I switched from duckdns about a year ago as it failed to resolve the addresses for my jellyfin server. I ended up buying a domain from cloudflare for 3 years for about $4, and I self-hosted ddns updater to automatically grab the dynamic ip, and set it to a subdomain.
As for your nginx config, I’d imagine you could make 2 separate config files in sites-enabled
that are nearly identical, but listen for different domains.
Something like this:
#config file 1
server {
listen 80;
server_name example_a.com;
location / {
return 301 http://example_c.com$request_uri;
#or use an ip instead of example_c.com
}
}
#config file 2
server {
listen 80;
server_name example_b.com;
location / {
return 301 http://example_c.com$request_uri;
#or use an ip instead of example_c.com
}
}
#Or use "proxy_pass http://example_c.com;" in the location tag instead of "return 301..." if you want to reverse proxy the traffic
Here’s the free oem app as an msix package as Microsoft removed the store link. link
(yes I did accidentally upload it to the wrong collection, but I don’t think I can change that)