Index: glibc-2.31/nss/nsswitch.c
===================================================================
--- glibc-2.31.orig/nss/nsswitch.c
+++ glibc-2.31/nss/nsswitch.c
@@ -134,6 +134,10 @@ __nss_database_lookup2 (const char *data
     /* Read config file.  */
     service_table = nss_parse_file (_PATH_NSSWITCH_CONF);
 
+  /* Retry with the OS vendor provided config file.  */
+  if (service_table == NULL)
+    service_table = nss_parse_file ("/usr" _PATH_NSSWITCH_CONF);
+
   /* Test whether configuration data is available.  */
   if (service_table != NULL)
     {