-the early, ALPN, and servername callbacks. The early callback is executed
-first, then the servername callback, followed by the ALPN callback.
+the ClientHello, ALPN, and servername callbacks. The ClientHello callback is
+executed first, then the servername callback, followed by the ALPN callback.
+
+The SSL_set_tlsext_host_name() function should only be called on SSL objects
+that will act as clients; otherwise the configured B<name> will be ignored.