WordPress vs Modern Stack: practical guides, reviews, and comparisons for developers and founders.https://doancongtuan.com/en-ushttps://doancongtuan.com/guides/astro-series/astro-comparison-page/https://doancongtuan.com/guides/astro-series/astro-comparison-page/How to create a comparison page in Astro with Content Collections — schema design for two-product comparisons, winner display, verdict box, and a comparison table built with plain CSS.Thu, 23 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-guide-page/https://doancongtuan.com/guides/astro-series/astro-guide-page/How to create a guide content type in Astro with difficulty badges, estimated reading time, and a structured step-by-step layout — using Content Collections and plain CSS.Thu, 23 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-images-cloudinary/https://doancongtuan.com/guides/astro-series/astro-images-cloudinary/What Cloudinary is, how to use it in Astro, how URL-based transforms work, and when to switch from local images to an external CDN — with real examples from astro-content-lab.Thu, 23 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-images-local/https://doancongtuan.com/guides/astro-series/astro-images-local/How Astro handles images differently from WordPress — the Image component, heroImage in frontmatter, Markdown syntax vs MDX component, and a practical workflow for managing image files.Thu, 23 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-mdx-components/https://doancongtuan.com/guides/astro-series/astro-mdx-components/What MDX is, how it differs from Markdown, how to install it in Astro, and why it changes what's possible inside a blog post — with real component examples.Thu, 23 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-review-page/https://doancongtuan.com/guides/astro-series/astro-review-page/How to create a structured review page in Astro with Content Collections — schema design, pros/cons display, rating stars, and a verdict box. With plain CSS and a promise of what's coming.Thu, 23 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-dynamic-routes/https://doancongtuan.com/guides/astro-series/astro-dynamic-routes/How getStaticPaths works, what dynamic routes are, and how to build a blog listing page and detail page from Astro Content Collections.Sat, 04 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-markdown-content/https://doancongtuan.com/guides/astro-series/astro-markdown-content/How Markdown works in Astro, what frontmatter is, and why plain text content can feel cleaner than WordPress for developer-owned sites.Sat, 04 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/content-collections-astro/https://doancongtuan.com/guides/astro-series/content-collections-astro/Why Content Collections exist, how to set them up with the modern Astro content API, and how Zod schema validation keeps content reliable.Sat, 04 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-deploy-vercel/https://doancongtuan.com/guides/astro-series/astro-deploy-vercel/Step-by-step guide to deploying a static Astro site to Vercel, connecting GitHub, understanding production and preview deployments, adding a custom domain, and troubleshooting failed builds.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-first-project-diary/https://doancongtuan.com/guides/astro-series/astro-first-project-diary/An honest two-day Astro learning diary from a WordPress developer, covering local development, VS Code, pages, layouts, and the real beginner mistakes that made the workflow finally click.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-pages-layouts-components/https://doancongtuan.com/guides/astro-series/astro-pages-layouts-components/How Astro's file-based routing, shared layouts, and reusable components work, explained for WordPress developers who think in themes, templates and shortcodes.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-styling-plain-css/https://doancongtuan.com/guides/astro-series/astro-styling-plain-css/How CSS works in Astro, including scoped styles, global CSS, CSS variables, and why a clean layout doesn't need a framework. With the actual CSS used to build this demo site.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/setting-up-first-astro-project/https://doancongtuan.com/guides/astro-series/setting-up-first-astro-project/Step-by-step Astro setup guide for beginners and WordPress developers, covering Node.js, Git, VS Code, localhost, GitHub, and common first-project mistakes.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/static-site-generation-explained/https://doancongtuan.com/guides/astro-series/static-site-generation-explained/Learn how static site generation works, how Astro builds HTML before visitors arrive, and when SSG offers a simpler performance model than WordPress.