Linux下的mysql遠程連接

1.在服務器端開啟遠程訪問

grant all privileges on *.* to 'root'@'%' identified by 'password';flush privileges;

flush privileges;

2.查看是否已開啟

select * from mysql.user where user='root'\G;

​ 出現下圖所示，則已開啟。

3.在阿里雲安全組開放3306端口

4.防火牆開啟3306端口

firewall-cmd --permanent --zone=public --add-port=3306/tcp

#重啟防火牆服務
systemctl restart firewalld.service
#查看防火牆是否開啟
firewall-cmd --list-ports

5.使用navicat連接遠程服務器上的mysql

6.將mysql數據庫查詢設置為不區分大小寫

show variables like "%case%";


+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| lower_case_file_system | OFF   |
| lower_case_table_names | 0     |
+------------------------+-------+

0表示區分大小寫； 1表示不區分大小寫

#使用命令
vim /etc/my.cnf

在[mysqlId]節點下添加lower_case_table_names=1
然后重啟mysql service mysqld restart

+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| lower_case_file_system | OFF   |
| lower_case_table_names | 1     |
+------------------------+-------+

防火牆命令相關

firewall-cmd --list-ports  查看開放的端口
systemctl status firewalld  查看firewalld狀態
systemctl start firewalld   開啟防火牆
firewall-cmd --permanent --zone=public --add-port=3306/tcp  開放3306端口
systemctl restart firewalld.service 重啟防火牆服務