A few days after setting up my simple firewall with ferm on Debian 12, everything seemed perfect. The host was quiet, the rules were clean, and I finally had a minimal setup that did exactly what I wanted, blocking everything inbound, keeping outbound open, and allowing SSH only from the local LAN. It worked flawlessly,… Continue reading
Pada bulan November 2019, tepat enam tahun yang lalu, saya akhirnya benar-benar melangkah keluar dari gerbang sebuah perusahaan besar yang sudah menjadi bagian hidup saya selama hampir separuh usia produktif.
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There are many ways to configure a firewall in Linux. Some people prefer ufw, others go straight to iptables or nftables. But in between those layers of complexity, there’s a small, quiet tool that often goes unnoticed: Ferm, For Easy Rule Making. The name says it all. I like Ferm because it doesn’t try to… Continue reading
Kadang rasanya dunia ini makin ramai tapi makin kosong. Timeline penuh debat, grup WhatsApp riuh oleh broadcast separuh benar, dan semua orang merasa punya tugas mulia menyelamatkan dunia, asal versinya sendiri. Kita hidup di era di mana algoritma lebih peka dari nurani, dan “kebenaran” bergantung pada siapa yang paling keras berteriak. Di tengah semua kebisingan… Continue reading
In continuous integration environments, it’s often necessary to run Jenkins agents or scripts securely under a dedicated system account. On Debian 12, this means creating a non-interactive user, one that can authenticate via SSH keys but cannot log in interactively or hold a password. This guide walks through setting up a minimal, hardened Jenkins user… Continue reading
Solusi lengkap untuk masalah komputer menyala tapi layar gelap di DisplayPort. Ulasan pengaturan BIOS, Windows, dan monitor pada Gigabyte X470 + Gigabyte RX 5700 XT. Suatu pagi komputer saya menyala seperti biasa. Kipas berputar, lampu SSD berkedip, dan suara startup Windows terdengar di speaker. Tapi layar tetap gelap total. Tidak ada logo BIOS, tidak ada… Continue reading
Redash remains one of the most approachable open-source tools for building dashboards, sharing SQL queries, and collaborating on data. While the project is no longer actively maintained upstream, the community builds (10.x) are still widely used for internal analytics. In this article, I’ll show how to bring up Redash quickly on Debian 12 using Docker… Continue reading
It happened to me on a quiet evening, running the usual sudo apt update on a Debian 12 server that powers Grafana for dashboards I rely on daily. Instead of the usual green lines of updates, I was greeted by a red warning. For a moment, it looked like the repository had gone bad, but… Continue reading
WireGuard is often chosen because it’s modern, lightweight, and fast compared to older VPN protocols. Its codebase is much smaller than OpenVPN or IPsec, which makes it easier to audit and maintain, reducing the risk of hidden vulnerabilities. This simplicity also translates to better performance with lower latency and faster connection times. Another reason to… Continue reading
Bagi pengguna Windows, membuat arsip berformat .zip sudah jadi kebiasaan sehari-hari. Tinggal klik kanan, pilih Send to → Compressed (zipped) folder, selesai. Kalau ingin menambahkan password, biasanya tinggal mengandalkan aplikasi tambahan yang sudah umum dipakai sejak lama. Praktis, bawaan sistem, dan tanpa perlu instalasi apa-apa lagi. Tidak heran kalau banyak orang percaya bahwa menaruh password… Continue reading