navicat連不上阿里雲mysql數據庫

1.阿里雲後臺安全實例,添加開啓mysql端口3306,入方向mysql

2.登陸到mysql, 受權外部可連接sql

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '密碼' WITH GRANT OPTION;centos

FLUSH PRIVILEGES;安全

 

3.修改my.cnf配置[mysqld中]。添加bash

bind-address = 0.0.0.0服務器

 

4.重啓mysql,/etc/init.d/mysql restart ssh

 

打開端口:tcp

iptables -I INPUT -i eth0 -p tcp --dport 3306 -j ACCEPT    #開放3690端口阿里雲

>/etc/init.d/iptables save #保存配置spa

service iptables save  #保存iptable規則

啓動防火牆:

systemctl start firewalld # 啓動,

  systemctl enable firewalld # 開機啓動

  systemctl stop firewalld # 關閉

  systemctl disable firewalld # 取消開機啓動

或者:

三、防火牆檢測
1)iptables --list查看;
2)開啓防火牆3306端口
vi /etc/sysconfig/iptables
-A INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT(容許3306端口經過防火牆)
/etc/init.d/iptables restart(重啓防火牆使配置生效)
3)或者直接關閉防火牆; 參考:http://blog.csdn.net/fjssharpsword/article/details/50973283
centos 7 之後是修改 firewall
systemctl start firewalld # 啓動,

systemctl enable firewalld # 開機啓動

systemctl stop firewalld # 關閉

systemctl disable firewalld # 取消開機啓動

 

 

5.還不行就重啓服務器。

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