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/what-is-astro/https://doancongtuan.com/guides/astro-series/what-is-astro/Astro explained by someone who spent 10+ years building WordPress sites. What Astro is, what it is not, when it beats WordPress, and when WordPress is still the better choice.Thu, 02 Jul 2026 00:00:00 GMThttps://doancongtuan.com/blog/100-lighthouse-score-is-not-an-seo-strategy/https://doancongtuan.com/blog/100-lighthouse-score-is-not-an-seo-strategy/A 100 Lighthouse score is useful technical hygiene, but it is not an SEO strategy without search intent, content quality, authority, and internal links.Tue, 30 Jun 2026 00:00:00 GMThttps://doancongtuan.com/blog/astro-fast-not-automatically-100-lighthouse/https://doancongtuan.com/blog/astro-fast-not-automatically-100-lighthouse/Astro Lighthouse scores are not automatic. Real production sites still need image optimization, gzip, font cleanup, delayed analytics, and accessibility fixes.Tue, 30 Jun 2026 00:00:00 GMThttps://doancongtuan.com/blog/astro-lighthouse-optimization-100-score/https://doancongtuan.com/blog/astro-lighthouse-optimization-100-score/Astro Lighthouse optimization case study: how I fixed gzip, Google Fonts, analytics, accessibility, and Sharp images to reach cleaner 98-100 Lighthouse scores.Tue, 30 Jun 2026 00:00:00 GMThttps://doancongtuan.com/blog/removed-google-fonts-astro-pagespeed/https://doancongtuan.com/blog/removed-google-fonts-astro-pagespeed/Should you remove Google Fonts from Astro? A practical font performance case study covering system fonts, CSS @import, preconnect, and display=swap tradeoffs.Tue, 30 Jun 2026 00:00:00 GMThttps://doancongtuan.com/blog/serving-astro-with-nginx-production-settings/https://doancongtuan.com/blog/serving-astro-with-nginx-production-settings/How to serve Astro with Nginx on a VPS: dist folder deploys, HTTPS redirects, try_files, gzip, cache headers, security headers, curl tests, and 404 pages.Tue, 30 Jun 2026 00:00:00 GMThttps://doancongtuan.com/blog/astro-image-optimization-sharp-lighthouse/https://doancongtuan.com/blog/astro-image-optimization-sharp-lighthouse/Astro image optimization with Sharp: responsive WebP variants, srcset, lazy loading, hero priority, and automated build-time image generation for Lighthouse.Tue, 30 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-json-ld-schema/https://doancongtuan.com/guides/astro-series/astro-json-ld-schema/Build reusable JSON-LD schema in Astro for articles, reviews, authors, publishers, and breadcrumbs while avoiding hardcoded identity data.Sat, 20 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-llms-txt/https://doancongtuan.com/guides/astro-series/astro-llms-txt/Auto-generate llms.txt and llms-full.txt from Astro Content Collections while understanding the proposal's limits and lack of Google Search benefit.Sat, 20 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-sitemap-robots-txt/https://doancongtuan.com/guides/astro-series/astro-sitemap-robots-txt/Build sitemap.xml and robots.txt in Astro, compare the official sitemap integration with a custom route, and use accurate content modification dates.Sat, 20 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-seo-meta-tags-open-graph/https://doancongtuan.com/guides/astro-series/astro-seo-meta-tags-open-graph/Build an Astro SEO component for canonical URLs, meta descriptions, Open Graph, and social cards without hardcoding site-wide values.Fri, 19 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-tailwind-refactor/https://doancongtuan.com/guides/astro-series/astro-tailwind-refactor/Refactor Astro pages and components to Tailwind CSS v4, fix scoped-style leaks, handle generated Markdown, and avoid dynamic class build failures.Fri, 19 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-series/astro-tailwind-v4-setup/https://doancongtuan.com/guides/astro-series/astro-tailwind-v4-setup/Install Tailwind CSS v4 in Astro, choose a safe migration strategy, and refactor global styles and layouts using lessons from a real content site.Fri, 19 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/astro-for-wordpress-developers/https://doancongtuan.com/guides/astro-for-wordpress-developers/A practical Astro guide for WordPress developers who want to understand static site frameworks — what changes, what you gain, what you give up, and when the trade is worth making.Mon, 15 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/best-wordpress-tools-for-affiliate-sites/https://doancongtuan.com/guides/best-wordpress-tools-for-affiliate-sites/A practical WordPress stack for affiliate, coupon, comparison, and content sites — based on tools I have actually used or seriously considered. Not a top-20 plugin list.Mon, 15 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/wordpress-themes-for-affiliate-sites/https://doancongtuan.com/guides/wordpress-themes-for-affiliate-sites/Choosing a WordPress theme for an affiliate site is really choosing a content model. A practical breakdown of which theme fits which type of affiliate site — and why the wrong choice costs more than the license fee.Mon, 15 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/wordpress-performance-stack/https://doancongtuan.com/guides/wordpress-performance-stack/WordPress