# sec_protocol_options_set_tls_server_name(_:_:) ``` func sec_protocol_options_set_tls_server_name(_ options: sec_protocol_options_t, _ server_name: UnsafePointer) ``` ## Parameters `options` A `sec_protocol_options_t` instance. `server_name` A NULL-terminated string carrying the server name. ## Discussion \abstract Set the server name to be used when verifying the peer’s certificate. This will override the server name obtained from the endpoint. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)