VPS know-how & server operations
Tutorials, optimization and server operations for developers and sysadmins. Practical, concise, and well-sourced.
Real-time VPS monitoring with Netdata (and when to add Prometheus)
Install Netdata in one line for per-second VPS metrics, secure the dashboard behind a reverse proxy, and know when to add Prometheus.
Measuring latency from Guangzhou, Shenzhen and Shanghai to a Vietnam VPS
Measure real latency from Chinese cities to a Vietnam VPS using mtr, ping, and looking glasses. Reproducible commands, no fabricated numbers.
GitLab vs GitHub for teams that must keep source code in-country
Compare self-hosted GitLab CE vs GitHub cloud for teams that need to keep source code in country. Deployment, compliance, cost for Vietnam VPS.
Running CI/CD runners on the same VPS as GitLab and when it breaks
A practical guide to running GitLab CI/CD runners on the same VPS as your GitLab instance, when resource contention hits, and how to know it's time to separate runners onto dedicated infrastructure.
Moving a WordPress site from shared hosting to a VPS
Step-by-step guide to migrate a WordPress site from shared hosting to a VPS with zero-downtime cutover and proper DNS TTL handling. Covers backup, rsync, database dump, DNS changes and verification.
Why shared SMTP relays hurt deliverability once you scale
Learn why shared SMTP relay deliverability drops as your email volume grows, and when to switch to a dedicated IP on a Vietnam VPS.
Warming up a new sending IP: a realistic 30-day schedule
Learn the correct 30-day IP warmup schedule for email sending. A day-by-day volume table, technical commands, and real-world advice to protect your sender reputation.
SPF, DKIM and DMARC on a self-hosted SMTP server
A step-by-step guide to configuring SPF, DKIM, and DMARC on your self-hosted SMTP server to improve email deliverability and prevent spoofing.
Port 25 access on a VPS: why most providers block it and when it is opened
Understand why most VPS providers block port 25 by default, how to request it unlocked, and when it makes sense for your email infrastructure.
A clean dedicated IP for outbound email: what clean actually means
Learn what a clean dedicated IP for outbound email really means: no blacklist history, proper rDNS, isolated reputation. Essential reading for anyone operating a self-hosted mail server.
Do you need a Vietnamese entity to buy hosting in Vietnam?
Find out if a foreigner needs a local company to buy hosting in Vietnam. Short answer: you don't. We explain why and how to get a Vietnam VPS as a foreigner.
Paying for Vietnamese hosting with PayPal: what to expect
A practical guide for foreign buyers on using PayPal to pay for Vietnam VPS hosting. Covers currency, invoicing, and renewal with a local provider.
Expanding a SaaS product into the Vietnam market: the infrastructure checklist
A technical infrastructure checklist for SaaS companies expanding into Vietnam: hosting location, compliance, payments, language, support hours. From a VPS provider with local data centers.