Blog SERVER.UA

How to Set Up Server Overload Alerts

On October 17, 2025

The administrator in front of the computer receives a warning about server overload, with alarm icons and servers in the background. — Server overload notification system

A server is the heart of any online project. The stability of your website, store, or application depends on how reliably it runs. However, even the most powerful machines can experience overload when resources run out and the system’s capacity is exceeded. At such moments, it’s crucial that you learn about the issue not from customers but from your monitoring system — instantly, as soon as the situation goes beyond normal limits. That’s why setting up server overload alerts is one of the key elements of effective administration.

How to Check if Your SSL Certificate Is Genuine

By Микола

On October 16, 2025

In Security

A document with an SSL mark and a large red FAKE seal, with flashing warning lights next to it. — Fake SSL is a threat to site security and user trust

An SSL certificate is more than just a file with keys — it’s proof of your reputation as a website owner. It confirms that you control your domain and ensures that all data exchanged between the user and your server is securely encrypted. However, even if the certificate is installed and the connection shows the “lock” icon, that doesn’t automatically mean everything is safe. Attackers can create fake certificates, replace them during the connection process, or even use stolen keys. In such cases, visitors may see a “secure” site that actually runs on someone else’s server. That’s why it’s essential to know how to verify the authenticity and integrity of your own SSL certificate.

Why Having an SSL Certificate Is Important Even for Small Websites Without Payments

By Микола

On October 15, 2025

In Security

A green shield with a lock and the SSL inscription protects various types of websites – a store, a news portal, a blog, and a portfolio. — An SSL certificate is a sign of security, trust, and a professional approach to a website.

Many owners of small websites — blogs, portfolios, corporate pages, or informational resources — still believe that an SSL certificate is necessary only for sites that process online payments or collect users’ confidential data. However, this is a common misconception. Today, encrypted connections are not just a technical feature of large platforms but a universal standard that determines trust, security, and even visibility in search engines. Ignoring this factor means risking your reputation, even if your site seems “simple.”

How to Properly Test a VPS After Purchase

By Микола

On October 15, 2025

In Servers

A team of specialists in white coats checks the operation of the VPS server, recording the results on a tablet and laptop. — VPS testing helps evaluate the stability, speed, and security of the server before full use

Buying a VPS is not the end — it’s just the beginning of your work with the server. Just like after buying a car, you shouldn’t just hit the gas but make sure everything runs smoothly. A Virtual Private Server (VPS) is an environment where you get dedicated resources — CPU, RAM, disk space, and network connectivity. However, the stability and performance of your website or application depend on how well these resources are allocated and configured. That’s why the first thing to do after activating your VPS is to test it thoroughly to ensure everything meets your expectations.

China Shows What the Data Centers of the Future Will Look Like

By Микола

On October 14, 2025

In Colocation

An underwater server room with a view of the ocean through a porthole where fish swim. — Underwater data centers are a new step in the development of energy-efficient data storage technologies

Imagine a data center not standing in an industrial zone or in the middle of a field under power lines, but resting deep beneath the ocean, cooled naturally by its currents. It sounds like something out of a sci-fi movie, yet in China this vision has already become reality. The country has launched the world’s first commercial underwater data center — a project that could redefine how we imagine the infrastructure of the digital future.

Why It’s Better to Host Your Server in a Data Center

By Микола

On October 10, 2025

In Colocation

Comparison of a home server in the basement and professional equipment in a modern data center. — Advantages of colocation — stability, security, and professional server maintenance

In today’s world, where data processing speed and uninterrupted service availability define business success, the question of where to place your servers has become strategically important. On one hand, it might seem convenient to have your own server “at hand” — in your office or even at home. On the other, professional data centers offer a level of stability, security, and efficiency that’s hard to achieve on your own. That’s why more and more companies and independent developers are choosing colocation — hosting their own equipment in specialized data centers.

The History of the First Data Center in the World

By Микола

On October 9, 2025

In Servers

An old data center with people working at computers and configuring computing equipment. — The beginning of computing: the story of the creation of the first data center

In the history of technology, the creation of data centers was a revolutionary step that changed the approach to data storage and processing on a global level. The first computer networks had significant limitations, which over time became obvious. Initially, companies used individual servers that required substantial resources to maintain, and with the development of networks and the growing need for data storage, the necessity arose to create large, specialized centers for data processing.

What Would Happen If SSL Certificates Ceased to Exist

By Микола

On October 8, 2025

In Security

A worried man behind a laptop with a crossed-out lock surrounded by symbols of viruses, phishing and danger. — A world without SSL — loss of trust, security, and data protection

Imagine the internet without the little padlock in your browser’s address bar. No green “https://”, no guarantee that the data you enter — from your login to your credit card number — is safe from prying eyes. That’s what the world would look like without SSL certificates. And although today they seem invisible, these digital keys are what keep the modern web afloat.

SSL (Secure Sockets Layer) is an encryption technology that ensures secure data exchange between a user and a website. When you visit a page with HTTPS, your browser and the server “agree” on a unique key used to encrypt every byte of transmitted information. Without this mechanism, anyone positioned between you and the site could intercept your data — passwords, messages, files, or payment details. Today, dozens of organizations issue SSL certificates — from Let’s Encrypt to global certification authorities — all serving one purpose: to build trust between people and servers.

How Data Center Energy Consumption Affects Hosting Costs

By Микола

On October 8, 2025

In Servers

Servers in a data center next to coins, growth graph and energy symbol. — The impact of data center energy consumption on hosting costs

Energy is the invisible “fuel” of the modern internet. Everything we see online — websites, online stores, streaming services, or cloud storage — runs thanks to data centers that continuously power hundreds of thousands of servers. But behind stability, speed, and reliability lies a very real number measured in kilowatt-hours, and it directly determines the cost of your hosting.

Fire in a South Korean Data Center Reminds the World About the Importance of Data Backup

By Микола

On October 7, 2025

In Security

Servers on fire next to a laptop connected to an external drive with a mark of successful data recovery. — The importance of external server backup

September 2025 became a painful lesson for the entire IT industry. In South Korea, a fire at the headquarters of the National Information Resources Service destroyed the government cloud storage system that had been used for seven years by hundreds of public institutions. As a result, more than 120,000 civil servants lost their work files, and the total amount of destroyed data reached a staggering 858 terabytes. This was not just a technical disaster — it was a vivid demonstration of how dangerous it can be to store everything in one place, even if that place is a “government cloud.”