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VPS know-how & server operations

Tutorials, optimization and server operations for developers and sysadmins. Practical, concise, and well-sourced.

Security

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.

Sep 10, 2026 10 min read
Security

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.

Sep 09, 20269 min
Security

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.

Sep 08, 202610 min
Security

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.

Sep 07, 202610 min
Security

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.

Sep 05, 202612 min
Security

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.

Sep 02, 202610 min
Security

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.

Aug 31, 202611 min
Security

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.

Aug 30, 202611 min
Security

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.

Aug 28, 202610 min
Security

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.

Aug 26, 202612 min
Security

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.

Aug 25, 202612 min
Security

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.

Aug 25, 20269 min
Security

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.

Aug 24, 202611 min

Linux or Windows VPS, hosted in Vietnam

Full root or Administrator access over SSH and RDP, multiple Vietnam IPv4, NVMe infrastructure, billed monthly.

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