diff --git a/remoting/src/main/java/org/apache/rocketmq/remoting/netty/NettySystemConfig.java b/remoting/src/main/java/org/apache/rocketmq/remoting/netty/NettySystemConfig.java
index b9c1f3fa3b2c0ce12286bb5030f4c7b7bad0a0e3..28a7f275e46c2776bcb787c8d286f3778b707130 100644
--- a/remoting/src/main/java/org/apache/rocketmq/remoting/netty/NettySystemConfig.java
+++ b/remoting/src/main/java/org/apache/rocketmq/remoting/netty/NettySystemConfig.java
@@ -57,7 +57,7 @@ public class NettySystemConfig {
      * </ol>
      */
     public static SslMode sslMode = //
-        SslMode.parse(System.getProperty(ORG_APACHE_ROCKETMQ_REMOTING_SSL_MODE, "permissive"));
+        SslMode.parse(System.getProperty(ORG_APACHE_ROCKETMQ_REMOTING_SSL_MODE, "disabled"));
 
     public static String sslConfigFile = //
         System.getProperty(ORG_APACHE_ROCKETMQ_REMOTING_SSL_CONFIG_FILE, "/etc/rocketmq/ssl.properties");