Try fix dns (#10485)

v2rayN/ServiceLib/Models/CoreConfigs/V2rayConfig.cs

@@ -214,6 +214,7 @@ public class DnsServer4Ray
     public List<string>? domains { get; set; }
     public bool? skipFallback { get; set; }
     public List<string>? expectedIPs { get; set; }
+    public bool? finalQuery { get; set; }
     public string? tag { get; set; }
 }
 

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayDnsService.cs

@@ -374,13 +374,20 @@ public partial class CoreConfigV2rayService
             {
                 return;
             }
-            foreach (var dnsAddress in dnsAddresses)
+            //foreach (var dnsAddress in dnsAddresses)
+            for (var i = 0; i < dnsAddresses.Count; i++)
             {
+                var dnsAddress = dnsAddresses[i];
                 var dnsServer = CreateDnsServer(dnsAddress, domains, expectedIPs);
                 if (isDirectDns)
                 {
                     dnsServer.tag = $"{Global.DirectDnsTag}-{directDnsTagIndex++}";
                 }
+                if (expectedIPs is not null
+                    && i == expectedIPs.Count - 1)
+                {
+                    dnsServer.finalQuery = true;
+                }
                 var dnsServerNode = JsonUtils.SerializeToNode(dnsServer);
                 dnsItem.servers.Add(dnsServerNode);
             }