Merge pull request #5047 from tdonohue/port_4961_to_8x

[Port dspace-8_x] Fix for issue #4960 PM2 cluster mode ECONNREFUSED errors

Author: tdonohue

src/main.server.ts

@@ -7,11 +7,19 @@ import 'reflect-metadata';
  */
 import '@angular/localize/init';
 
+import { setDefaultResultOrder } from 'node:dns';
+
 import { bootstrapApplication } from '@angular/platform-browser';
 
 import { AppComponent } from './app/app.component';
 import { serverAppConfig } from './modules/app/server-app.config';
 
+// Apply DNS resolution order fix for Node.js 17+ by preferring IPv4 over IPv6.
+// This fixes "ECONNREFUSED ::1:8080" errors in PM2 cluster mode when
+// the backend only listens on IPv4
+// See https://github.com/DSpace/dspace-angular/issues/4960
+setDefaultResultOrder('ipv4first');
+
 const bootstrap = () => bootstrapApplication(AppComponent, serverAppConfig);
 
 export default bootstrap;