目录
一、准备工作
二、安装
三、登录
1、Mysql官网下载Mysql5.7.23 :mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz
2、检查:
3、添加用户组,用专门管理mysql,提高安全 (非必须可以跳过 )
$> groupadd mysql
$> useradd -r -g mysql -s /bin/false mysql
1、解压mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz并移到/usr/local/mysql文件夹下
$> tar -xvf mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz -C /usr/local
$> mv mysql-5.7.23-linux-glibc2.12-x86_64 /usr/local/mysql
$> chown -R mysql:mysql mysql
2、配置mysql的服务,将support-files下的mysql.server 复制到 /etc/init.d/下并取名mysql
$> cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
3、修改/etc/init.d/mysql的参数
$> vi /etc/init.d/mysql
#修改如下内容
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
4、配置mysql的配置文件,其他版本mysql的support-files目录下有默认的配置文件,而5.7.23这个版本没有,需要自己准备,下面提供一份简单基本配置,在/etc/ 下新建my.cnf ,有些可能会提示已经存在,因为默认装的数据库配置文件也在,直接覆盖就行
$> touch /etc/my.cnf
#my.cnf内容如下
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[client]
port = 3306
default-character-set=utf8
[mysqld]
# 一般配置选项
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
character-set-server=utf8
default_storage_engine = InnoDB
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
[mysqld_safe]
log-error=/var/log/mysql/mariadb/mariadb.log
pid-file=/var/run/mysql/mariadb/mariadb.pid
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
5、创建相关目录文件
$> mkdir -p /var/log/mysql/mariadb
$> touch /var/log/mysql/mariadb/mariadb.log
$> chown -R mysql:mysql /var/log/mysql
$> mkdir /var/run/mysql
$> chown -R mysql:mysql /var/run/mysql
$> mkdir /var/lib/mysql
$> chown -R mysql:mysql /var/lib/mysql
$> ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
6、切换到mysql的bin目录执行下面命令初始化数据库
$> rm -rf /usr/local/mysql/data/* (没有/usr/local/mysql/data目录可以不执行)
$> ./mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
7、执行完毕后会自动生成默认的初始密码在执行记录中,注意复制出来
8、启动mysql 服务,下方会提示启动成功字样
$> service mysql start
启动成功:Starting MySQL. SUCCESS!
9、配置一下mysql的环境变量
$> cd /etc/profile.d
$> touch mysql.sh
#mysql.sh添加如下内容
MYSQL_HOME=/usr/local/mysql
PATH=$PATH:$MYSQL_HOME/bin
export MYSQL_HOME PATH
$> source /etc/profile
1、登录
$> mysql -uroot -p
#输入默认的初始密码
2、修改密码
mysql> set password=password('新密码');
3、开启远程登录
3.1、设置mysql的远程登录
# grant all privileges on 库.表 to 用户@'%' identified by '用户密码';
mysql> grant all privileges on *.* to root@'%' identified by 'root密码';
mysql> flush privileges;
3.2、设置防火墙
#设置防火墙
$> firewall-cmd --zone=public --add-port=3306/tcp --permanent
#重新载入
$> firewall-cmd --reload
#查看
$> firewall-cmd --zone= public --query-port=3306/tcp 或 firewall-cmd --zone=public --list-ports
4、设置开机自启(非必须,不影响使用)
$> chkconfig --list
$> chkconfig --add mysql
$> chkconfig mysql on
# 然后使用chkconfig --list命令再次查看自启服务列表,
#会看到mysql的2-5都显示开(有些显示的是 on)如下图,
#说明mysql服务会随机器启动而自动启动