speed is not one plugin. It is hosting, theme, server cache, object cache, database tuning, and image discipline — in that order. A practical layer-by-layer breakdown.Mon, 15 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/wordpress-vps-hosting/https://doancongtuan.com/guides/wordpress-vps-hosting/A practical guide to WordPress VPS hosting: when shared hosting is enough, when to move to managed cloud or self-managed VPS, and which path makes sense for your situation.Mon, 15 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/wordpress-vs-modern-stack/https://doancongtuan.com/guides/wordpress-vs-modern-stack/A practical guide to choosing between WordPress, Astro, Webflow, and Next.js — from a developer who has built with WordPress and Astro, and studied the others as practical alternatives.Mon, 15 Jun 2026 00:00:00 GMThttps://doancongtuan.com/reviews/rank-math/https://doancongtuan.com/reviews/rank-math/Honest Rank Math review from a developer who uses it on affiliate and content sites. What it does well, where it gets bloated, and whether you actually need Pro.Sat, 13 Jun 2026 00:00:00 GMThttps://doancongtuan.com/reviews/rehub/https://doancongtuan.com/reviews/rehub/ReHub review from someone who ran it in production for affiliate, coupon, and price comparison sites. What it does well, where it becomes heavy, and when to move on.Sat, 13 Jun 2026 00:00:00 GMThttps://doancongtuan.com/reviews/cloudways/https://doancongtuan.com/reviews/cloudways/An honest Cloudways review for developers and WordPress site owners who want cloud performance without managing a Linux server themselves. What it is, who it fits, and where it falls short.Sat, 13 Jun 2026 00:00:00 GMThttps://doancongtuan.com/reviews/wp-rocket/https://doancongtuan.com/reviews/wp-rocket/Honest WP Rocket review for WordPress site owners. What it does well, what it cannot fix, and when a premium caching plugin is worth paying for.Sat, 13 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/add-second-site/https://doancongtuan.com/guides/vps-series/add-second-site/How to host multiple WordPress sites on one Vultr VPS — a second Nginx server block, database, and WordPress installation without touching the first site.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/backup-database/https://doancongtuan.com/guides/vps-series/backup-database/Set up automated daily WordPress database backups using mysqldump and cron. Compress, timestamp, rotate old backups, and upload offsite with rclone.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/backup-files-rclone/https://doancongtuan.com/guides/vps-series/backup-files-rclone/Configure rclone to sync WordPress files and database backups to Cloudflare R2 or Google Drive. Automate with cron so offsite backups happen without thinking about them.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/backup-strategy/https://doancongtuan.com/guides/vps-series/backup-strategy/A practical backup strategy for a self-managed WordPress VPS. What actually needs backing up, how often, where to store it, and why the rm -rf / story from Part 1 is the best argument for having this figured out before you need it.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/change-ssh-port/https://doancongtuan.com/guides/vps-series/change-ssh-port/Step-by-step guide to moving SSH off port 22 and disabling root login on Rocky Linux 9 — without locking yourself out. The exact sequence matters, and this article covers why.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/complete-wordpress-install/https://doancongtuan.com/guides/vps-series/complete-wordpress-install/The browser installation wizard, first wp-admin steps, securing wp-admin access by IP in Nginx, and the setup sequence that gets a WordPress site production-ready quickly.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/configure-wp-config/https://doancongtuan.com/guides/vps-series/configure-wp-config/Every important setting in wp-config.php explained — database credentials, authentication salts, WP_DEBUG, and the Redis connection that prepares WordPress for object caching.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/disable-password-login/https://doancongtuan.com/guides/vps-series/disable-password-login/The final security step for SSH: disabling password authentication entirely so only key holders can connect. How to do it safely, why it matters, and what to do the one or two times you lock yourself out anyway.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/install-nginx/https://doancongtuan.com/guides/vps-series/install-nginx/How to install Nginx on Rocky Linux 9, understand its directory structure, and test the config correctly — including why nginx -t is the most important habit you'll build.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/download-wordpress/https://doancongtuan.com/guides/vps-series/download-wordpress/Three commands to get WordPress onto your VPS — download, extract, and move into place. No FTP, no control panel, just wget and tar.