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L2TP/IPsec is a built-in VPN protocol on many operating systems and an efficient way to transmit Internet traffic through a VPN tunnel. L2TP, built into many operating systems, creates a secure tunnel for your internet traffic, but it relies on IPsec for encryption. Setup L2TP VPN Server on your operating system offers a good balance […]

In this post, we will be with you to see how we can setup Virtual Host On CentOS 7; Virtual Host is a common term in Apache; You have several websites that you want to activate on one server, and in addition to saving on server purchases per site, save time and not have to […]

Setup proxy on ubuntu is an intermediate for connecting to internet and provides privacy, anonymous browsing and network security. Also you can access restricted content and bypass geographically restrictions. To setup proxy settings in ubuntu by GUI, you can open ubuntu settings and enter proxy information. Also you can set proxy in linux ubuntu permanently […]

After purchasing the Linux VPS service, you may want to test disk speed in Linux differently distributions. There are different types of disks such as hard disk, SSD, SSD NVMA, M2, and SES. Each of the mentioned disks has different technologies and naturally different speeds. In OperaVPS, we use SSD storage on our servers to […]

sudo command not found error means sudo package is not installed or PATH variable does not include sudo’s directory. To fix this bash error, you can install sudo in linux using apt install sudo command (apt package manager for Debian-based distributions).

Sometimes we need to get the server’s hardware details like RAM, CPU, Motherboard, and Graphic card and find out how they operate. Or maybe we need to stress the CPU or Storage system to find out its power. To do this in Windows without any software, unfortunately, you are limited. So in this tutorial, we […]

Linux Server administrators To fix server security issues and keep data safe, need to know which TCP and UDP ports are open in Linux os and distributions like Centos,Ubuntu,RHEL,Debian with use this commands (ss-lsof-netstat-nmap-netcat).

In the digital developing world, data security comes first. Sensitive data must be encoded into encrypted to be protected. Encrypt disk in Ubuntu ensures that important data will be saved if the storage fails or is stolen.

ps Command in Linux lists running processes with details like Process ID, CPU usage, and command name. It works by reading data from the /proc directory and supports various options to filter or format process information for monitoring and management. 🤖AI Overview: ps Command in Linux is a built-in tool used to display information about […]

File systems play a crucial role in organizing, storing, and retrieving data on storage devices, and the failure of file systems can have irreparable consequences. As a Linux system administrator, you should prioritize the maintenance and health of the storage system and enhance your knowledge in this area. The powerful command-line tool fsck (file system […]

The Access Denied errors usually occur when the server believes you are not permitted to take your considered action. One of these situations is when logging in to the MySQL server. In this article, you will learn How to fix MySQL Error 1045 and be able to access your database files. Not having the correct […]

LVM in Linux allows flexible storage management by creating and resizing logical volumes across physical disks. It optimizes disk usage and simplifies volume control. 🤖AI Overview: LVM in Linux, or Logical Volume Manager, provides advanced storage abstraction by grouping physical disks into logical volumes. It supports resizing, snapshots, mirroring, and striping to enhance disk management […]