Block 8443 on public interface. DNAT your whitelisted IPs to 127.0.0.1:8443 where you're hosting your real page. Put another page on 443 that serves your acce

Block 8443 on public interface. DNAT your whitelisted IPs to 127.0.0.1:8443 where you're hosting your real page. Put another page on 443 that serves your access request and notifies you. But honestly you should just do the access list in nginx itself.