// DevOps
Practical materials about infrastructure, networking, migrations, releases, and real problems solved in production.
61 DevOps materials published
When I first started working on the project’s infrastructure, storing terraform.tfstate locally (or, I confess, dropping it into Git) seemed like a reasonable solution. But as soon as colleagues joined the work, I …
Read moreEvery streamer has encountered “dropped frames”. Often the problem isn’t a weak PC, but that the home network doesn’t know which traffic is more important. If someone in the next room starts …
Read moreModern 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 moreImagine: 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 moreIn real infrastructure, access to GitHub is not always direct. Somewhere outgoing 22/tcp is blocked, somewhere HTTPS is unstable, DPI is in place, or the corporate network allows outbound only through an intermediate …
Read moreIn production this is a routine situation: you increased the disk at the hypervisor level (VPS, cloud or Proxmox VE), but inside Ubuntu nothing changed — the / partition is still 100% full. Let’s go through how to …
Read moreAre 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 moreTTL (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 moreIf 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 moreWhen a project moves beyond local development and starts using CI/CD, a fundamental question arises: how to securely pass configuration parameters into build and deployment pipelines. This concerns not only database …
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