nginx reverse proxy - synology dsm issue
Asked 3 years ago, but I had this month (Oct 2018) the same problem. Yes, it is a mess with hard-coded paths. Simple PassProxy/ProxyPassReverse is not working. I am no computer expert, not at all. I found this configuration somewhere on internet, among many, many other propositions, and as a miracle it was the only one that worked ... (Debian 9, Apache2). Slashes must be exactly in this way. You must call dsm as http://your.local.server.name/dsm/ or http://your.internet.name/dsm/. I hardly know what exactly every configuration line does, and I don't dare delete anything. Let the gurus figure out ...
On my machine, I edited /etc/apache2/sites-enabled/000-default.conf but I suppose the script would work on any reverse-proxy server.
<VirtualHost *:80>ServerName your.local.server.nameServerAlias your.internet.name<Location /dsm/>ProxyPass http://your.synology.dsm:5000/ProxyPassReverse /ProxyHTMLEnable OnProxyHTMLURLMap / /dsm/RequestHeader unset Accept-EncodingOrder allow,denyAllow from all</Location></VirtualHost>