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2026-03-20
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 more2026-03-04
TTL (Time To Live) — is an eight-bit field in the IP header that defines the maximum number of “hops” (nodes) a packet can traverse before being discarded. Each time it passes through any router the TTL value …
Read more2026-03-02
If you still run next build directly on the production server — your server is really suffering. CPU pegged, OOM-kill, 502 errors and long downtimes — this is a classic that needs to end. In 2026 the industry standard is …
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 more2025-12-31
If you do self-hosting, run a home lab, or manage a small VPS, you’re probably familiar with Portainer. It’s the de-facto standard: a powerful, all-encompassing “Swiss Army knife” for Docker. But …
Read more2025-12-30
When working on real projects (CDN change, migration, refactor) you often need to bulk-replace one URL with another. At first glance the task seems trivial: sed -i 's|old|new|g' **/* — and done. In reality that approach …
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