ELMA365 On-Premises > Other > Configure proxy to use ELMA365 behind a reverse proxy / Configure Nginx to use ELMA365 behind a reverse proxy

Configure Nginx to use ELMA365 behind a reverse proxy

A reverse proxy is used to redirect requests from external users sent to the server in the company’s corporate network. A reversed proxy needs to be installed on the company’s gateway that has:

  • At least one public IP address that gets requests from the Internet.
  • Connection to the corporate network, for example,

To use a reverse proxy, you need to register a domain name and add a DNS A record specifying the reverse proxy’s public IP address. You can register an unlimited number of domain names for one IP address. Then, depending on the domain name, you can distribute the incoming traffic to different servers within the corporate network using the proxy_pass directive.

In the example below, we’re using the elma365client.domain.com domain name.

The example server with the ELMA365 application is located at the following IP address in the corporate network:

начало внимание

The ELMA365 application will not work correctly with port forwarding. This article shows how to use Nginx as the reverse proxy.

конец внимание

Here is an example of Nginx reverse proxy configuration for the ELMA365 application:

server {
    listen 80;
    server_name elma365client.domain.com; #external domain that ELMA365 will be available at
    return 301 https://$server_name$request_uri; 
server {
    listen 443 ssl http2;
    server_name elma365client.domain.com; #external domain that ELMA365 will be available at
    ssl_certificate /etc/nginx/cert.crt;
    ssl_certificate_key /etc/nginx/cert.key;
    location / {
        proxy_pass; #IP address of the server that ELMA365 is installed on 
        proxy_http_version 1.1;
        proxy_cache_bypass $http_upgrade;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme; 

During installation or reconfiguration, in the Enter host field, specify elma365client.domain.com as the external domain that ELMA365 will be available at and enable SSL termination.

начало внимание

The following parameters are required for the web sockets in the application to work correctly:

  • proxy_http_version 1.1
  • proxy_set_header Upgrade $http_upgrade
  • proxy_set_header Connection "upgrade"

конец внимание

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