Kalau kamu tumbuh besar di Indonesia, kemungkinan besar kamu pernah mendengar kalimat ini, “Komik terus! Kapan belajarnya?” Versinya macam-macam, dari “Matikan TV, kerjakan PR!” sampai “Main gitar nggak bakal bikin kamu jadi dokter.” Kalimat itu lahir dari niat baik. Bagi banyak orang tua dan guru, jalan untuk “jadi orang” cuma satu: hafal pelajaran, dapat nilai… Continue reading
Running an older database version in production is not necessarily a problem, especially when it is stable and has been running reliably for years. However, there comes a point when security updates, performance improvements, and new features make upgrading a reasonable decision. Recently, I needed to plan an upgrade of a MariaDB environment running on… Continue reading
Upgrading a database server is usually straightforward when everything goes according to plan. Update the repository, install the new packages, restart the service, and verify that the database is running. But sometimes, a successful package installation is only half the story. Recently, I upgraded a MariaDB Master–Slave replication environment from MariaDB 10.11.19 to 11.8.9 on… Continue reading
Node.js is a critical component of many production environments, powering REST APIs, background workers, web applications, and real-time services. Keeping the runtime updated is an important part of maintaining server security. On April 30, 2026, Node.js 20 reached End of Life (EOL). This means it no longer receives official upstream security updates. The October 21,… Continue reading
Beberapa hari lalu, ritme kerja kami terhenti sejenak karena tim mendapat kabar bila salah satu agency rekanan kami akan libur pada hari Jumat dan Senin. Kita harus mengatur ulang deliverables salah satu project client. Menariknya adalah alasan libur tersebut, karena setahu kami tidak ada libur nasional di tanggal 9 dan 12 Oktober 2026. Wow, keren… Continue reading
MongoDB 8.x.x is one of those services that can run quietly for a long time, until one day you check disk usage and realize the log file has grown into something unreasonable. Not because MongoDB 8.x.x is broken, but because the logging behavior is doing exactly what it was told to do, keep writing, keep… Continue reading
Upgrading Wazuh on Ubuntu 24.04 can look successful at first, only to stall at the final step when wazuh-manager fails to complete its post-install process. In this guide, I walk through a real upgrade from Wazuh 4.13.1 to 4.14.4, explain why the dashboard may still load while the API remains unavailable, and show how a simple systemd override can allow the manager to start cleanly and complete the upgrade.
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Sometimes I want a MariaDB slave to have the same user accounts and passwords as the master, but I do not want it to inherit the same permissions. This is common when the slave is used for reporting, internal access, standby, or a limited failover role. The accounts may need to match, but the grants… Continue reading
Sometimes the hardest problems in infrastructure are actually the simplest ones. Not because they are complicated, but because we forget the exact commands when we need them. Migrating a MariaDB database from one server to another is one of those things. You’ve done it many times, but when you need it again six months later,… Continue reading
I hit a classic “it must be Docker” moment. This post documents what was actually happening and the minimal, correct fix. The setup Symptom, “Local open, remote timeout” On the server: Everything looked correct: Docker was listening on 0.0.0.0:22222, and localhost could connect. But from outside, connections to port 22222 timed out. First principle, don’t… Continue reading