# TlsOptions.OnAuthenticateAsClient

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.connections.security/orleans.connections.security.tlsoptions/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.connections.security/orleans.connections.security.tlsoptions/properties/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.Connections.Security/Security/TlsOptions.cs)

```csharp
public Action<ConnectionContext, TlsClientAuthenticationOptions>? OnAuthenticateAsClient
```

Provides direct configuration of the [TlsClientAuthenticationOptions](/orleans/docs/api/csharp/microsoft.orleans.connections.security/orleans.connections.security.tlsclientauthenticationoptions/) on a per-connection basis. This is called after all of the other settings have already been applied. Use this to set the target host name for SNI (Server Name Indication) via [TlsClientAuthenticationOptions](/orleans/docs/api/csharp/microsoft.orleans.connections.security/orleans.connections.security.tlsclientauthenticationoptions/).