Tutorials, tips, and guides for Linux administrators. Learn SSH, Nginx, MySQL, firewalls, automation, and best practices for securing and managing your servers.
Proxmox vs VMware: Cost, Features, and Migration Tips Proxmox vs VMware: Cost, Features, and Migration Tips Virtualization remains at the heart of modern hosting, cloud, and enterprise IT. In 2025, two solutions stand out in discussions among sysadmins and infrastructure…
Best VPS Specs for Small SaaS Apps (CPU/RAM/Disk/Bandwidth) Best VPS Specs for Small SaaS Apps (CPU/RAM/Disk/Bandwidth) Launching a Software-as-a-Service (SaaS) application is easier than ever, but selecting the right infrastructure is still one of the hardest parts. For startups and…
IPv4 vs IPv6 Addressing for Hosting: Planning and Pitfalls IPv4 vs IPv6 Addressing for Hosting: Planning and Pitfalls Every server on the internet needs an IP address. For decades, that meant IPv4, the familiar dotted notation like 192.168.1.1. But IPv4…
WordPress at Scale: 100k+ Requests/Min on a Single Server (Guide) WordPress at Scale: 100k+ Requests/Min on a Single Server (Guide) WordPress powers over 40% of the internet, but its reputation for poor scalability persists. Out-of-the-box, a default WordPress installation can…
UFW vs iptables: Simple Firewall Rules That Actually Work UFW vs iptables: Simple Firewall Rules That Actually Work Every production Linux server needs a firewall. Even with cloud-level protections and DDoS mitigation, a properly configured host firewall is a critical…
rsync vs rclone vs scp: Fastest Way to Move Data Between Servers rsync vs rclone vs scp: Fastest Way to Move Data Between Servers Moving data efficiently is one of the most important sysadmin tasks in 2025. Whether you’re migrating…
How to Configure IPv6 on Your VPS/Dedicated Server How to Configure IPv6 on Your VPS/Dedicated Server In 2025, IPv6 adoption is no longer optional. With IPv4 exhaustion and growing reliance on cloud-native and IoT applications, ISPs and data centers are…
Monitoring Basics with Zabbix: Install, Triggers, and Dashboards Monitoring Basics with Zabbix: Install, Triggers, and Dashboards When running production infrastructure, monitoring is non-negotiable. Whether it’s a VPS fleet, a cluster of dedicated servers, or a hybrid setup across colocation and…
Let’s Encrypt on Nginx: Free SSL with Auto-Renew (2025) Let’s Encrypt on Nginx: Free SSL with Auto-Renew (2025) In 2025, HTTPS is no longer optional. Browsers flag HTTP as insecure, SEO rankings drop without TLS, and modern APIs often require…
Hardening a Linux Server for Production (CIS-style Checklist) Hardening a Linux Server for Production (CIS-style Checklist) A production Linux server must be secure, resilient, and compliant. Out-of-the-box defaults are not enough. Attackers actively scan the internet for misconfigured SSH, weak…