Nginx Proxy Header via another Porxy

Troubleshooting
1

Hey all.
hope you guys are well. I have a proxy extproxy:8080 , the cooporate only allows traffic from, We have apache server with the following config.

  • when ever the user visits abc.com
  • the apache will send the traffic with the new header api.cloudflare.io
  • via a proxy extproxy:8080
    This works without issues. however when I do it via nginx it does not connect to the proxy proprtly and disconnects.
</VirtualHost abc.com:443>
SSLEngine on
SSLProtocol -All +TLSv1.2
SSLProxyProtocol -All +TLSv1.2
SSLCipherSuite ECDHE-ECDS
SSLProxyCipherSuite HIGH:MEDIUM:!aNULL:!MD5:!SEED:!IDEA
SSLStrictSNIVHostCheck On
SSLSessionTickets Off
SSLHonorCipherOrder Off
 
SSLProxyEngine on
SSLProxyVerify off
SSLProxyCheckPeerName off
SSLProxyCheckPeerExpire off
 
#For serverSSL
SSLCertificateFile      /etc/httpd/conf/ssl/Outbound/b2b.cer
SSLCertificateKeyFile   /etc/httpd/conf/ssl/Outbound/b2b.key
 
<Location />
    ProxyPass            https://api.cloudflare.io/
    ProxyPassReverse     https://api.cloudflare.io/
</Location>
        ProxyRemote *  https://extproxy:8080
</VirtualHost>

Nginx config

server {
    listen 443 ssl;
    server_name abc.com;

    ssl_protocols TLSv1.2;
    ssl_ciphers ECDHE-ECDS;
    ssl_prefer_server_ciphers off;
    ssl_session_tickets off;

    ssl_certificate      /etc/httpd/conf/ssl/Outbound/b2b.cer;
    ssl_certificate_key  /etc/httpd/conf/ssl/Outbound/b2b.key;

    location / {
        
        proxy_ssl_protocols TLSv1.2;
        proxy_ssl_ciphers HIGH:MEDIUM:!aNULL:!MD5:!SEED:!IDEA;
        proxy_ssl_verify off;
        proxy_set_header Host https://api.cloudflare.io/;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # Setting a remote proxy (similar to Apache's ProxyRemote)
    resolver 8.8.8.8;  # Replace with your actual DNS resolver
    proxy_pass_request_headers on;
    proxy_pass https://extproxy:8080;
}

can Nginx send request and rewrite the header to another proxy ??