In this article, we’ll cover how to harden a MikroTik router against attacks and port scans, and how to keep your network off blocklists. The techniques you learn here will also help you configure other types of…
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How to Set Up Zentyal 5.0: Free All‑in‑One Linux Server…
I was once asked to provision and configure a server remotely for a small company with about 30 workstations. I went with Zentyal—an Ubuntu-based distribution purpose-built for servers in small and medium-sized corporate networks. I’ll use this…
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MikroTik Router Firewall Configuration: Step-by-Step Guide
The firewall is the first—and, unfortunately, in many cases the last—line of defense for a network. The internet is full of advice on how to configure it, but blindly copying someone else’s rules can do more harm…
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Understanding Active Directory Terminology: Navigating the Forest and Trees
Upon first encountering terms like "forest," "trees," and related "trust relationships," it's natural to feel a bit intimidated. The same goes for Active Directory itself, which has a reputation for being one of Microsoft's most complex technologies.…
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Wazuh Guide: Perimeter Security and Protection Strategies
Today, I'm going to talk about my experience working with Wazuh—an open-source platform that combines the features of SIEM and XDR. This is a flexible system that easily adapts to various tasks, from safeguarding Active Directory and…
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Checklist: Essential Steps After Purchasing a Virtual Linux Server
A virtual server is suitable for handling a wide range of tasks, especially since renting one is quite affordable. If you're using a VDS, make sure to review this quick checklist after purchasing a virtual server. Ignoring…
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Setting Up a Free and Simple Monitoring System with Netdata
You might have a server, router, or some other device that needs monitoring. How can you set up a monitoring system that doesn't demand attention or resources on its own? In these cases, I recommend using a…
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Enhancing Event Auditing in Windows with Sysmon for Security Experts
Technical specialists who have tried to find crucial information in the log files of Microsoft Windows operating systems, either when investigating cybersecurity incidents or troubleshooting issues, know that event audit logs do not always capture all the…
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Setting Up the ELK Stack: Configuring Elasticsearch, Logstash, and Kibana…
Service and application logs are often the only way to identify the source of issues, but they are usually neglected after installation and debugging. Modern approaches to development, deployment, and maintenance of applications demand a completely different…
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What Challenges To Overcome with the Help of Automated e2e…
This is an external third-party advertising publication.
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Dangerous developments: An overview of vulnerabilities in coding services
Development and workflow management tools represent an entire class of programs whose vulnerabilities and misconfigs can turn into a real trouble for a company using such software. For a pentester, knowledge of these bugs is a way to successful exploitation; while for an admin, it’s a great opportunity to enhance…
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The beginning of Nginx. Igor Sysoev tells the story of…
On December 12, 2019, a surprise search was conducted in the Moscow office of Nginx, Inc. Igor Ippolitov, an engineer at Nginx, was the first to inform the public of it in his Twitter. The original tweet…
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Boost your Nmap! Empowering iconic network scanner with NSE scripts
Nmap is an iconic scanner broadly used by hackers, and many of them are wondering how to expand its capacity. In most cases, Nmap is used in combination with other software tools. In this article, I'll explain…
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Tempesta FW, a handfull firewall against DDoS attacks
DDoS attacks have become a real scourge of the modern Internet. They are countered by both organizational methods (we wrote about them in our magazine more than once) and technical means. The latter are usually either ineffective…
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This is GameDev, baby! Interview with developers of World of…
How to serve a hundred million users without going nuts? What technologies to use? In what language, after all, to write the authorization for your future high load to make sure that everything is "like for the…
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Using synctool for server configuration management
The problem of managing a large number of systems is not new, but it has become particularly acute following the spread of clusters and cloud services. A variety of tools has been designed in order to solve…
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Review of ROSA Fresh Desktop 4
The idea of NSP (National Software Platform) is debated on the government level in Russia. Among other things, such NNP would include ROSA Linux distribution, formerly known as Mandriva. Recently, a new version was released for one…
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Usage of Amazon Auto Scaling to reduce costs of the…
It often happens that the costs of the project's hosting service are higher than its other living expenses. It specifically refers to those projects using Amazon AWS extensively. But far from everyone knows that Amazon delivers various…
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High Load Theory
In the past couple of years, the term "high load" has become very popular in the "big IT". The high loads are used to scare people during interviews and for all sorts of comparisons at various specialized…
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Getting acquainted with Liferay
Enterprise Information Portals (EIP) have gradually been transformed from fashion to an irreplaceable business tool providing employees with a single point of access to data, tools for management of business processes and information exchange facilities. The Liferay…
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