diff --git a/content/post/mysql-install.md b/content/post/mysql-install.md
index 680019b..e9170b9 100644
--- a/content/post/mysql-install.md
+++ b/content/post/mysql-install.md
@@ -111,11 +111,8 @@ categories: ["database"]
     character-set-server = utf8mb4
     default-storage-engine = innodb
     #default-authentication-plugin = mysql_native_password
-    authentication_policy = mysql_native_password
+    authentication-policy = mysql_native_password
     lower-case-table-names = 1
-
-    [client]
-    socket = /home/mortal/instance-$i/mysqld.sock
     EOF
     done
     ```
@@ -155,31 +152,28 @@ categories: ["database"]
     ```bash
     cd ~
     mysql/bin/mysqladmin \
-        --defaults-file=/home/mortal/instance-3301/my.cnf \
+        -S /home/mortal/instance-$i/mysqld.sock \
         password
     mysql/bin/mysqladmin \
-        --defaults-file=/home/mortal/instance-3302/my.cnf \
+        -S /home/mortal/instance-$i/mysqld.sock \
         password
     mysql/bin/mysqladmin \
-        --defaults-file=/home/mortal/instance-3303/my.cnf \
+        -S /home/mortal/instance-$i/mysqld.sock \
         password
     ```
 
 ### 客户端链接
-- 使用本机客户端链接 mysql
+- 使用本机客户端登陆 mysql root 账户
     ```bash
     cd ~
     mysql/bin/mysql \
-        --defaults-file=/home/mortal/instance-3301/my.cnf \
-        -uroot \
+        -S /home/mortal/instance-$i/mysqld.sock \
         -p
     mysql/bin/mysql \
-        --defaults-file=/home/mortal/instance-3302/my.cnf \
-        -uroot \
+        -S /home/mortal/instance-$i/mysqld.sock \
         -p
     mysql/bin/mysql \
-        --defaults-file=/home/mortal/instance-3303/my.cnf \
-        -uroot \
+        -S /home/mortal/instance-$i/mysqld.sock \
         -p
     ```