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2025-08-21
What is Tailscale? Tailscale is a VPN service that positions itself as a Zero-config VPN. It uses the WireGuard protocol to create a secure mesh network between all your devices. The key difference from other solutions …
Read more2025-08-20
Evolution of Remote Access Traditional VPN services, which most of us are familiar with, work on the “hub-and-spoke” principle (star topology). This means that all traffic from the client to the protected …
Read more2025-08-18
Keenetic as a VPN Client: Network-Wide Protection Why Use a Router-Level VPN Client? Setting up a VPN client on every individual device can be tedious. Moreover, many devices (Smart TVs, gaming consoles, IoT gadgets) …
Read more2025-08-15
Introduction: From Reactive Defense to Proactive Security In 2025, attacks on servers are becoming increasingly sophisticated, and reactive measures (firewall, Fail2Ban, CrowdSec) are no longer enough. The modern …
Read more2025-08-14
Introduction: The First Line of Defense for Your Server Before thinking about complex intrusion detection systems such as Fail2ban or CrowdSec, you need to build the first and most reliable line of defense—a firewall. A …
Read more2025-08-13
Introduction: From Local Defense to Global Protection In the previous article, we explored Fail2ban — a reliable and time-tested tool for defending against brute-force attacks. However, Fail2ban only works with local …
Read more2025-08-12
Introduction: Server Security — The First Line of Defense Once you deploy any server or virtual machine, one of the first and most important tasks is ensuring its security. Even if your server doesn’t contain critical …
Read more2025-08-10
What is Xen? Xen is a powerful and flexible Type 1 open-source hypervisor that runs directly on server hardware, delivering high performance. Its unique architecture, based on the concept of paravirtualization, became …
Read more2025-07-19
We’ve explored the ELK Stack, its power — and, unfortunately, its licensing changes. These changes sparked debate within the open-source community and led to the creation of a worthy alternative — OpenSearch. OpenSearch …
Read more2025-07-17
Why Do We Need Centralized Logging? Making Sense of Log Chaos We’ve already discussed the importance of metrics monitoring for understanding the health of your IT infrastructure. But metrics are only part of the picture. …
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