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/database-commands-reference/https://doancongtuan.com/guides/vps-series/database-commands-reference/Every mysqldump and restore command you'll actually need. Copy, change the database name and filename, run. No explanation you don't need — just commands that work.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/install-mariadb/https://doancongtuan.com/guides/vps-series/install-mariadb/Install MariaDB on Rocky Linux 9, run the security setup, create a database and dedicated user for WordPress. Plus an honest note on why using root for everything is convenient but not ideal.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/install-redis/https://doancongtuan.com/guides/vps-series/install-redis/Install Redis on Rocky Linux 9, connect it to WordPress with the Redis Object Cache plugin, and understand what it actually caches and why it makes a real difference.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/install-ssl/https://doancongtuan.com/guides/vps-series/install-ssl/Free SSL certificates on Rocky Linux 9 with Certbot — installation, Nginx config update, auto-renewal setup, and what to do when you run certbot and nothing seems to change.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/lamp-vs-lemp/https://doancongtuan.com/guides/vps-series/lamp-vs-lemp/The difference between LAMP and LEMP stacks for WordPress, why Nginx is the better choice for a VPS, and an honest admission: most people pick Nginx because tutorials recommend it, and that's a fine reason.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/install-php-fpm/https://doancongtuan.com/guides/vps-series/install-php-fpm/How to install PHP-FPM on Rocky Linux 9 using the Remi repository, choose between Unix socket and TCP port, and configure the extensions WordPress needs.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/mariadb-tuning/https://doancongtuan.com/guides/vps-series/mariadb-tuning/Basic MariaDB tuning for a WordPress VPS — InnoDB buffer pool sizing, query cache, and enabling slow query logging to find what's actually making your database slow.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/php-fpm-tuning/https://doancongtuan.com/guides/vps-series/php-fpm-tuning/How to tune PHP-FPM worker processes for your VPS RAM, calculate the right pm.max_children value, and prevent the out-of-memory crashes that happen when WordPress gets unexpected traffic.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/nginx-server-block/https://doancongtuan.com/guides/vps-series/nginx-server-block/The complete Nginx server block for WordPress with FastCGI page caching — every directive explained. Plus the difference between server-level cache and plugin cache, and a WP Rocket storage warning worth knowing.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/point-domain-dns/https://doancongtuan.com/guides/vps-series/point-domain-dns/How to set DNS A records to point your domain to a Vultr VPS, why propagation time varies, how to check it's working, and why Cloudflare DNS makes this significantly faster.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/restore-from-backup/https://doancongtuan.com/guides/vps-series/restore-from-backup/The exact steps to restore a WordPress site from a mysqldump backup and rclone file backup — whether recovering from accidental deletion, server failure, or migration to a new VPS.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/server-updates/https://doancongtuan.com/guides/vps-series/server-updates/How to update Rocky Linux system packages, Nginx, PHP, and MariaDB without taking down a live WordPress site — and what to do when an update breaks something.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/setup-fail2ban/https://doancongtuan.com/guides/vps-series/setup-fail2ban/How to install and configure Fail2ban on Rocky Linux 9 to automatically ban IPs that repeatedly fail SSH authentication. Including how to unban yourself when it blocks you by mistake.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/setup-firewalld/https://doancongtuan.com/guides/vps-series/setup-firewalld/How to configure firewalld on Rocky Linux 9 for a WordPress VPS. Which ports to open, which to keep closed, and how to debug when something stops working because of the firewall.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/test-lemp-stack/https://doancongtuan.com/guides/vps-series/test-lemp-stack/Verify every component of your LEMP stack is working correctly before installing WordPress. Ten minutes of testing now prevents hours of debugging later.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/vps-monitoring/https://doancongtuan.com/guides/vps-series/vps-monitoring/A practical monitoring routine for a self-managed WordPress VPS. The five metrics that actually matter, how to check them in under five minutes, and what numbers should make you act.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/whats-next/https://doancongtuan.com/guides/vps-series/whats-next/A recap of everything built in From Zero to VPS, honest reflection on what was hard, what surprised you, and where to go next depending on what you want to build.