VPS know-how & server operations
Tutorials, optimization and server operations for developers and sysadmins. Practical, concise, and well-sourced.

Vietnam data localization: Decree 53 and PDPL for foreign firms
Explains what Vietnam's Decree 53 and Personal Data Protection Law require from foreign firms, and how to pick VPS or colocation inside Vietnam that keeps you compliant.

Optimize Ubuntu VPS network performance in Vietnam for low-latency international connectivity
Tune advanced sysctl, nftables, and kernel settings on an Ubuntu VPS in Vietnam to reduce international latency and keep connections stable, with verify steps for every change.

WireGuard vs. OpenVPN for stable China VPS access
Compare WireGuard and OpenVPN to pick the stable self-hosted VPN for users in China. Technical criteria, real trade-offs, and a clear winner for your use case.

Decree 53 data localization for foreign businesses in Vietnam
Decode Vietnam Decree 53 for foreign firms. Learn data storage rules, hosting implications, compliance steps and practical VPS choices for a lawful, low-risk setup.

Build a Stable WireGuard VPN Server on AlmaLinux for China Teams
Hướng dẫn dựng WireGuard VPN server trên AlmaLinux VPS tại Việt Nam, giúp team Trung Quốc truy cập ổn định, mã hóa hiện đại và cấu hình tối ưu cho đường truyền xuyên biên giới.

Set Up a Self-Hosted VPN on Rocky Linux VPS in Vietnam
This guide walks through deploying WireGuard on a Rocky Linux VPS in Vietnam, configured for stable access from China. No marketing. Copy-paste commands, verify steps, and troubleshooting included.

Deploy GitLab CE on a Debian VPS in Vietnam: A Sysadmin's Guide
Step-by-step setup of self-hosted GitLab CE on a Debian 12 VPS with a Vietnam IPv4: install, configure, secure with SSL, and back up.

Harden a Debian VPS for production with a security checklist
Lock down a Debian 12/13 VPS for production: SSH keys, firewall, fail2ban, automatic updates, and verification steps for every layer.

Decree 53 data localization compliance for foreign companies
Hướng dẫn tuân thủ Nghị định 53/2025 về lưu trữ dữ liệu tại Việt Nam cho doanh nghiệp nước ngoài trong năm 2026.

Setting Up a Secure SMTP VPS with Clean IP in Vietnam
Hướng dẫn chi tiết thiết lập SMTP VPS với IP sạch tại Việt Nam: chọn gói VPS có IP chuyên dụng, cấu hình rDNS/SPF/DKIM/DMARC, bảo mật Postfix và kiểm tra uy tín IP trước khi gửi email hàng loạt.

Advanced Nginx Security Hardening on an Ubuntu VPS for Production
Harden Nginx on an Ubuntu VPS for production: TLS 1.3, strong ciphers, security headers, rate limiting, bot blocking. Includes verify steps and troubleshooting.

Set Up a Secure OpenVPN Server on AlmaLinux 9 for China
Hướng dẫn dựng OpenVPN trên AlmaLinux 9 VPS tại Việt Nam, tối ưu cho người dùng Trung Quốc với cấu hình TCP 443, xác thực chứng chỉ và kiểm tra kết nối thực tế.

Vietnam Decree 53 Data Localization Rules for SaaS
A practical compliance guide for foreign SaaS providers navigating Vietnam Decree 53 data localization requirements, with clear rules and actionable steps for 2026.