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设置 Linux 服务器中 MySQL 允许远程访问
开启 MySQL 远程访问权限: 在linux系统上登陆mysql服务。
-- root 是用户名[root@localhost ~]# mysql -u root -pEnter password: -- 输入密码
创建远程连接 MySQL 的用户:
-- 创建用户、密码及权限范围 第一个 roo t为用户名 @后为适用的主机,‘%’表示所有电脑都可以访问连接,第二个 root 为密码mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘192.168.0.2‘ IDENTIFIED BY ‘root‘ WITH GRANT OPTION; Query OK, 0 rows affected (1.57 sec)-- 立即生效mysql> flush privileges;Query OK, 0 rows affected (0.00 sec)
查看数据库用户:
-- 使用 mysql 库mysql> use mysql;Reading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -ADatabase changed-- 查看用户mysql> SELECT DISTINCT CONCAT(‘User: [‘, user, ‘‘‘@‘‘‘, host, ‘];‘) AS USER_HOST FROM user; +---------------------------------------+| USER_HOST |+---------------------------------------+| User: [root‘@‘127.0.0.1]; || User: [root‘@‘192.168.0.2]; || User: [root‘@‘::1]; || User: [root‘@‘localhost]; || User: [root‘@‘localhost.localdomain]; |+---------------------------------------+5 rows in set (0.00 sec)
创建成功。
查看端口:
mysql> show global variables like ‘port‘;+---------------+-------+| Variable_name | Value |+---------------+-------+| port | 3306 |+---------------+-------+1 row in set (0.01 sec)
开启3306端口:
[root@localhost ~]# vim /etc/sysconfig/iptables# Firewall configuration written by system-config-firewall# Manual customization of this file is not recommended.*filter:INPUT ACCEPT [0:0]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [0:0]-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT-A INPUT -p icmp -j ACCEPT-A INPUT -i lo -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT-A INPUT -j REJECT --reject-with icmp-host-prohibited-A FORWARD -j REJECT --reject-with icmp-host-prohibitedCOMMIT "/etc/sysconfig/iptables" 14L, 543C
注意:一定要加在后两行的前面。
重启防火墙:
[root@localhost ~]# service iptables restartiptables:将链设置为政策 ACCEPT:filter [确定]iptables:清除防火墙规则: [确定]iptables:正在卸载模块: [确定]iptables:应用防火墙规则: [确定]
查看服务器ip地址:
[root@localhost ~]# ifconfigeth0 Link encap:Ethernet HWaddr 00:0C:29:16:F4:E6 inet addr:192.168.0.123 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: hjjj:jjji::iii:oooo:oooo:ioio/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2931 errors:0 dropped:0 overruns:0 frame:0 TX packets:1631 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:322681 (315.1 KiB) TX bytes:266043 (259.8 KiB)lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
连接测试:
设置 Linux 服务器中 MySQL 允许远程访问
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