bind-address
2017-02-07 10:52
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bind-address
是MYSQL用来监听某个单独的TCP/IP连接,只能绑定一个IP地址,被绑定的IP地址可以映射多个网络接口. 可以是IPv4,IPv6或是主机名,但需要在MYSQL启动的时候指定(主机名在服务启动的时候解析成IP地址进行绑定). 默认是"*"
场景
参数 | 应用场景 |
---|---|
* | 接收所有的IPv4 或 IPv6 连接请求 |
0.0.0.0 | 接受所有的IPv4地址 |
:: | 接受所有的IPv4 或 IPv6 地址 |
IPv4-mapped | 接受所有的IPv4地址或IPv4邦定格式的地址(例 ::ffff:127.0.0.1) |
IPv4(IPv6) | 只接受对应的IPv4(IPv6)地址 |
实验室
1 *mysql> select @@bind_address; +----------------+ | @@bind_address | +----------------+ | * | +----------------+ mysql -utest -p123456 -h127.0.0.1 mysql>
2 IPv4
mysql> select @@bind_address; +----------------+ | @@bind_address | +----------------+ | 192.168.2.10 | +----------------+ mysql -utest -p123456 -h127.0.0.1 ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111) mysql -utest -p123456 -h192.168.2.10 mysql>
3 0.0.0.0
mysql> select @@bind_address; +----------------+ | @@bind_address | +----------------+ | 0.0.0.0 | +----------------+ mysql -utest -p123456 -h127.0.0.1 mysql> mysql -utest -p123456 -h192.168.2.10 mysql>
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