// Topic collection
49 entries for this tag
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2026-01-15
Have you ever wondered how experienced programmers find bugs in someone else’s code just by looking at it? They look for patterns. They know that if user data goes straight into an SQL query — that’s bad. If a password …
Read more2026-01-13
Imagine this scenario: you’ve been working on a cool project all night. By 4 a.m. everything is ready, you do a final git push and go to sleep with a clear conscience. In the morning you find your AWS balance is …
Read more2026-01-12
Write a Dockerfile simply: FROM node, COPY ., CMD run. It works, and for local tests this is often enough. But when such an image reaches CI/CD or, God forbid, production, problems begin: builds take forever, the image …
Read more2025-11-28
If I were sent to a deserted digital island and allowed to take only one networking utility — I would unhesitatingly choose Netcat. The official documentation (man nc) dryly states: “a utility for reading from and …
Read more2025-11-27
If your business works with users from Russia, the question of where personal data is stored concerns you directly. Phones, names, email addresses, form submissions, employee data — all of this falls under strict …
Read more2025-11-18
If you use n8n for automations involving large language models (LLM), you probably know not only about their huge capabilities but also about the risks. LLMs remain a “black box”: they can accidentally …
Read more2025-10-24
In a world where data privacy and access to resources are often restricted by geoblocks or corporate policies, tools like ProxyChains become indispensable assistants. ProxyChains — or more precisely its modern fork …
Read more2025-09-24
Introduction After we figured out insecure FTP, it’s time to meet its secure successors. Here’s where confusion often arises: many people think FTPS and SFTP are the same thing. In reality, these are two completely …
Read more2025-09-22
Getting a new VPS is just the beginning. By default, the server is insecure and not ready for production use. This checklist will help you step by step to prepare your VPS: close security holes, enable updates, and …
Read more2025-09-10
In the previous article, we deployed a basic Jitsi Meet server using Docker. Now let’s look at how to secure your server, enable authentication, and optimize performance for stable video calls. Authentication: …
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