> 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/details/operating-systems-and-applications.md).

# Operating Systems and Applications

The catalog of available operating systems, applications, and appliances. To understand what an image is and which one is right for you, go to [Images and applications](/docs-en/productos/servers/concepts/images-and-applications.md) in Concepts.

### Operating systems

**Windows**

| System         | Versions               |
| -------------- | ---------------------- |
| Windows Server | 2016, 2019, 2022, 2025 |

**Linux**

| Distribution                 | Versions                |
| ---------------------------- | ----------------------- |
| Ubuntu                       | 22.04 LTS, 24.04 LTS    |
| Debian                       | 11, 12                  |
| CentOS Stream                | 9                       |
| Rocky Linux                  | 9, 8.6                  |
| AlmaLinux                    | 9, 8.6                  |
| SUSE Linux Enterprise Server | 15 (SP1, SP3, SP5, SP6) |
| Oracle Linux                 | 8.6                     |

### Pre-installable applications

The applications you can preinstall depend on the operating system.

| System       | Pre-installable applications                                                                                                                    |
| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------- |
| Windows      | 7-Zip, Adobe Reader DC, Google Chrome, FileZilla Client, FileZilla Server, Firefox, Foxit Reader, LibreOffice, Notepad++, PeaZip, PuTTY, WinSCP |
| Ubuntu       | Apache, MariaDB, MongoDB, MySQL, Nginx, PHP, WordPress                                                                                          |
| Debian       | PHP, WordPress                                                                                                                                  |
| Rocky Linux  | MariaDB, MongoDB, MySQL, Nginx, PHP, WordPress                                                                                                  |
| AlmaLinux    | MariaDB, MongoDB, MySQL, Nginx, PHP, WordPress                                                                                                  |
| Oracle Linux | MariaDB, MongoDB, MySQL, Nginx, PHP, WordPress                                                                                                  |

### Marketplace

Appliances and preconfigured software ready to deploy:

| Appliance    | Purpose                      | Provider    |
| ------------ | ---------------------------- | ----------- |
| 3CX          | Telephone switchboard (VoIP) | 3CX         |
| FortiGate VM | Firewall, operated as a VNF  | Fortinet    |
| FireboxV     | Firewall, operated as a VNF  | WatchGuard  |
| Pandora FMS  | Monitoring                   | Pandora FMS |

The firewalls (FortiGate VM and FireboxV) are deployed as VNF and you operate them; you'll see it in[ Server networks.](/docs-en/productos/servers/concepts/networks.md)

### Where to go next

* Maximum number of custom images and other limits: Limits and quotas.
* Deploying a server: [Quickstart.](/docs-en/productos/servers/quickstart.md)


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