Running AI models locally is no longer just a laboratory activity: with Ollama, you download and run LLMs on your own Linux machine without sending data to the cloud or paying per token. This post explains where the project came from — its origin explains much of its design — and shows how … Read more
A server without monitoring only tells you it is down when someone complains. With Node Exporter, each host exposes Linux metrics; Prometheus collects and stores them as time series for queries and alerts. This guide uses Ubuntu packages where available, avoids exposing metrics to the internet, and validates each step before continuing. The … Read more
Like it or not, systemd is the init system of virtually every current distribution — Ubuntu, Debian, Fedora, Arch, openSUSE. Mastering half a dozen commands handles 90% of everyday service management. Here are the essentials, straight to the point. Managing services systemctl status nginx # status, PID, last log lines sudo systemctl … Read more
Administering one server by hand is manageable. Administering ten, updating package after package over SSH, invites mistakes. Ansible solves this: you describe the desired state in YAML, and it applies it to every server — no agent, just SSH. This guide is the next step for anyone who already knows the basics; … Read more
The current generation of AI assistants has moved out of the browser and into the terminal — where sysadmins and developers actually work. They read files, explain errors, write scripts, and execute commands with your approval. This post is the updated September 2026 guide: what exists, how to install each one, and … Read more
CI/CD is not a product. It is the habit of integrating, testing, and releasing software in short cycles, with as many automated steps as possible. The “merge day” of 2019 remains an anti-pattern. What has changed is where the YAML lives, who … Read more
Infrastructure as code only becomes routine when plan and apply run in the same place as the code. In GitLab, that fits in a .gitlab-ci.yml: each push generates a plan, the merge request shows the diff, and the … Read more
Go began at Google in 2007 (Pike, Thompson, Griesemer) and became open source in 2009 — we tell that story in The History of the Go Language. Fast compilation, one binary, concurrency with goroutines. Docker, Kubernetes, Terraform: Go. In 2019, this … Read more
You cannot say the information technology job market is doing well in 2017, but there is no denying it was one of the sectors least affected by the crisis. That is because, in difficult times, the field … Read more
There is no excuse left for not learning Docker. If you cannot learn Docker with Jeferson, you will not learn it with anyone — he really knows his stuff! Recently, Jeferson from LinuxTips posted a video on his channel announcing … Read more
