Question 98125 in Nginx Question posted in
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In nginx why I'm unable to use a web address as a proxy pass which is already used as a proxy pass

I’ve following server blocks in my nginx configuration:

server {
        listen 80; #default_server;
        listen [::]:80; #default_server;

        client_max_body_size  20M;
        client_header_timeout 600;
        client_body_timeout   600;
        keepalive_timeout     600;
        server_name example1-proxy.in;

    location / {
                proxy_pass http://example1.in;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header Forwarded $proxy_add_forwarded;
                proxy_set_header X-Forwarded-For "";
                proxy_connect_timeout       600;
                proxy_send_timeout          600;
                proxy_read_timeout          600;
                send_timeout                600;
        }

}
server {
        listen 80; #default_server;
        listen [::]:80; #default_server;

        client_max_body_size  20M;
        client_header_timeout 600;
        client_body_timeout   600;
        keepalive_timeout     600;
        server_name example2-proxy.in;

    location / {
                proxy_pass http://example2.in;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header Forwarded $proxy_add_forwarded;
                proxy_set_header X-Forwarded-For "";
                proxy_connect_timeout       600;
                proxy_send_timeout          600;
                proxy_read_timeout          600;
                send_timeout                600;
        }

}

I want to configure the example1-proxy and example2-proxy as a proxy pass in another nginx configuration, so I did the following:

server {
            listen 80; #default_server;
            listen [::]:80; #default_server;
    
            client_max_body_size  20M;
            client_header_timeout 600;
            client_body_timeout   600;
            keepalive_timeout     600;
            server_name example5.in;
    
        location /temp1/ {
                    proxy_pass http://example1-proxy.in;
                    proxy_set_header Host $host;
                    proxy_set_header X-Real-IP $remote_addr;
                    proxy_set_header Forwarded $proxy_add_forwarded;
                    proxy_set_header X-Forwarded-For "";
                    proxy_connect_timeout       600;
                    proxy_send_timeout          600;
                    proxy_read_timeout          600;
                    send_timeout                600;
            }
            location /temp2/ {
                    proxy_pass http://example2-proxy.in;
                    proxy_set_header Host $host;
                    proxy_set_header X-Real-IP $remote_addr;
                    proxy_set_header Forwarded $proxy_add_forwarded;
                    proxy_set_header X-Forwarded-For "";
                    proxy_connect_timeout       600;
                    proxy_send_timeout          600;
                    proxy_read_timeout          600;
                    send_timeout                600;
            }
    
    }

when I hit the url http://example5.in/temp2, the http://example2-proxy.in should be called but I get following error:

{
    "timestamp": 1643470058798,
    "status": 403,
    "error": "Forbidden",
    "message": "Access Denied",
    "path": "/temp2/some path to api "
}

I don’t get why above configuration doesn’t work,please suggest any solution.

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    solved it,actually in the second nginx configuration:

    location /temp1/ {
                    proxy_pass http://example1-proxy.in;
                    proxy_set_header Host $host;

    the $host should be replaced by the example1-proxy.in, only then this server block will be active. so correct config will be :

    location /temp1/ {
                    proxy_pass http://example1-proxy.in;
                    proxy_set_header Host example1-proxy.in;

  2. 0

    When you use a proxy pass, then NGINX looks at the destination url,
    if it sees that the destination url does not include a URI (The part after the domain name e.g. /temp) which is your case since you are forwarding to "http://example2-proxy.in" then NGINX will add whatever URI it received initially to the next server.
    In your case that will result with a request to http://example2-proxy.in/temp2/

    If you want to send a request to http://example2-proxy.in/ you need to specify the URI for the destination server such as http://example2-proxy.in/

    This is a snapshot from the NGINX websitehere:
    nginx documentation

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