环境:CentOs6.5
服务器:腾讯云
安装依赖包
yum -y install make gcc-c++ cmake bison-devel ncurses-devel libaio libaio-devel perl
下面两个是centos7需要的依赖
//yum install perl-Data-Dumper -y
//yum install net-tools -y
cd /usr/local/src
wget http://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.32-linux2.6-x86_64.tar.gz
tar -zxvf mysql-5.5.32-linux2.6-x86_64.tar.gz
mv mysql-5.5.32-linux2.6-x86_64 /usr/local/mysql
cd /usr/local/mysql
useradd -s /sbin/nologin mysql //创建一个安全的用户
mkdir -p /data/mysql //自定义数据库
chown -R mysql:mysql /data/mysql //修改目录属主
初始化数据库
./scripts/mysql_install_db –user=mysql –datadir=/data/mysql
cp support-files/my-medium.cnf /etc/my.cnf //复制mysql配置文件
cp support-files/mysql.server /etc/init.d/mysqld //生成mysql启动脚本
chmod 755 /etc/init.d/mysqld
vim /etc/init.d/mysqld
修改字段datadir=/data/mysql(这个不写启动不了)
chkconfig –add mysqld //把MySQL服务加入系统
chkconfig mysqld on //设置开机自启
echo “export PATH=$PATH:/usr/local/mysql/bin” >>/etc/profile //加入环境变量
source /etc/profile //更新环境变量
启动MySQL
service mysqld start
mysqladmin -uroot password 123456 //设置mysql管理员密码
mysql -e “grant all privileges on . to root@’%’ identified by ‘123456’” // 给远程连接用户授权:
#mysql -uroot -p123456 //本地登陆
#mysql -uroot -h 118.184.181.22 -P 3310 -p123456 //远程登陆
忘记或更改MySQL用户密码：
vim /etc/my.cnf
[mysqld]
skip-grant-tables
service mysqld restart
mysql -e "use mysql;update user set password=password('123456') where user='root';"
mysql -e "flush privileges;"
#改完之后/etc/my.cnf添加的一行skip-grant-tables要注释掉.
企业有时需要开启独立表空间
- mysql> set global innodb_file_per_table =ON;
- mysql> show variables like '%per_table%';
还有禁止mysql做域名解析
[mysqld]
skip-name-resolve
到此完毕!