Another fun trick you can play is to use a private IP on your public DNS records. This is useful for Jellyfin on Chromecast for instance
it uses 8.8.8.8 for DNS lookup (and ignores your router settings), so it wants a fully qualified domain name. But it has no problem accessing local hosts, so long as it's from 8.8.8.8's record.
An eligible voter who is denied voting for any reason is every bit as bad as a fraudulent vote. CMV.