Apache/Subdomains

Setting up apache to transparently reroute subdomains to port number on same server: https://serverfault.com/questions/195611/how-do-i-redirect-subdomains-to-a-different-port-on-the-same-server#195831

Doing the same with nginx: https://serverfault.com/questions/447258/redirect-wildcard-subdomains-to-https-nginx

SSL stapling: no per-subdomain ssl certificates: https://serverfault.com/a/447757