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/why-security-first/https://doancongtuan.com/guides/vps-series/why-security-first/What actually happens to an unsecured VPS within minutes of going online. Real log data, real attack patterns, and why the security steps in this part aren't optional.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/wordpress-file-permissions/https://doancongtuan.com/guides/vps-series/wordpress-file-permissions/The correct file and directory permissions for WordPress on Rocky Linux with Nginx — and the quick fix for the three most common permission errors you'll hit.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/wordpress-performance-intro/https://doancongtuan.com/guides/vps-series/wordpress-performance-intro/What actually limits WordPress performance on a VPS, why cache helps but has a ceiling, and the honest architecture decision you face when WordPress stops being enough.Mon, 08 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/my-wordpress-vps-stack/https://doancongtuan.com/guides/my-wordpress-vps-stack/The exact server stack I run for WordPress on a Vultr VPS. What each piece does, why I chose it, and what I would not recommend beginners copy blindly.Wed, 03 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/wordpress-outgrows-shared-hosting/https://doancongtuan.com/guides/wordpress-outgrows-shared-hosting/How to know when shared hosting is the bottleneck and not just the config. The signs I looked for before moving to VPS, and what to do about it.Wed, 03 Jun 2026 00:00:00 GMThttps://doancongtuan.com/reviews/vultr/https://doancongtuan.com/reviews/vultr/An honest review of Vultr VPS from someone who runs their main projects on it. What works, what does not, and who should actually use it.Wed, 03 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/checklist-before-starting/https://doancongtuan.com/guides/vps-series/checklist-before-starting/Five things you genuinely need before setting up your first VPS — and a longer list of things you don't. Starting from zero is fine. Starting unprepared costs more time.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/choose-linux-distro/https://doancongtuan.com/guides/vps-series/choose-linux-distro/The honest answer to which Linux distribution to pick for your WordPress VPS. Why the choice matters less than tutorials make it seem, what actually differs between them, and how to decide without overthinking it.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/choose-vps-plan/https://doancongtuan.com/guides/vps-series/choose-vps-plan/What the numbers on a VPS plan actually mean, how much you need to start, and the real story of what happens when you run out. With honest notes on swap, upgrades, and when more RAM isn't the answer.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/connect-vps-first-time/https://doancongtuan.com/guides/vps-series/connect-vps-first-time/Step-by-step guide to your first SSH connection — on Mac, Windows, and Termius. What you'll see, what to do, the errors you'll likely hit, and the moment that changes how you think about servers.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/create-ssh-key/https://doancongtuan.com/guides/vps-series/create-ssh-key/Step-by-step guide to generating an SSH key pair, copying it to your Vultr VPS, and understanding why your key only works on the machine that created it. For Mac, Linux, and Windows.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/file-permissions/https://doancongtuan.com/guides/vps-series/file-permissions/Linux file permissions explained without the math. What rwx means, why 755 and 644 are the WordPress standard, and how to fix the four most common permission errors without reaching for chmod 777.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/initial-server-setup/https://doancongtuan.com/guides/vps-series/initial-server-setup/The 10-minute checklist after your first SSH connection. Update the system, create a non-root user, set a hostname. These steps prepare your server for everything in Part 3 — and skipping them makes later work harder.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/dangerous-commands/https://doancongtuan.com/guides/vps-series/dangerous-commands/The Linux commands that can cause irreversible damage — what they do, why they're dangerous, and the three habits that protect you. Including the rm -rf / story you need to hear before you need it.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/nano-vs-vim/https://doancongtuan.com/guides/vps-series/nano-vs-vim/Two terminal text editors, one clear recommendation for beginners. How to use Nano for everyday config editing, the minimum you need to know about Vim, and how to escape it when you accidentally open it.