Blog SERVER.UA

What happens to a VPS when it runs out of RAM

On January 21, 2026

A server rack with several servers, next to a yellow warning sign, and above them a resource fill indicator that changes from the green zone to red. — RAM shortage as a critical moment for stable server operation

Random access memory, or RAM, is the resource where a server stores data that programs need to operate “right now.” This includes website code, databases, cache, operating system processes, and system services. Unlike disk storage, RAM works very fast but has a limited capacity. On a VPS, the amount of RAM is fixed by the tariff plan, and the server cannot automatically use more memory than it has been allocated. As a result, the stability of a VPS directly depends on whether there is enough RAM to handle the current load.

What Happens When an SSL Private Key Is Leaked

By Микола

On January 21, 2026

In Security

A golden digital key with microchip elements is pointing towards a blue shield with a lock, against a background of clouds, binary code and technical security icons. — Private key as a critical element of protecting encrypted connections

When a user opens a website with a padlock in the browser, they rarely think about what actually stands behind this security symbol. An SSL certificate is a digital document that confirms the authenticity of a website and encrypts transmitted data. At the core of this system is the SSL private key. This is a secret file stored on the server and used to decrypt information encrypted with the public key. Simply put, the private key allows the server to “read” the data sent by the user’s browser. If this key falls into the hands of third parties, the security of the connection effectively ceases to exist.

Why Data Centers Are Always Noisy

By Микола

On January 20, 2026

In Colocation

A man stands between server racks in a data center, over which large ventilation systems and air conditioners operate, providing cooling for the equipment. — Noise as a side effect of continuous operation and cooling of server infrastructure

For most people, a data center is associated with something abstract: “servers are somewhere there, and they just work.” But those who have entered a real data center at least once almost always notice the same thing — a constant, steady, and fairly loud noise. It does not resemble the sound of an office air conditioner or a household fan. It is a background hum that does not disappear day or night and has very practical reasons.

How the Growth of Data Transfer Speeds Is Changing Modern Devices

By Микола

On January 16, 2026

In Uncategorized

Three cables with different connectors placed side by side: on the left is a connector with the inscription GPMI, in the center is USB-C, on the right is HDMI 2.2, which visually compares modern connection standards. — Changing interfaces as a reflection of the growing demands for speed and versatility of connections

Just a few decades ago, data transfer was a secondary characteristic of technology. Users were more concerned with whether a device could connect to a computer at all and whether files could be copied without errors. Today, the situation is completely different. Data transfer speed has become one of the key factors defining the capabilities of smartphones, laptops, televisions, and even everyday accessories. It affects how fast a device charges, what video quality it can play, and how comfortable it is to work with large volumes of information.

How to Read Website Errors in Simple Terms

By Микола

On January 15, 2026

In Uncategorized

Two people stand in front of a screen with the words Error 404 Page Not Found, next to which is a construction crane, warning signs, and error icons symbolizing a problem with accessing the website page. — Site errors as signals that help you understand what went wrong

While browsing websites, users often encounter messages like 404, 500, or 504. For most people, these numbers look like technical gibberish, even though they actually carry quite clear information. Website errors are the way a server tells the browser what exactly went wrong. If you learn how to interpret them correctly, it becomes clear whether the problem is on your side, whether you just need to wait, or whether the site is experiencing serious technical issues.

How Artificial Intelligence Is Gradually Replacing Familiar Software

By Микола

On January 14, 2026

In Uncategorized

An artificial intelligence robot works at a laptop, surrounded by icons of code, music, design, video, analytics, and copywriting, symbolizing various digital tasks. — Universalization of tools as a new stage in the development of digital services

Just a few years ago, the digital lives of most people consisted of dozens of separate applications. Asana or Monday were used for task planning, GitLab for working with code, Wix for building websites, Duolingo for online learning, and specialized support platforms for working with clients. Each program performed a narrow function, and this was considered a normal model of computer use. Today, this logic is gradually changing. Artificial intelligence is taking over more and more tasks that previously required separate programs, and it does so within a single universal environment.

When Saving on Servers Becomes a Strategic Mistake

By Микола

On January 14, 2026

In Servers

A man in business attire sits on the floor with a depressed look next to a server rack from which smoke is coming, a graph with falling indicators is shown on the wall behind him. — Consequences of technical decisions made with a focus only on short-term benefits

At the start of any project, the desire to save money seems logical. The business has not yet begun to generate stable income, the load is low, and the server appears to be just a technical background element that does not directly affect sales. That is why many companies choose the cheapest server solutions or minimal configurations “for now.” The problem is that a server is not a one-time purchase but the foundation of a digital business. Mistakes made at this stage rarely show up immediately, but they almost always become apparent when the project begins to grow.

Physical Artificial Intelligence as a New Stage of Technological Development

By Микола

On January 9, 2026

In Uncategorized

An autonomous taxi with a robot driver at the wheel is driving along a city road, with houses, pedestrians, and city infrastructure depicted nearby. — When digital systems begin to interact with the environment without human intervention

Until recently, artificial intelligence was perceived mainly as a software technology. It analyzed texts and images, helped with information search, or automated routine digital tasks. Today, however, AI is rapidly moving beyond screens and beginning to operate in the physical world. This shift became clearly visible after recent statements at technology exhibitions, where it was demonstrated that artificial intelligence is transitioning from a supporting tool to an active participant in real-world processes.

What Is an API and Why It Exists in Almost Every Service

By Микола

On January 8, 2026

In Servers

Illustration of a waiter with the inscription API taking an order from a user at a table and passing it to the kitchen with the inscription Server. — API as a universal way of interaction between different parts of a service

API stands for Application Programming Interface, which is a software interface for interaction between different systems. Simply put, an API is a set of clear rules that allow one program to communicate with another, send a request, and receive a response. End users usually do not see APIs and rarely think about their existence, yet they use them constantly. Logging in with Google, paying by card on a website, displaying the weather, exchange rates, or delivery status — all of this works thanks to APIs.

Programmers’ Day Becomes an Official Holiday in Ukraine

By Микола

On January 7, 2026

In Uncategorized

Programmer's workplace with computer, code on screen and digital infrastructure elements. — Official recognition of the professional day of software development specialists

On January 7, Ukraine celebrates Programmers’ Day at the state level for the first time. This is a new professional holiday that received official status at the end of last year and is dedicated to specialists in the field of information technology. Its introduction became a logical step given the role of the IT industry in the country’s modern life and its impact on the economy, security, and the development of digital services.