nginx_webmin.conf

nginx_webmin.conf

set $webminip <WEBMIN IP>;
set $webminport <WEBMIN PORT>;
set $netdataport <NETDATA PORT>; # optional

location /webmin/ {
    proxy_redirect https://$host:$webminport/ https://$host/webmin/;
    proxy_pass https://$webminip:$webminport/;
    proxy_set_header Host $host;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Accept-Encoding "";
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_http_version 1.1;
    proxy_pass_request_headers on;
    sub_filter :$netdataport \/netdata;
    sub_filter_once off;
    sub_filter_last_modified on;
    sub_filter_types *;
}