Practical DevOps and production deployment tutorials.https://deployeasy.io.vn/enhttps://deployeasy.io.vn/en/blog/postgresql-backup-vps-pg-dump-cron/https://deployeasy.io.vn/en/blog/postgresql-backup-vps-pg-dump-cron/Learn how to automate PostgreSQL backups on a VPS using pg_dump, cron, checksums, retention, offsite copies, and scheduled restore tests.Sun, 02 Aug 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/deploy-docker-to-vps-with-github-actions/https://deployeasy.io.vn/en/blog/deploy-docker-to-vps-with-github-actions/Build a Docker image with GitHub Actions, publish it to GHCR, and deploy a tested release to an Ubuntu VPS with a safe rollback path.Sun, 26 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/github-actions-deploy-nodejs-to-vps/https://deployeasy.io.vn/en/blog/github-actions-deploy-nodejs-to-vps/Create a secure GitHub Actions pipeline that builds, tests, and deploys Node.js to a VPS over SSH with secrets, health checks, concurrency, and rollback.Wed, 15 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/docker-compose-env-postgres-password/https://deployeasy.io.vn/en/blog/docker-compose-env-postgres-password/Understand .env, env_file, and environment in Docker Compose, inspect variables inside a container, and fix PostgreSQL passwords when a volume already exists.Tue, 14 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/production-vps-monitoring-logs-healthchecks/https://deployeasy.io.vn/en/blog/production-vps-monitoring-logs-healthchecks/Monitor a production VPS with journald, Nginx logs, PM2, Docker health checks, CPU, RAM, disk, uptime, and actionable alerts.Tue, 14 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/fix-ssh-permission-denied-host-key-changed/https://deployeasy.io.vn/en/blog/fix-ssh-permission-denied-host-key-changed/Check the correct SSH user, private key, authorized_keys, file permissions, and server fingerprint before repairing publickey or known_hosts errors.Mon, 13 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/point-domain-to-vps/https://deployeasy.io.vn/en/blog/point-domain-to-vps/Point a domain to an Ubuntu VPS with A, AAAA, and CNAME records, verify DNS propagation, configure Cloudflare and Nginx, and fix www issues.Mon, 13 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/ssh-keys-for-vps-login/https://deployeasy.io.vn/en/blog/ssh-keys-for-vps-login/Create SSH keys on Windows, Linux, and macOS, add the public key to a VPS, configure an SSH alias and permissions, and fix publickey errors safely.Mon, 13 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/docker-compose-for-production/https://deployeasy.io.vn/en/blog/docker-compose-for-production/Build a safer Docker Compose production stack for Node.js and PostgreSQL with health checks, private networks, volumes, secrets, log rotation, backups, and rollback.Sun, 12 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/fix-nginx-502-bad-gateway-nodejs/https://deployeasy.io.vn/en/blog/fix-nginx-502-bad-gateway-nodejs/Find the cause of an Nginx 502 after deploying Next.js, NestJS, or Node.js with curl, ss, systemd, PM2, Docker Compose, and logs.Sun, 12 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/nginx-reverse-proxy-for-nodejs/https://deployeasy.io.vn/en/blog/nginx-reverse-proxy-for-nodejs/Configure an Nginx server block for Node.js, Next.js, or NestJS with forwarded headers, WebSockets, HTTPS, timeouts, and safe reloads.Sun, 12 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/deploy-nodejs-with-pm2-and-nginx/https://deployeasy.io.vn/en/blog/deploy-nodejs-with-pm2-and-nginx/A practical Node.js deployment guide for Ubuntu using PM2 and Nginx, including builds, environment variables, HTTPS, logs, health checks, and rollback.Sat, 11 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/docker-port-is-already-allocated/https://deployeasy.io.vn/en/blog/docker-port-is-already-allocated/Fix Docker port is already allocated, address already in use, and EADDRINUSE errors on Windows and Linux without stopping the wrong process.Sat, 11 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/install-free-https-with-certbot-nginx/https://deployeasy.io.vn/en/blog/install-free-https-with-certbot-nginx/Install a free Let's Encrypt certificate with Certbot and Nginx on Ubuntu, verify DNS and firewall access, renew automatically, and fix ACME challenge errors.Sat, 11 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/fix-docker-exit-code-137/https://deployeasy.io.vn/en/blog/fix-docker-exit-code-137/Diagnose OOM kills, RAM pressure, swap, and heavy Docker builds before changing a small VPS or restarting production services.Fri, 10 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/ubuntu-vps-production-checklist/https://deployeasy.io.vn/en/blog/ubuntu-vps-production-checklist/A practical Ubuntu VPS checklist covering a sudo user, SSH keys, UFW, security updates, swap, backups, monitoring, and final checks before deployment.Fri, 10 Jul 2026 00:00:00 GMThttps://deployeasy.io.vn/en/blog/what-is-docker/https://deployeasy.io.vn/en/blog/what-is-docker/Learn how Docker works through images, containers, Dockerfiles, volumes, networks, and Compose with a practical Node.js example.Fri, 10 Jul 2026 00:00:00 GMT