1. 登入mysql  

[[email protected] /]# mysql -u root -p  
Enter password:  

2. 使用命令show global variables like 'port';檢視埠號  

mysql> show global variables like 'port';  
+---------------+-------+  
| Variable_name | Value |  
+---------------+-------+  
| port | 3306 |  
+---------------+-------+  
1 row in set (0.00 sec)  

3. 修改埠，

編輯/etc/my.cnf檔案，早期版本有可能是my.conf檔名，增加埠引數，並且設定埠，注意該埠未被使用，儲存退出。  

[[email protected] etc]# vi my.cnf  
[mysqld]  
port=3506  
datadir=/var/lib/mysql  
socket=/var/lib/mysql/mysql.sock  
user=mysql  
# Disabling symbolic-links is recommended to prevent assorted security risks  
symbolic-links=0  
  
[mysqld_safe]  
log-error=/var/log/mysqld.log  
pid-file=/var/run/mysqld/mysqld.pid  
  
"my.cnf" 11L, 261C written  
[

[email protected] etc]#  
  

4. 重新啟動mysql  

  
[[email protected] ~]#systemctl restart mysqld

  
5.再次登入後檢查埠已修改為’3506’.  
  
[[email protected] etc]# mysql -u root -p  
Enter password:  
Welcome to the MySQL monitor. Commands end with ; or \g.  
Your MySQL connection id is 2  
Server version: 5.1.66 Source distribution  
  
Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.  
  
Oracle is a registered trademark of Oracle Corporation and/or its  
affiliates. Other names may be trademarks of their respective  
owners.  
  
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.  
  
mysql> show global variables like 'port';  
+---------------+-------+  
| Variable_name | Value |  
+---------------+-------+  
| port | 3506 |  
+---------------+-------+  
1 row in set (0.00 sec)  
  
mysql>  

1. 登入mysql  

[[email protected] /]# mysql -u root -p  
Enter password:  

2. 使用命令show global variables like 'port';檢視埠號  

mysql> show global variables like 'port';  
+---------------+-------+  
| Variable_name | Value |  
+---------------+-------+  
| port | 3306 |  
+---------------+-------+  
1 row in set (0.00 sec)  

3. 修改埠，

編輯/etc/my.cnf檔案，早期版本有可能是my.conf檔名，增加埠引數，並且設定埠，注意該埠未被使用，儲存退出。  

[[email protected] etc]# vi my.cnf  
[mysqld]  
port=3506  
datadir=/var/lib/mysql  
socket=/var/lib/mysql/mysql.sock  
user=mysql  
# Disabling symbolic-links is recommended to prevent assorted security risks  
symbolic-links=0  
  
[mysqld_safe]  
log-error=/var/log/mysqld.log  
pid-file=/var/run/mysqld/mysqld.pid  
  
"my.cnf" 11L, 261C written  
[[email protected] etc]#  
  

4. 重新啟動mysql  

  
[[email protected] ~]#systemctl restart mysqld

  
5.再次登入後檢查埠已修改為’3506’.  
  
[[email protected] etc]# mysql -u root -p  
Enter password:  
Welcome to the MySQL monitor. Commands end with ; or \g.  
Your MySQL connection id is 2  
Server version: 5.1.66 Source distribution  
  
Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.  
  
Oracle is a registered trademark of Oracle Corporation and/or its  
affiliates. Other names may be trademarks of their respective  
owners.  
  
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.  
  
mysql> show global variables like 'port';  
+---------------+-------+  
| Variable_name | Value |  
+---------------+-------+  
| port | 3506 |  
+---------------+-------+  
1 row in set (0.00 sec)  
  
mysql>