
Ashley B.
Content Writer (Hi! I’m Ashley, a Linux Administrator with a passion for making Linux simpler and more accessible for beginners. Since 2021, I’ve been writing friendly, practical guides at OperaVPS to help users install software, use the command line, and get comfortable with their VPS. Linux doesn’t have to be intimidating. and I’m here to show that anyone can learn it with the right support and a little curiosity.

Remote Host Identification Has Changed in Windows & Linux
If you prefer to have remote access to a computer without using GUI, you certainly work with SSH. Users and developers use the SSH as a shell-based remote access protocol to connect to another machine. Remote Host Identification Has Changed is one of the potential errors that safeguards the connection of users against specific harmful […]

5 Quick Methods to Rename a Directory in Linux
One of the simplest and most fundamental tasks for Linux administrators is interacting and working with files and directories, which are a crucial part of the file system. For Organizing files, correcting typographical errors in file names, preserving privacy, complying with standards for collaboration, maintaining consistency in file structures, and other reasons, renaming directories in […]

Simple Way to Secure Nginx on CentOS with Let’s Encrypt SSL
As a website administrator, you are cognizant of the significance of ensuring security and implementing encrypted HTTPS on your web server. This has a direct impact on the ranking of your website in search engines following the implementation of SSL. Installing and obtaining a certificate is fully automated on the Nginx server. Secure Nginx on […]

How to Setup FirewallD in CentOS
You would use the most secure locks for your properties and complicated passwords on your accounts. Taking the same protective precautions in the digital communication world makes sense. Setup FirewallD in CentOS is one of these measures to safeguard your location, financial information, and other assets. Just Like many other Linux distributions such as RHEL, […]

How can I Install 7Zip in Ubuntu, Debian, Centos & Fedora
As a Linux user, you might face issues in sending large files or compressing/decompressing them. While 7Zip is used from a Windows GUI, Linux users can also benefit from this cross-platform file archiver. 7Zip is a free and open-source compression program that is available on Linux with a powerful command line version. Install 7Zip in […]

Basic Guide to Input Output (I/O) Redirection in Linux
Linux was developed with the aim of providing powerful and modern command-line tools to optimize user workflows and respond to user needs. For this reason, it offers valuable features that I/O Redirection is one of the most powerful features of the Linux command line to increase users’ productivity in software development and other purposes.

How to Solve “Read-Only File System” Error in Ubuntu?
Restart your system. Check Disk and File System Errors Check and edit /etc/fstab file Remount the FileSystem in read-write mode Check Disk Space Check for Disk and hardware failures Solve the Linux-windows dual boot issue Check the file system type Check permissions and ownership Update your system Sometimes, mounting the file system in Read-Only mode […]

How to Install GUFW in Ubuntu
Firewalls are a security tool to protect your Linux system from unauthorized access, intruders, and hacker attacks that allow users to control and manage incoming and outgoing traffic from your device to the network. By default, Linux allows users to benefit from the features of firewalls by equipping their distributions with the best Linux firewalls, […]

How to Install R Programming Language in Ubuntu
The use of computers for computations and data analysis is inevitable. Numerous programming languages have been developed today to enhance computational efficiency and are continuously updated and improved to meet the evolving needs of users. Among a wide variety of programming languages, R and Python programming languages are very popular.

Solve Temporary Failure in Name Resolution Error in Linux
Today, connecting to the Internet is necessary for various purposes because if you do not succeed in connecting to the Internet, many of your tasks will be challenged. You may get the ‘temporary failure in name resolution’ error when updating the Linux system, pinging and connecting to the website, or other essential tasks that require […]

How to Solve SSH Broken Pipe Error in Linux
Nowadays, connecting to a remote server and doing various tasks is common. SSH is one of the best protocols that is used to have a remote connection. In spite of SSH benefits, an error might occur and end the connection. In this article, you will learn How to Solve SSH Broken Pipe Error in Linux. […]

Edit Hosts File on Windows Mac and Linux Ubuntu
Edit Hosts File allows local mapping of domain names to IP addresses, bypassing DNS. This guide covers Windows, Mac, and Linux Ubuntu for efficient hosts file editing with administrator rights. 🤖AI Overview: Edit Hosts File is the modification of a local plain-text file that maps domain names to IP addresses, bypassing DNS servers. This file […]