diff --git a/src/main/jni/pdnsd b/src/main/jni/pdnsd
index 69827590..eb5c47e5 160000
--- a/src/main/jni/pdnsd
+++ b/src/main/jni/pdnsd
@@ -1 +1 @@
-Subproject commit 698275907b0c038b4eb40acbc067c8bf143e548f
+Subproject commit eb5c47e5bd6b81ac048686b9826b8e0cda7aa9d4
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala
index 226f27a1..095f8ef4 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala
@@ -181,7 +181,7 @@ class ShadowsocksNatService extends BaseService {
     val conf = profile.route match {
       case Route.BYPASS_CHN | Route.BYPASS_LAN_CHN | Route.GFWLIST => {
         ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
-          "127.0.0.1", profile.localPort + 53, "1.2.4.8, 114.114.114.114, 208.67.222.222", "", profile.localPort + 63, "")
+          "127.0.0.1", profile.localPort + 53, "1.2.4.8, 114.114.114.114", "", profile.localPort + 63, "")
       }
       case Route.CHINALIST => {
         ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
index c874cf6b..463a867b 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
@@ -282,7 +282,6 @@ class ShadowsocksVpnService extends VpnService with BaseService {
     })
     val cmd = ArrayBuffer[String](getApplicationInfo.dataDir + "/ss-tunnel"
       , "-V"
-      , "-u"
       , "-t", "10"
       , "-b", "127.0.0.1"
       , "-L", "8.8.8.8:53"
@@ -301,7 +300,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
     val conf = profile.route match {
       case Route.BYPASS_CHN | Route.BYPASS_LAN_CHN | Route.GFWLIST => {
         ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
-          "0.0.0.0", profile.localPort + 53, "1.2.4.8, 114.114.114.114, 208.67.222.222", ipv6, profile.localPort + 63, ipv6)
+          "0.0.0.0", profile.localPort + 53, "1.2.4.8, 114.114.114.114", ipv6, profile.localPort + 63, ipv6)
       }
       case Route.CHINALIST => {
         ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
diff --git a/src/main/scala/com/github/shadowsocks/utils/Constants.scala b/src/main/scala/com/github/shadowsocks/utils/Constants.scala
index 62ab1dc0..c8fdce1f 100644
--- a/src/main/scala/com/github/shadowsocks/utils/Constants.scala
+++ b/src/main/scala/com/github/shadowsocks/utils/Constants.scala
@@ -73,7 +73,6 @@ object ConfigUtils {
       | server_ip = %s;
       | server_port = %d;
       | query_method = tcp_only;
-      | run_ipv4 = on;
       | min_ttl = 15m;
       | max_ttl = 1w;
       | timeout = 10;
@@ -87,7 +86,6 @@ object ConfigUtils {
       | %s
       | reject_policy = negate;
       | reject_recursively = on;
-      | timeout = 5;
       |}
       |
       |rr {
@@ -106,28 +104,32 @@ object ConfigUtils {
       | cache_dir = "%s";
       | server_ip = %s;
       | server_port = %d;
-      | query_method = tcp_only;
-      | run_ipv4 = on;
+      | query_method = udp_only;
       | min_ttl = 15m;
       | max_ttl = 1w;
       | timeout = 10;
       | daemon = off;
+      | par_queries = 4;
       |}
       |
       |server {
       | label = "remote-servers";
       | ip = %s;
       | timeout = 3;
-      | uptest = none;
-      | preset = on;
+      | query_method = udp_only;
       | %s
+      | reject_policy = negate;
+      | reject_recursively = on;
       |}
       |
       |server {
       | label = "local-server";
       | ip = 127.0.0.1;
+      | query_method = tcp_only;
       | port = %d;
       | %s
+      | reject_policy = negate;
+      | reject_recursively = on;
       |}
       |
       |rr {