使用YUM安裝MySQL 5.5（適用於CentOS6.2/5.8及Fedora 17/16平臺）

目前CentOS/Red Hat (RHEL) 6.2官方自帶的mysql版本爲5.1，mysql5.5已經出來了。

相比mysql5.1,mysql5.5不只在多個方面進行了改進：

 

• 性能上有了很大提高
• 默認存儲引擎更改成InnoDB
• CPU多核處理性能提高
• 複製功能增強，新增半同步複製
• 加強表分區功能
• 等等

本文將指導你如何在CentOS/Red Hat (RHEL) 6.2及Fedora 17/16下安裝最新版本的社區版本mysql。

若是您要升級mysql,請先備份好你的數據及配置文件再行升級。

在CentOS/Red Hat (RHEL) 6.2/5.8及Fedora 17/16下的安裝MySQL 5.5

 

讓咱們開始動手吧。

 

step1. 切換到root用戶

su -
## OR ##
sudo -i

step2. 安裝remi軟件源

 

Fedora平臺

 

## Remi Dependency on Fedora 17, 16, 15
rpm -Uvh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
rpm -Uvh http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm

## Fedora 17 ##
rpm -Uvh http://rpms.famillecollet.com/remi-release-17.rpm

## Fedora 16 ##
rpm -Uvh http://rpms.famillecollet.com/remi-release-16.rpm

## Fedora 15 ##
rpm -Uvh http://rpms.famillecollet.com/remi-release-15.rpm

## Fedora 14 ##
rpm -Uvh http://rpms.famillecollet.com/remi-release-14.rpm

## Fedora 13 ##
rpm -Uvh http://rpms.famillecollet.com/remi-release-13.rpm

## Fedora 12 ##
rpm -Uvh http://rpms.famillecollet.com/remi-release-12.rpm

 

CentOS及Red Hat (RHEL)平臺 

## Remi Dependency on CentOS 6 and Red Hat (RHEL) 6 ##
rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-7.noarch.rpm

## CentOS 6 and Red Hat (RHEL) 6 ##
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

## Remi Dependency on CentOS 5 and Red Hat (RHEL) 5 ##
rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm

## CentOS 5 and Red Hat (RHEL) 5 ##
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-5.rpm

 

step3. 查看MySQL版本號

 

Fedora 17, 16, 15, 14, 13, 12

yum --enablerepo=remi list mysql mysql-server

CentOS 6.2/6.1/6/5.8 and Red Hat (RHEL) 6.2/6.1/6/5.8

yum --enablerepo=remi,remi-test list mysql mysql-server

輸出:

Loaded plugins: changelog, fastestmirror, presto, refresh-packagekit
...
remi                                                            | 3.0 kB     00:00
remi/primary_db                                                 | 106 kB     00:00
Available Packages
mysql.i686                               5.5.25-1.fc14.remi                        @remi
mysql-server.i686                        5.5.25-1.fc14.remi

 

step4. 安裝或升級到MySQL5.5.25
Fedora 17, 16, 15, 14, 13, 12

yum --enablerepo=remi install mysql mysql-server

CentOS 6.2/6.1/6/5.8 and Red Hat (RHEL) 6.2/6.1/6/5.8

yum --enablerepo=remi,remi-test install mysql mysql-server

step5. 開啓mysql服務並配置自啓動
Fedora 17/16

systemctl start mysqld.service
systemctl enable mysqld.service

Fedora 15/14/13/12/11, CentOS 6.2/6.1/6/5.8 and Red Hat (RHEL) 6.2/6.1/6/5.8

/etc/init.d/mysqld start
## OR ##
service mysqld start
chkconfig --levels 235 mysqld on

 

step6. MySQL 安全設置

• 設置（修改）root密碼
• 刪除匿名用戶
• 禁用root遠程登陸
• 刪除測試數據庫test
• 重載權限表

要啓用MySQL 安全設置請輸入如下命令

/usr/bin/mysql_secure_installation

 

輸出

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):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

Set 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] 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] 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] 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] Y
 ... Success!

Cleaning up...



All done!  If you\'ve completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!

 

【注】：若是您不想啓動MySQL 安全設置命令，但至少也得修改一下root用戶密碼

 

mysqladmin -u root password [your_password_here]
## 示例##
mysqladmin -u root password myownsecrectpass

step7. 使用密碼鏈接本地數據庫

mysql -u root -p
## OR ##
mysql -h localhost -u root -p

step8. 爲指定數據庫，指定用戶配置指定客戶端（IP）遠程訪問

本示例的配置參數以下

DB_NAME = webdb
USER_NAME = webdb_user
REMOTE_IP = 10.0.15.25
PASSWORD = password123
PERMISSIONS = ALL

1. 建立數據庫 webdb

mysql> CREATE DATABASE webdb;

 
2. 建立用戶webdb_user

mysql> CREATE USER 'webdb_user'@'10.0.15.25' IDENTIFIED BY 'password123';

 
3.  受權 

mysql> GRANT ALL ON webdb.* TO webdb_user@'10.0.15.25';

 
4.  重載權限表  

mysql> FLUSH PRIVILEGES;

step9. 配置防火牆開啓3306端口

1. 修改/etc/sysconfig/iptables 文件:

vi /etc/sysconfig/iptables

2. 在COMMIT以前加入如下內容:

-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT

3. 重啓Iptables:

service iptables restart
## OR ##
/etc/init.d/iptables restart

4. 在客戶機上測試遠程訪問數據庫:

mysql -h dbserver_name_or_ip_address -u webdb_user -p webdb

 

 

 

********************************************
* 做者：葉文濤 
* 連接： 在CentOS/Red Hat (RHEL) 6.2/5.8及Fedora 17/16下的安裝MySQL 5.5

* 源文： Install MySQL 5.5.25 on Fedora 17/16, CentOS/Red Hat (RHEL) 6.2/5.8 ******************轉載請註明來源 ***************