// Topic collection
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2026-03-31
Modern CAPTCHA has long ceased to be just an “exercise in recognizing crooked letters.” Today it’s a full-fledged anti-bot mechanism that analyzes not only the explicit action of the user, but also the …
Read more2026-03-30
Imagine: an ethical hacker finds an exposed .env file or a critical vulnerability on your server. They don’t want to hack you — they want to help. They go to the site, look for contacts and… hit a wall. The …
Read more2026-03-20
Are you tired of entering passwords or tokens for every git pull and git push? Do you copy your SSH key to every server and worry it might be stolen or “stuck” in logs? In this article we’ll look at …
Read more2026-01-19
When Docker first appeared, it was loved for the slogan: “Build once, run anywhere”. Developers stopped hearing the phrase “it works on my machine, but not on the server.” But along with convenience came a new threat. A …
Read more2026-01-17
Imagine you are building a house. You designed the walls yourself, checked every brick, and made sure you didn’t leave the keys in the lock. But what if the concrete you bought from a third-party supplier starts …
Read more2026-01-15
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 more2026-01-02
OpenVPN is a reliable and time-tested VPN protocol that allows organizing secure remote access to a local network. MikroTik RouterOS supports OpenVPN in server mode starting from version 6.x (TCP), and from version 7+ — …
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 …
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