# KnownHostNames

- Kind: `class`
- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Version: `13.3.0`
- Namespace: `Aspire.Hosting.ApplicationModel`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ApplicationModel/KnownHostNames.cs)

Provides known host names for use within the Aspire application model API.

## Definition

```csharp
namespace Aspire.Hosting.ApplicationModel;

public static class KnownHostNames
{
    // ...
}
```

## Fields

- [DefaultContainerTunnelHostName](/reference/api/csharp/aspire.hosting/knownhostnames/fields.md#defaultcontainertunnelhostname) : `string` `static` -- The host name used to facilitate connections originating from containers and ending on the host network.
- [DockerDesktopHostBridge](/reference/api/csharp/aspire.hosting/knownhostnames/fields.md#dockerdesktophostbridge) : `string` `static` -- The host name used by Docker Desktop host network bridge.
- [Localhost](/reference/api/csharp/aspire.hosting/knownhostnames/fields.md#localhost) : `string` `static` -- The host name associated with the IP loopback interface (localhost).