VPS know-how & server operations
Tutorials, optimization and server operations for developers and sysadmins. Practical, concise, and well-sourced.
Build a secure private network across VPS instances with Tailscale
Learn how to connect multiple VPS servers into a secure WireGuard-based mesh network using Tailscale, no open ports or complex configs needed.
Using tmux for Persistent Terminal Sessions on a VPS
Learn how to install and configure tmux on your VPS to keep terminal sessions alive through disconnects, manage multiple panes, and never lose work again.
User and Sudo Permissions Management on Linux VPS
Learn how to create non-root users, assign sudo privileges, and enforce secure sudo policies on a fresh Linux VPS. Protect root with practical steps for Ubuntu 24.04, Debian 12, and AlmaLinux 9.
Set up Redis cache for web applications on a Linux VPS
Learn how to set up Redis as a high-performance cache for your web application on a VPS, config, security, and best practices for 2026.
Layer 7 attack protection with Nginx rate limiting and Cloudflare
A practical guide to protecting your VPS from Layer 7 DDoS attacks using Nginx rate limiting at the origin and Cloudflare's edge WAF. Includes real configs and verification steps.
Enable 2FA for SSH Using Google Authenticator on Ubuntu 24.04
Learn how to enable two-factor authentication for SSH with Google Authenticator PAM module on Ubuntu 24.04. A practical guide to protect your VPS against unauthorized access.
Set up nftables firewall on a VPS to replace iptables
A step-by-step guide to moving from iptables to nftables on Ubuntu 24.04 or Debian 12. Learn rules, tables, chains, and persistent config for a secure VPS.
GoGetSSL SSL Certificates Starting $10/yr Review for VPS
So sánh các loại chứng chỉ GoGetSSL từ $10/năm, hướng dẫn chọn DV, Wildcard cho VPS. Bảo vệ trang web, email với SSL giá rẻ.
Rent Vietnam VPS for Access Facebook from China Location
A technical guide on how to rent a Vietnam VPS with a dedicated IPv4 to reliably access Facebook when traveling or working in China, with setup steps and provider tips.
Set up a VPS VPN for China Users on Ubuntu 24.04
Learn how to configure a WireGuard or xray-core VPN on a VPS with a dedicated IPv4 in Vietnam to help users in China access the open internet reliably.
Install OpenVPN on a VPS at thueVPS, Step-by-Step Guide
Hướng dẫn chi tiết cài đặt OpenVPN trên VPS tại thueVPS, tạo VPN cá nhân an toàn với các bước cụ thể, có verify.
Sizing a VPS for a team VPN: how many concurrent users per plan
Can a 2GB VPS handle your team VPN? This post sizes WireGuard for real concurrent usage: what each peer costs in RAM and CPU, and what plan maps to what team size.
What shared international bandwidth means for VPN quality out of Vietnam
Understand how shared international bandwidth (4 to 10 Mbps pool) affects VPN performance from a Vietnam VPS. Learn why domestic traffic runs at 100 Mbps, how cable repairs cause evenings drops, and how to test your real throughput.