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Using systemd-analyze security to Harden Linux Services: From 9.6 to 2.0 in 5 Minutes

By admin September 12, 2026

Don't let your services run with loose root privileges. Learn how to use systemd-analyze security to score and harden Linux service security in a few simple steps.

Security

Systemd Hardening: Securing Services with ProtectSystem, ProtectHome, and PrivateTmp

By admin September 3, 2026

systemd ships with powerful built-in hardening features — ProtectSystem, ProtectHome, and PrivateTmp — that isolate services at the kernel level with no extra software required. This guide covers practical configuration steps and how to verify effectiveness with systemd-analyze security.

Fedora

UKI on Fedora: Manually Packaging the Kernel for Absolute Secure Boot Security

By admin August 17, 2026

Combine Kernel and Initrd into a single file with Unified Kernel Images (UKI) on Fedora. Optimize Secure Boot and prevent unauthorized system access.

Linux

Centralizing Linux Logs with systemd-journal-remote: A Lightweight ELK Alternative

By admin August 17, 2026

Manage logs centrally without the RAM-heavy ELK stack. This guide shows how to use systemd-journal-remote to collect binary logs from multiple Linux servers while keeping metadata intact.

Fedora

Mastering systemd-oomd on Fedora: Rescuing Your PC from RAM-Related Freezes

By admin August 10, 2026

No more system freezes on Fedora by mastering systemd-oomd. A detailed guide on configuring PSI, Swap limits, and protecting critical apps during RAM exhaustion.

Fedora

Podman Auto-update on Fedora: Automating Containers the Native Way

By admin July 24, 2026

Learn how to leverage Fedora's native features to automatically update and rollback containers using systemd. A lightweight, memory-efficient, and highly stable solution.

Python

Building a Telegram Bot with Python and python-telegram-bot: Receive Notifications and Control Your Server Remotely

By admin July 17, 2026

A step-by-step guide to building a Telegram Bot with Python and python-telegram-bot v20+ for remote server monitoring and control. Covers command handling, inline confirmation keyboards, proactive alerts from cron jobs, and running the bot as a systemd service.

Linux

systemd-networkd: Minimal Linux Server Network Configuration — Replace NetworkManager with .network Files

By admin July 10, 2026

A guide to switching from NetworkManager to systemd-networkd on a headless Linux server — configure your network with simple .network files that are lighter and boot faster. Includes a 5-minute quick start, static IP and DHCP setup, multi-interface and VLAN configuration, and practical debugging tips from real VPS management experience.

Centos

Configuring Automatic Security Updates on CentOS Stream 9 with dnf-automatic: Auto-Patch Vulnerabilities and Get Email Notifications

By admin July 1, 2026

A guide to installing and configuring dnf-automatic on CentOS Stream 9 to automatically apply daily security updates. Includes email notification setup via Postfix and practical tips from real-world server management experience.

Fedora

Goodbye ‘podman generate systemd’: How to Use Quadlet for Professional Container Management on Fedora

By admin June 27, 2026

Forget podman generate systemd! This guide helps you master Podman Quadlet on Fedora to manage rootless containers like a pro using .container files.