Docker on a VPS

How Docker helps you run multiple apps, services, and tools cleanly on one server.

Installing Docker

Install Docker from the official repository for your Linux distribution, then enable the service and verify it with a test container. Keep Docker and your base images updated.

Containers

Containers package an app with its dependencies so it runs consistently across environments. They are excellent for Node.js apps, databases, reverse proxies, monitoring tools, and internal services.

Networking

Docker networking lets containers talk to each other privately while exposing only selected ports publicly. Use a reverse proxy for web apps so TLS and routing stay clean.

Security

Both options can be secure when configured well. Dedicated servers provide physical resource isolation, while a reputable KVM VPS gives strong virtual isolation with simpler operations.

Useful Docker projects

Good first projects include Nginx Proxy Manager, Uptime Kuma, Portainer, PostgreSQL, Redis, and lightweight dashboards. Start simple and back up volumes before experimenting.

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