Posted inAI
LocalAI: Building Your Own “Official” OpenAI API Server on Linux
Build your own AI server with LocalAI on Linux. A detailed guide on running LLMs, image generation, and TTS with 100% OpenAI API compatibility, fully offline.
Posted inSecurity
SSH Bastion Host (Jump Server) Configuration Guide: A Secure Gateway for Linux Systems
Stop exposing internal servers to the Internet. Learn how to configure a professional SSH Bastion Host (Jump Server) to manage access and securely log Linux system activity.
Posted inUbuntu
Installing Virtualmin on Ubuntu 22.04: A ‘$0’ Multi-Domain Hosting Management Solution
Forget expensive cPanel licenses. This guide helps you install Virtualmin on Ubuntu 22.04 to manage dozens of websites professionally and for free.
Posted inCentos
Installing OpenVPN on CentOS Stream 9: Enterprise-Grade Security with SELinux
A production-ready guide to installing OpenVPN on CentOS Stream 9. Optimize security with AES-256-GCM, configure Firewalld, and manage SELinux without disabling it.
Posted inCentos
Installing GitLab CE on CentOS Stream 9: Building Your Own Internal Code and CI/CD Forge
Properly install GitLab CE on CentOS Stream 9. Detailed instructions from hardware configuration and SELinux security to free Let's Encrypt SSL setup.
Posted inLinux
How to Enable and Configure TCP BBR on Linux Server: Optimize Network Speed and Reduce Latency
TCP BBR is Google's congestion control algorithm, built into Linux since kernel 4.9, offering better throughput and lower latency than the default CUBIC. Activation takes just a few sysctl commands — no reboot required, no application code changes.
Posted inMonitoring
Lightweight Linux Server Monitoring with Collectd, InfluxDB, and Grafana
Install Collectd, InfluxDB, and Grafana to build a lightweight Linux server monitoring system. A perfect solution for low-spec VPS with minimal resource usage.
Posted inLinux
systemd-networkd: Minimal Linux Server Network Configuration — Replace NetworkManager with .network Files
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.
Posted inNetwork
Cloudflare WARP on Linux Server: The ‘Lifesaver’ Solution for Network Performance and IP Security
Don't let your server get IP-blocked or throttled on international routes. This guide covers installing Cloudflare WARP on Linux with Proxy Mode to secure and optimize your connection — surprisingly simple to set up.
Posted inFedora
Installing and Configuring Redis on Fedora Server: Handling SELinux and firewalld for High-Performance Cache Server Deployment
Redis on Fedora Server won't connect after installation — the root cause typically comes from three layers: the default localhost bind address, firewalld blocking port 6379, and SELinux enforcing mode denying network connections. This article goes straight to fixing all three, with a production security deployment checklist included.