Re: Ada/GNAT/AWS-friendly web hosting

Marius,
As a professional web hoster, I strongly advise you to forget Apache and use only Nginx, both as a proxy (in your case) and as a web server (generic case). Not only does Apache have security problems, but its performance is pitiful compared to Nginx.
If you have several sites, the ideal solution is to enter everything in https/port 443 on the nginx proxy (which will be able to manage X509/TLS https certificates) and exit on as many ports 8080, 8081, 8082, etc. as you have websites.
All the best from here.
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Stéphane Rivière
Ile d'Oléron - France