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/linux-commands-daily/https://doancongtuan.com/guides/vps-series/linux-commands-daily/The Linux commands that matter for WordPress VPS work — grouped by what they do, with real examples and honest notes on when to use each one. Not a complete reference. A practical starting point.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/read-terminal-errors/https://doancongtuan.com/guides/vps-series/read-terminal-errors/Terminal errors look intimidating until you know how to read them. 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Based on real use — not benchmarks from a spreadsheet. With a clear recommendation and the reasoning behind it.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/what-is-linux/https://doancongtuan.com/guides/vps-series/what-is-linux/Linux explained for WordPress developers who've never touched it. What it is, why servers use it, which version to pick, and why the choice matters less than you think.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/what-is-terminal/https://doancongtuan.com/guides/vps-series/what-is-terminal/Terminal explained for people who've only used GUI tools. What it is, why servers use it, how to open it, and the mindset shift that makes it stop feeling intimidating.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/what-is-vps/https://doancongtuan.com/guides/vps-series/what-is-vps/VPS explained without jargon — what it actually is, how it differs from shared hosting, and who actually needs one. If you've been confused by the term, this is the place to start.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/guides/vps-series/what-is-ssh/https://doancongtuan.com/guides/vps-series/what-is-ssh/SSH explained without jargon. What it is, how it works, why servers use it, and how to set up your SSH client before Part 2.5. Includes the tools worth using and the ones worth skipping.Mon, 01 Jun 2026 00:00:00 GMThttps://doancongtuan.com/comparisons/divi-vs-elementor/https://doancongtuan.com/comparisons/divi-vs-elementor/A practical comparison of Divi and Elementor for WordPress developers and agencies. One side is hands-on. The other is research-based. Both are labeled clearly.Wed, 22 Apr 2026 00:00:00 GMThttps://doancongtuan.com/guides/how-to-speed-up-wordpress/https://doancongtuan.com/guides/how-to-speed-up-wordpress/Practical steps to make WordPress faster — from hosting and caching to image optimization and Core Web Vitals. What actually works and what's just noise.Wed, 15 Apr 2026 00:00:00 GMThttps://doancongtuan.com/blog/best-wordpress-hosting-for-developers/https://doancongtuan.com/blog/best-wordpress-hosting-for-developers/Honest breakdown of WordPress hosting options for developers. From budget shared hosting to managed cloud and self-managed VPS. With real trade-offs, not just promotional copy.Wed, 08 Apr 2026 00:00:00 GMThttps://doancongtuan.com/comparisons/astro-vs-nextjs/https://doancongtuan.com/comparisons/astro-vs-nextjs/Practical comparison of Astro and Next.js for content sites and React apps. From a developer who builds with Astro in production and knows Next.js well enough to tell you when to use it instead.Wed, 01 Apr 2026 00:00:00 GMThttps://doancongtuan.com/blog/best-hosting-for-astro-sites/https://doancongtuan.com/blog/best-hosting-for-astro-sites/Where to host your Astro site, from free static hosting to VPS. A practical breakdown for developers who want fast, simple, low-cost deployments.Wed, 25 Mar 2026 00:00:00 GMThttps://doancongtuan.com/blog/when-not-to-use-wordpress/https://doancongtuan.com/blog/when-not-to-use-wordpress/WordPress powers 43% of the web, but it is the wrong tool for plenty of projects. Here's when to skip it and what to use instead.Fri, 20 Mar 2026 00:00:00 GMThttps://doancongtuan.com/comparisons/wordpress-vs-webflow/https://doancongtuan.com/comparisons/wordpress-vs-webflow/A practical comparison between WordPress and Webflow for developers, designers, and agencies deciding on a platform.Fri, 20 Feb 2026 00:00:00 GMThttps://doancongtuan.com/reviews/generatepress/https://doancongtuan.com/reviews/generatepress/A research-based look at GeneratePress for WordPress developers. What makes it stand out from heavier themes, who it suits, and what to verify before buying.Thu, 12 Feb 2026 00:00:00 GMThttps://doancongtuan.com/guides/should-you-migrate-from-wordpress-to-astro/https://doancongtuan.com/guides/should-you-migrate-from-wordpress-to-astro/A practical guide to deciding whether migrating your WordPress site to Astro makes sense — and what the process actually involves.Thu, 05 Feb 2026 00:00:00 GMThttps://doancongtuan.com/reviews/hostinger/https://doancongtuan.com/reviews/hostinger/An honest look at Hostinger's shared hosting for small WordPress sites and static deployments. What works, what does not, and who it actually suits.Wed, 28 Jan 2026 00:00:00 GMThttps://doancongtuan.com/comparisons/wordpress-vs-astro/https://doancongtuan.com/comparisons/wordpress-vs-astro/A detailed head-to-head comparison of WordPress and Astro covering performance, CMS features, developer experience, and which to choose.Tue, 20 Jan 2026 00:00:00 GMT