mysql 安装

centos7 安装mysql

1.源安装 

wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum update
sudo yum install mysql-server
sudo systemctl start mysqld

2.文件安装

#解压
tar -zxvf mysql-5.1.61.tar.gz  
#增加用户和组
groupadd mysql
useradd -s /sbin/nologin -M -g mysql mysql

#安装相关软件
yum -y install gcc
yum -y install gcc-c++
yum -y install ncurses-devel

#编译
./configure --prefix=/usr/local/mysql
make
make install

#拷贝配置及服务
cd /usr/local/mysql/share/mysql/
cp my-medium.cnf /etc/my.cnf
cp mysql.server /etc/init.d/mysqld

#初始化数据库
cd /usr/local/mysql/bin/
./mysql_install_db 

vi /etc/my.cnf
#[mysqld]下增加配置
log-error=/var/log/mysqld.log
default-character-set=utf8
general_log = 1 
general_log_file=/var/log/mysqld_general_log.log

vi /etc/profile
#增加环境变量
export PATH=$PATH:/usr/local/mysql/bin
#环境变量生效
source /etc/profile

#添加文件夹权限
chown mysql:mysql /usr/local/mysql/ -R

#启动服务
service mysqld start

#初始化root密码
mysql -uroot
DELETE FROM mysql.user WHERE user='';
UPDATE mysql.user set password=PASSWORD('cO6Yt6Rs') where User='root';
FLUSH PRIVILEGES;

#授权用户
mysql -uroot -pcO6Yt6Rs
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'58.100.%.%' IDENTIFIED BY 'rqXHR8we'; 
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'125.210.%.%' IDENTIFIED BY 'rqXHR8we'; 
FLUSH PRIVILEGES;