// DevOps
Practical materials about infrastructure, networking, migrations, releases, and real problems solved in production.
74 DevOps materials published
Bitwarden CLI — the official command-line utility bw for working with a Bitwarden vault: find a password in the terminal, get a secret in a script, pass it to a CI/CD pipeline. The code is open-source, the utility is …
Read moreStandard tools like proxychains often fail when it comes to multithreaded applications, Go/Rust binaries, Electron apps and system services. Enter tun2socks — a tool that creates a virtual TUN network interface, …
Read moreHow deployment and admin panels are organized: phpMyAdmin and RabbitMQ behind nginx The choice between phpMyAdmin and Adminer for managing the database via browser is discussed in the article “phpMyAdmin, Adminer or …
Read moreA few days ago I investigated a production server compromise. Not a theoretical one — a real one, with a Monero miner, a C2 agent and a backdoor. The attack was completely automated. No one was specifically hunting that …
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 user action but also the context …
Read moreDropped frames on a stream often occur not because the computer is weak, but because the link is saturated: someone on the network watches 4K video or starts a large upload, and the stream’s outbound traffic begins …
Read moreIf you’re still running next build directly on the production server — your server is really suffering. CPU pegged, OOM-kill, 502 errors and long downtime — that’s a classic that needs to end. In 2026 the …
Read moreWhen working with real projects (changing a CDN, migration, refactoring) you often need to replace one URL with another in bulk. At first glance the task seems trivial: sed -i 's|old|new|g' **/* — and you’re done. …
Read moreNetcat (nc) reads and writes data over TCP and UDP connections. With one small utility it’s convenient to check a port, grab a service banner, transfer a file between machines, or create a temporary tunnel. Below — …
Read moreDNS (Domain Name System) — a distributed system that tells, by domain name, where a website is located, where to deliver mail, and who owns the domain. Each such response is stored in the domain zone as a record of a …
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