# SiloTlsHostingExtensions.UseTls(ISiloBuilder, X509Certificate2, Action<TlsOptions>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.hosting.silotlshostingextensions/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.hosting.silotlshostingextensions/methods/)

[Source](https://github.com/dotnet/orleans/blob/fbe240c34e9a1389ca5ab2d52f292ed8749ea530/src/Orleans.Runtime/Hosting/SiloTlsHostingExtensions.ISiloBuilder.cs#L53-L66)

```csharp
public static ISiloBuilder UseTls(this ISiloBuilder builder, X509Certificate2 certificate, Action<TlsOptions> configureOptions)
```

Configures TLS.

### Parameters

- `builder` (`ISiloBuilder`): The builder to configure.
- `certificate` (`X509Certificate2`): The server certificate.
- `configureOptions` (`Action<TlsOptions>`): An Action to configure the [TlsOptions](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.connections.transport.security.tlsoptions/).

### Returns

The builder.