change rust lib port

protocol/library/src/client.rs

@@ -51,7 +51,7 @@ impl Default for GurtClientConfig {
             max_connections_per_host: 4,
             custom_ca_certificates: Vec::new(),
             dns_server_ip: "135.125.163.131".to_string(),
-            dns_server_port: 8877,
+            dns_server_port: 4878,
         }
     }
 }