# ---------------------------------------------------------------------- # | Default behavior for unknown hosts | # ---------------------------------------------------------------------- # # Drop requests for unknown hosts. # # If no default server is defined, Nginx will use the first found server. # To prevent host header attacks, or other potential problems when an unknown # server name is used in a request, it's recommended to drop the request # returning 444 "No Response". server { listen [::]:443 ssl http2 default_server; listen 443 ssl http2 default_server; server_name _; include h5bp/tls/ssl_engine.conf; include h5bp/tls/certificate_files.conf; include h5bp/tls/policy_balanced.conf; return 444; }