Centos安装MYSQL
官网下载安装mysql-server
# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
# rpm -ivh mysql-community-release-el7-5.noarch.rpm
# yum install mysql-community-server
安装成功后重启mysql服务。
# service mysqld restart
初次安装mysql,root账户没有密码。
[root@yl-web yl]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or \g.
….
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.01 sec)
mysql>
设置密码
mysql> set password for 'root'@'localhost' =password('password');
Query OK, 0 rows affected (0.00 sec)
mysql>
配置mysql
1、编码
mysql配置文件为/etc/my.cnf
最后加上编码配置
[mysql]
default-character-set =utf8
这里的字符编码必须和/usr/share/mysql/charsets/Index.xml中一致。
2、远程连接设置
把在所有数据库的所有表的所有权限赋值给位于所有IP地址的root用户。
mysql> grant all privileges on *.* to root@'%'identified by 'password';
如果是新用户而不是root,则要先新建用户
mysql>create user 'username'@'%' identified by 'password';
此时就可以进行远程连接了。
3、防火墙设置
开放防火墙:
service firewalld stop 或者 systemctl stop firewalld.service
然后安装iptables-services:
yum install iptables-services
编辑配置文件:
vim /etc/sysconfig/iptables
在commit之前加一行
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306-j ACCEPT
重启服务
service iptables restart