate a binary command's location. It tells you the full path of the command you are looking for. Simply open your ...
Read More4 Ways to Watch or Monitor Log Files in Real Time
Log files are a vital component of any computer system − they contain detailed records of activities and events that occur on a system. These files help you understand what happened in the past, but in certain scenarios, you might want to monitor them in real-time to stay ahead of issues and troubleshoot problems before they escalate. This article explores 4 primary ways to watch or monitor log files in real-time. Tail Command The tail command is a popular Unix/Linux utility used to display the last few lines of a file. It's particularly useful for monitoring log files ...
Read More5 Ways to Fix ifconfig Command not Found Error on Debian
If you are a Debian user, you might have encountered the "ifconfig command not found" error while trying to check your network interface configurations. This error occurs when the ifconfig command is not installed on your Debian system or the package containing it is not properly configured. The ifconfig command has been deprecated in favor of modern alternatives, but many users still rely on it. This article discusses several effective methods to resolve this error and restore network interface management capabilities. Method 1: Install Net-tools Package The most straightforward solution is to install the net-tools package, which contains ...
Read MoreHow to Install and Configure Nginx on CentOS 7?
Nginx is a popular web server that is known for its high performance, scalability, and low resource usage. It is commonly used as a reverse proxy, load balancer, and HTTP cache. In this article, we will discuss how to install and configure Nginx on CentOS 7. Step 1: Update System Before installing any packages, it's essential to update your system to the latest version. Run the following command − sudo yum update Step 2: Install Nginx Once the system is updated, we can proceed with the installation of Nginx. Install Nginx using the ...
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