http://jpuyy.com/2013/07/mysql-bind-multi-address.html
mysql綁定多個ip地址
my.cnf中有選項bind-address=127.0.0.1，是說mysql server監聽的是本地發來的請求，如果是任意主機都可以請求，則寫為0.0.0.0，但是這樣又不太安全。監聽某ip，指定此ip地址即可，但是要保證mysql的user中有允許此ip訪問，否則不能對數據庫操作。那么是否可以在配置里只規定幾個ip呢？
簡單直接回答：不可能
請參考：http://dev.mysql.com/doc/refman/5.1/en/server-options.html#option_mysqld_bind-address
The MySQL server listens on a single network socket for TCP/IP connections. This socket is bound to a single address, but it is possible for an address to map onto multiple network interfaces. The default address is 0.0.0.0. To specify an address explicitly, use the –bind-address=addr option at server startup, where addr is an IPv4 address or a host name. If addr is a host name, the server resolves the name to an IPv4 address and binds to that address. The server treats different types of addresses as follows:
If the address is 0.0.0.0, the server accepts TCP/IP connections on all server host IPv4 interfaces.
If the address is a “regular” IPv4 address (such as 127.0.0.1), the server accepts TCP/IP connections only for that particular IPv4 address.
但是有此需求，就會到訪問控制，那么使用防火牆iptables可實現此效果
mysql-server為192.168.1.3，只允許192.168.1.4, 192.168.1.5, 192.168.1.6來訪問3306端口
在my.cnf中
bind-address = 0.0.0.0
在訪問3306端口的主機中，只允許192.168.1.4-6，其他ip一律DROP掉
/sbin/iptables -A INPUT -p tcp -s 192.168.1.4 --dport 3306 -j ACCEPT /sbin/iptables -A INPUT -p tcp -s 192.168.1.5 --dport 3306 -j ACCEPT /sbin/iptables -A INPUT -p tcp -s 192.168.1.6 --dport 3306 -j ACCEPT /sbin/iptables -A INPUT -p tcp --dport 3306 -j DROP
或
/sbin/iptables -A INPUT -p tcp --dport 3306 ! -s 192.168.1.4 -j DROP /sbin/iptables -A INPUT -p tcp --dport 3306 ! -s 192.168.1.5 -j DROP /sbin/iptables -A INPUT -p tcp --dport 3306 ! -s 192.168.1.6 -j DROP
保存防火牆規則
service iptables save
查看INPUT鏈包含3306的規則
echo -e "target prot opt source destination\n$(iptables -L INPUT -n | grep 3306)"
這樣就實現了mysql只允許指定ip訪問。
參考：
http://www.cyberciti.biz/faq/unix-linux-mysqld-server-bind-to-more-than-one-ip-address/