diff --git a/docs/distributed_02.rst b/docs/distributed_02.rst
index e6a777738f9b8389a96f87023c225e0fe331ba28..e984743c33c7f97adcbaa4ad2abf7f07909e00f9 100644
--- a/docs/distributed_02.rst
+++ b/docs/distributed_02.rst
@@ -86,7 +86,7 @@
             server 192.168.100.40:2222 weight=1;
             server 192.168.100.40:2223 weight=1;  # 多节点
             # 这里是 coco ssh 的后端ip
-            least_conn;
+            hash $remote_addr;
         }
         server {
             listen 2222;
diff --git a/docs/setup_by_centos7.rst b/docs/setup_by_centos7.rst
index c7da6d3f56f8f0ae20880e04afce2255378054de..40ee23705616fedeb87531c7622b1bbbb80561ad 100644
--- a/docs/setup_by_centos7.rst
+++ b/docs/setup_by_centos7.rst
@@ -262,7 +262,7 @@ CentOS 7 安装文档
             server localhost:2222 weight=1;
             server localhost:2223 weight=1;  # 多节点
             # 这里是 coco ssh 的后端ip
-            least_conn;  # 优先连接连接数最少的后端服务
+            hash $remote_addr;
         }
         server {
             listen 2222;