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The default SSH Port number is 22. SSH is used to enable secure communication between devices over the Internet. A port is required to connect and start all communications between two devices over the network using SSH. To enhance security, the default SSH Port can be changed. Why the SSH Default Port is 22? Before […]

A ddos attack is when multiple systems flood a network or server with traffic causing services to slow down or stop. It can disrupt business operations and requires security measures to prevent.

IPsec VPN Protocol encrypts and authenticates data between two points over IP networks, securing internet communications through key exchange, authentication, and encryption processes. As a Network Administrator at OperaVPS, I often receive questions about network security and the importance of VPN protocols. In this article, I will explain the fundamentals of the IPsec VPN Protocol, […]

Server Antivirus Software is a program designed to detect and remove malware from your server. It protects server data by scanning files and monitoring for security threats. Beginners can use it to keep server environments safe.

What is RAID? RAID stands for Redundant Array of Independent Disks. It is a technology that combines multiple hard drives to improve data reliability or performance. RAID is used in servers and storage systems.

Differences Between IPv4 & IPv6 refer to how each internet protocol manages address spaces. IPv4 uses 32-bit addresses and IPv6 uses 128-bit addresses, allowing more devices online.

SELinux is a security system in Linux that controls access to resources. It helps protect your server by setting strict rules for programs and users. Beginners should learn SELinux basics for safer Linux use.

What is proxy server? A proxy server acts as an intermediary between your device and the internet. It helps control access, improve security, and manage network traffic.

Today, with the help of new technologies, it is possible to do professional work remotely. Maybe ten years ago, telecommuting was a dream for many people, but today telecommuting is one of the most common and necessary solutions for the survival of many businesses.

Virtualization is a new solution in computer science and networking that will reduce cost and increase efficiency. Virtualization creates a software layer between computer hardware and software systems, with computer hardware forming the basis for virtual environments. Virtualization systems manage and allocate physical resources such as CPU, memory, and storage to virtual machines, optimizing resource […]

Database Management Systems are software that organize, store, and protect data. They allow users and applications to access and update information securely and efficiently.

Nodejs is a server-side environment that runs JavaScript outside the browser for building scalable web applications. It uses a non-blocking event-driven model for efficient performance.