Knowledge Base
427 articles and guides on knowledge base from the NexonHost team — page 7 of 18.
How to use rmmod command.
How To Use Rmmod Command. In this article, we’ll talk about how to use the rmmod command to remove modules from the Linux Kernel. The core component of each Linux operating system is the Linux kernel. It manages the system’s resources, and acts as an intermediary between the computer’s hardware…
Read article →How to use who command.
How To Use Who Command. In this article, we explain the who command that is bundled in GNU coreutils package. who is a command-line utility that prints a list of currently logged in users. It can also show the current run level, time of the last system boot, and more. How to Use the…
Read article →How to use basename command.
How To Use Basename Command. basename is a command-line utility that strips directory and trailing suffix from given file names. Using the basename Command The basename command supports two syntax formats: basename NAME [SUFFIX] basename OPTION… NAME… basename takes a filename and prints the last…
Read article →How to use chattr command in Linux.
How To Use Chattr Command In Linux. This article explains how to use the chattr command to change file attributes on Linux file systems. In Linux, file attributes are meta-data properties that describe the file’s behavior. For example, an attribute can indicate whether a file is compressed or…
Read article →How to Install Python 3.9 on Debian 10
How To Install Python 3.9 On Debian 10 In this article, we’ll show you how to install Python 3.9 on Debian 10. Python 3.9 is the latest major release of the Python language. It includes many new features such as new dict operators, new str functions, support for IANA time zone, and more .…
Read article →How to Install and Configure an NFS Server on Ubuntu 20.04
How To Install And Configure An NFS Server On Ubuntu 20 This article explains how to set up an NFSv4 Server on Ubuntu 20.04. We’ll also show you how to mount an NFS file system on the client machine. By default, the NFS protocol is not encrypted and does not provide user authentication. Access to…
Read article →What is error 400?
What is 400 error code? The HTTP 400 status code, also known as “400 Bad Request,” is a client-side error response code that indicates the server cannot process the request due to a problem with the request itself. “400 Bad Request” is a general error that indicates that your browser sends a…
Read article →What is 401 error code?
What is 401 error code? The 401 Error, also known as the 401 Unauthorised Error, is one of the most common error codes. This error indicates that the request to the website or web application was unable to be authenticated. Fortunately, in most cases, this error is easily corrected. The 401 Error…
Read article →What Is 403 Forbidden Error?
What Is 403 Forbidden Error? In this article, we will explain what a 403 forbidden error is, as well as we will let you know 3 methods to fix it. What Is a 403 Forbidden Error? The 403 Forbidden Error is an HTTP status code that pops up when you try to go to a…
Read article →What is Error 502 Bad Gateway ?
What is Error 502 Bad Gateway ? Most of the time while working on your website you used to receive a common error i.e. Error 502 Bad gateway, But you don’t know about it, This blog post will help you with how to fix it and what is it, and how to prevent from such…
Read article →What is a 500 Internal Server Error?
What is a 500 Internal Server Error? This article explains what a 500 error means, why you’re getting an HTTP 500 code, and how to troubleshoot these errors. One of the most common errors that occur when browsing the web is the “500 Internal Server Error”. This message indicates that the webserver…
Read article →What is 404 error?
What is 404 error? The error 404 not found is the HTTP status code that you encounter when the browser is unable to locate the requested file. This indicates that the designated browser somehow communicated with the requested server, but the provided server is not able to supply the requested file.
Read article →What is a 503 Service Unavailable Error?
What is a 503 Service Unavailable Error? This article explains what a 503 error means, why you’re getting an HTTP 503 code, and how to troubleshoot these errors. What is an HTTP 503 Error? When you open a web page, your browser sends a request to the server hosting the site, which returns the…
Read article →What is localhost?
What is localhost? Computer machines are identified by their hostname [name of the host machine] and IP address. The below diagram briefly illustrates it. Likewise, we also have a common name for all the computer systems that used to call itself is known as localhost. Here, the term “localhost” is…
Read article →How to create a bash shell script to find if a number is perfect or not.
How to create a bash shell script to find if a number is perfect or not. In this article, we will discuss how to write a bash script to find if a number is perfect or not. A perfect number is defined as, a positive number that is equal to the sum of its proper…
Read article →How to understand difference between Bash scripting an Shell scripting.
How to understand difference between Bash scripting an Shell scripting. Bash script: A Bash Script is just like a simple text file, consisting of a number of commands that we usually write in a command line. In Linux file systems, they are used for doing repetitive tasks. A Bash Script may contain…
Read article →How to understand File Permissions in Bash Scripting.
How to understand File Permissions in Bash Scripting. In Bash scripting, file permissions refer to the access rights and restrictions that are assigned to files and directories. These permissions determine who can read, write, or execute a file or directory. Bash scripts often interact with files…
Read article →How to use traceroute command.
What is traceroute command? The traceroute command in Linux is a network diagnostic tool used to track the route and measure the round-trip time (RTT) of packets between your computer and a destination IP address or hostname. It helps in identifying the path that network packets take to reach a…
Read article →How to use sysdig command.
What is sisdig? sysdig is a powerful open-source command-line tool used for system exploration, troubleshooting, and monitoring. It provides deep visibility into the activities and behavior of a Linux-based operating system, allowing users to capture, analyze, and understand system-level…
Read article →How to use info command.
What is info command? In Linux, the "info" command typically refers to the Info documentation system. Info is a specialized format for documentation that is commonly used for GNU software and other projects. It provides a hierarchical and interactive documentation viewer that allows you to…
Read article →How to use IPCS command.
What is ipcs command? ipcs shows information on the inter-process communication facilities for which the calling process has read access. By default, it shows information about all three resources: shared memory segments, message queues, and semaphore arrays. Without options, the information shall…
Read article →How to use talk command.
What is talk command? The talk command in Linux is a utility that allows two users to have a real-time text-based conversation over a network. It provides a simple and interactive way to communicate with another user who is logged into the same system or a remote system. talk is a command-line…
Read article →How to transfer file between servers with scp command.
What is scp command? The scp command stands for “secure copy” and is a command-line tool used to securely transfer files between local and remote systems over a secure SSH (Secure Shell) connection. Here are some key points about the scp command: scp is primarily used in Unix-like operating…
Read article →How to use netstat command.
What is netstat command? netstat (network statistics) is a command-line utility used to display various network-related information on a computer. It provides information about active network connections, listening ports, routing tables, interface statistics, masquerade connections, and more. The…
Read article →