centos 6.5 msyql5.6安装

MySQL 安装

安装mysql前需要查询系统中含有的有关mysql的软件。

rpm -qa | grep -i mysql

如下 代表有mysql ，则先进行卸载

mysql-libs-5.1.73-3.el6_5.x86_64 

卸载命令  rpm -e --nodeps mysql-libs

下载mysql地址：http://dev.mysql.com/downloads/mysql/

tar  xvf MySQL-5.6.35-1.el6.x86_64.rpm-bundle.tar

yum install perl

rpm -ivh MySQL-server-5.6.35-1.el6.x86_64.rpm 

rpm -ivh MySQL-client-5.6.35-1.el6.x86_64.rpm

在安装启动mysql 服务

service  mysql start

查看自动生成的root用户 mysql 密码

cat /root/.mysql_secret 

# The random password set for the root user at Fri Dec 23 10:38:10 2016 (local time): OnprW0qIRTiFE5m0

运行/usr/bin/mysql_secure_installation，删除anonymous用户。

# /usr/bin/mysql_secure_installation  --user=mysql

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL

SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we'll need the current

password for the root user.  If you've just installed MySQL, and

you haven't set the root password yet, the password will be blank,

so you should just press enter here.

Enter current password for root (enter for none): (输入自动生成的密码)

OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL

root user without the proper authorisation.

You already have a root password set, so you can safely answer 'n'.

Change the root password? [Y/n]  （是否更换root用户密码 y:是 n 否）

Change the root password? [Y/n] y

New password:

Re-enter new password:

Password updated successfully!

Reloading privilege tables..

... Success!

By default, a MySQL installation has an anonymous user, allowing anyone

to log into MySQL without having to have a user account created for

them.  This is intended only for testing, and to make the installation

go a bit smoother.  You should remove them before moving into a

production environment.

Remove anonymous users? [Y/n] （是否删除匿名用户）

Remove anonymous users? [Y/n] y

... Success!

Normally, root should only be allowed to connect from 'localhost'.  This

ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] （是否禁止root用户远程登录）

Disallow root login remotely? [Y/n] y

... Success!

By default, MySQL comes with a database named 'test' that anyone can

access.  This is also intended only for testing, and should be removed

before moving into a production environment.

Remove test database and access to it? [Y/n] （是否删除test数据库）

Remove test database and access to it? [Y/n] y

- Dropping test database...

... Success!

- Removing privileges on test database...

... Success!

Reloading the privilege tables will ensure that all changes made so far

will take effect immediately.

Reload privilege tables now? [Y/n] （是否重新加载权限表）

Reload privilege tables now? [Y/n] y

... Success!

All done!  If you've completed all of the above steps, your MySQL

installation should now be secure.

Thanks for using MySQL!

Cleaning up...

[root@iZm5e7kgbuwjnnpwbned77Z ~]# chkconfig

abrt-ccpp                    0:off            1:off            2:off            3:off            4:off            5:off            6:off

mysql                        0:off            1:off            2:on             3:on             4:on             5:on             6:off

netconsole                   0:off            1:off            2:off            3:off            4:off            5:off            6:off

 安装完成后可以用mysql客户端进行远程连接了， root用户无法远程登录，

 需要在centos系统登录msyql 

mysql -u root –p

Enter password: 

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 12

Server version: 5.6.35 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

1.进行授权

#ip为192.168.29.1可以用root访问

GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.29.1' IDENTIFIED BY 'root' WITH GRANT OPTION;

#ip为172.5.0.97可以用root访问

GRANT ALL PRIVILEGES ON *.* TO 'root'@'172.5.0.97' IDENTIFIED BY 'root' WITH GRANT OPTION;

#任何主机都可以用root远程访问

GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";   

#刷新权限

flush privileges; 

2.修改表

update user set host = '%' where user = 'root';

flush privileges;