July 17, 2025
In the world of networking, there’s often a need to bridge two remote LANs so they behave like a single local network—even when separated by different routers. For MikroTik users, the concept of EoIP (Ethernet over IP) is familiar: it’s a proprietary tunneling protocol that allows creation of a virtual Ethernet interface (Layer 2) over an IP network.
Good news for Keenetic users: since firmware NDMS v2.10, Keenetic routers also support EoIP! This opens up exciting possibilities for advanced network designs.
July 15, 2025
In the world of Linux and networking technologies, there are many subtle but critically important kernel settings. One such setting is rp_filter. This parameter, often overlooked, plays a key role in network security and correct packet routing. Let’s explore what it is, how it works, and why understanding it is essential for every system administrator.
What is rp_filter?
rp_filter stands for Reverse Path Filtering. It’s a Linux kernel mechanism that checks incoming network packets to verify whether they arrived on the interface through which a reply to the sender’s IP address would be routed.
July 11, 2025
Introduction: UniFi – An Ecosystem for Modern Networks
In the world of business networking, many solutions exist—but few offer the same level of integration, management simplicity, and aesthetics as the UniFi product line from American company Ubiquiti Networks. Unlike the more “bare-bones” approach of Mikrotik, UniFi is designed for building a unified, centrally managed ecosystem. This makes it especially appealing to small and medium-sized businesses that value not just performance, but also ease of deployment, monitoring, and scalability.
July 10, 2025
Introduction: Mikrotik – More Than Just a Router
When it comes to networking hardware for home or small offices, most people think of consumer-grade routers like those from TP-Link, ASUS, or D-Link. However, there’s a category of devices offering far more flexibility, features, and control—while remaining affordable. We’re talking about Mikrotik, a Latvian company known for its wide range of networking gear, especially routers and switches.
What truly sets Mikrotik apart isn’t just the hardware, but its operating system — RouterOS. This powerful software transforms ordinary devices into versatile tools capable of handling tasks usually reserved for far more expensive enterprise solutions.
June 25, 2025
VPNCloud: Building Your Private Network in the Cloud
In a world where more and more services are moving to the cloud and remote work has become the norm, secure and private access to your resources is more important than ever. Traditional VPN services, while solving some problems, are often centralized and may not be the most flexible solution for creating your own secure network between multiple servers, devices, or even offices.
June 19, 2025
In today’s internet-driven world, where data constantly travels between millions of devices, it’s often not enough to establish a direct connection — you may need a “middleman.” That’s where a proxy server comes in. It acts as a bridge between you (the client) and the destination resource (server), handling network requests on your behalf. Understanding how proxies work is critical for network security, optimization, and access management.
What is a Proxy Server?
A proxy server (from the English proxy — representative, intermediary) is a server in a computer network that acts as an intermediary between a user (client) and other internet servers. All client requests go through the proxy first, which then forwards them to the destination server. Responses from the destination server also return to the proxy first before being sent back to the client.