> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/ras-admin-guide/v21-de-de/anhang/port-referenz/internetbrowser.md).

# Internetbrowser

| **Quelle**                                       | **Ziel**                                               | **Protokolle** | **Ports** | **Beschreibung**                                                                                   |
| ------------------------------------------------ | ------------------------------------------------------ | -------------- | --------- | -------------------------------------------------------------------------------------------------- |
| Internetbrowser (HTML5) und Let's Encrypt-Dienst | RAS Web-Administrationsdienst \[RAS-Verwaltungsportal] | TCP            | 20443     | Zugriff von Administratoren auf HTML5-basiertes Verwaltungsportal der RAS-Umgebung                 |
|                                                  | HALB                                                   | TCP            | 80, 443   | Zugriff für Endbenutzer auf Parallels RAS Web Client (auf Secure Gateway im Normalmodus) über HALB |

| **Hinweis:** Die Ports 80 und 443 müssen für eingehende Anfragen geöffnet sein, wenn Sie Let's Encrypt verwenden. |                    |     |         |                                                                                          |
| ----------------------------------------------------------------------------------------------------------------- | ------------------ | --- | ------- | ---------------------------------------------------------------------------------------- |
|                                                                                                                   | RAS Secure Gateway | TCP | 80, 443 | Zugriff für Endbenutzer auf Parallels RAS Web Client (auf Secure Gateway im Normalmodus) |

**Hinweis:** Die Ports 80 und 443 müssen für eingehende Anfragen geöffnet sein, wenn Sie Let's Encrypt verwenden.


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