> For the complete documentation index, see [llms.txt](https://docs.plenit.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.plenit.com/docs-en/productos/servers/concepts.md).

# Concepts

Explanations and definitions of the key concepts of Servers: what it is, how to size it, images, networks, access, and data protection.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>What is a server?</strong></td><td>What a Plenit server is, the pay-as-you-go model, and the division of responsibilities between Plenit and the partner.</td><td><a href="/pages/c476c8e75f76be92c8b08510c217f22e2a568a86">/pages/c476c8e75f76be92c8b08510c217f22e2a568a86</a></td></tr><tr><td><strong>Size your server: CPU, RAM, and disk</strong></td><td>How to choose CPU, RAM, and disk according to the customer's workload, with starting points by type of use and scaling tips.</td><td><a href="/pages/615021d34d9e637f6e5c50fc10d6470aea469f04">/pages/615021d34d9e637f6e5c50fc10d6470aea469f04</a></td></tr><tr><td><strong>Images and applications</strong></td><td>Available operating systems, how to create reusable custom images, and what appliances the Marketplace offers.</td><td><a href="/pages/d8171d9f0bb58450b641a10a25765df9c77e492b">/pages/d8171d9f0bb58450b641a10a25765df9c77e492b</a></td></tr><tr><td><strong>Server networks</strong></td><td>The four network types (Standard, VPC, Layer 2, and Direct IP) and the criteria for choosing each one.</td><td><a href="/pages/cd53015c45e59bcd78a41bcf490b47af54264b45">/pages/cd53015c45e59bcd78a41bcf490b47af54264b45</a></td></tr><tr><td><strong>Remote access</strong></td><td>The ways to connect to and manage your servers: RDP, SSH, VPN, and console.</td><td><a href="/pages/14d983752df7e4b47625867d8172166210a1843b">/pages/14d983752df7e4b47625867d8172166210a1843b</a></td></tr><tr><td><strong>Backup and data protection</strong></td><td>How automatic backups and snapshots work, retention, and protection against ransomware.</td><td><a href="/pages/1d80c4d5dfbad725e0651bc1301f214a9a9e2122">/pages/1d80c4d5dfbad725e0651bc1301f214a9a9e2122</a></td></tr><tr><td><strong>Glossary</strong></td><td>Definitions of the terms specific to Servers.</td><td><a href="/pages/88c6a80d5643afb75408d27ff23ba1e8dc083375">/pages/88c6a80d5643afb75408d27ff23ba1e8dc083375</a></td></tr></tbody></table>


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