CentOS 7.0编译安装配置mysql-5.6.20，centosmysql-5.6.20
首先centos7 已经不支持mysql，因为收费了你懂得，所以内部集成了mariadb，而安装mysql的话会和mariadb的文件冲突，所以需要先卸载掉mariadb，以下为卸载mariadb步骤。
#列出所有被安装的rpm package
rpm -qa | grep mariadb
#卸载
rpm -e mariadb-libs-5.5.37-1.el7_0.x86_64
错误：依赖检测失败：
libmysqlclient.so.18()(64bit) 被 (已安裝) postfix-2:2.10.1-6.el7.x86_64 需要
libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) postfix-2:2.10.1-6.el7.x86_64 需要
#强制卸载，因为没有--nodeps
rpm -e --nodeps mariadb-libs-5.5.37-1.el7_0.x86_64
说明：
操作系统：CentOS 7.0 64位
MySQL版本：mysql-5.6.20
MySQL安装目录：/usr/local/mysql
MySQL数据库存放目录：/data/mysql
准备篇：
一、配置好IP、DNS 、网关，确保使用远程连接工具能够连接服务器，服务器yum命令可以正常使用
二、配置防火墙，开启3306端口
vi /etc/sysconfig/iptables #编辑
-A RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT #允许3306端口通过防火墙
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特别提示：很多网友把这两条规则添加到防火墙配置的最后一行，导致防火墙启动失败，正确的应该是添加到默认的22端口这条规则的下面
添加好之后防火墙规则如下所示：
<ol class="linenums"><li class="L0"><span class="pun">**********************************************************************************</span></li><li class="L1"><span class="com"># Firewall configuration written by system-config-securitylevel</span></li><li class="L2"><span class="com"># Manual customization of this file is not recommended.</span></li><li class="L3"><span class="pun">*</span><span class="pln">filter</span></li><li class="L4"><span class="pun">:</span><span class="pln">INPUT ACCEPT </span><span class="pun">[</span><span class="lit">0</span><span class="pun">:</span><span class="lit">0</span><span class="pun">]</span></li><li class="L5"><span class="pun">:</span><span class="pln">FORWARD ACCEPT </span><span class="pun">[</span><span class="lit">0</span><span class="pun">:</span><span class="lit">0</span><span class="pun">]</span></li><li class="L6"><span class="pun">:</span><span class="pln">OUTPUT ACCEPT </span><span class="pun">[</span><span class="lit">0</span><span class="pun">:</span><span class="lit">0</span><span class="pun">]</span></li><li class="L7"><span class="pun">:</span><span class="pln">RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln"> </span><span class="pun">[</span><span class="lit">0</span><span class="pun">:</span><span class="lit">0</span><span class="pun">]</span></li><li class="L8"><span class="pun">-</span><span class="pln">A INPUT </span><span class="pun">-</span><span class="pln">j RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT</span></li><li class="L9"><span class="pun">-</span><span class="pln">A FORWARD </span><span class="pun">-</span><span class="pln">j RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT</span></li><li class="L0"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">i lo </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L1"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">p icmp </span><span class="pun">--</span><span class="pln">icmp</span><span class="pun">-</span><span class="pln">type any </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L2"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">p </span><span class="lit">50</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L3"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">p </span><span class="lit">51</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L4"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">p udp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">5353</span><span class="pln"> </span><span class="pun">-</span><span class="pln">d </span><span class="lit">224.0</span><span class="pun">.</span><span class="lit">0.251</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L5"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">p udp </span><span class="pun">-</span><span class="pln">m udp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">631</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L6"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">-</span><span class="pln">m tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">631</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L7"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">m state </span><span class="pun">--</span><span class="pln">state ESTABLISHED</span><span class="pun">,</span><span class="pln">RELATED </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L8"><span ><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">m state </span><span class="pun">--</span><span class="pln">state NEW </span><span class="pun">-</span><span class="pln">m tcp </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">3306</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></span></li><li class="L9"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">m state </span><span class="pun">--</span><span class="pln">state NEW </span><span class="pun">-</span><span class="pln">m tcp </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">22</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span></li><li class="L0"><span class="pun">-</span><span class="pln">A RH</span><span class="pun">-</span><span class="typ">Firewall</span><span class="pun">-</span><span class="lit">1</span><span class="pun">-</span><span class="pln">INPUT </span><span class="pun">-</span><span class="pln">j REJECT </span><span class="pun">--</span><span class="pln">reject</span><span class="pun">-</span><span class="kwd">with</span><span class="pln"> icmp</span><span class="pun">-</span><span class="pln">host</span><span class="pun">-</span><span class="pln">prohibited</span></li><li class="L1"><span class="pln">COMMIT</span></li><li class="L2"><span class="pun">**********************************************************************************</span></li></ol>
/etc/init.d/iptables restart #最后重启防火墙使配置生效
三、关闭SELINUX
vi /etc/selinux/config
#SELINUX=enforcing #注释掉
#SELINUXTYPE=targeted #注释掉
SELINUX=disabled #增加
:wq! #保存退出
shutdown -r now #重启系统
四 、系统约定
MySQL安装包存放位置：/usr/local/src
MySQL编译安装位置：/usr/local/mysql
五、下载软件包
1、下载MySQL
http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.20.tar.gz
2、下载cmake（MySQL编译工具）
http://www.cmake.org/files/v2.8/cmake-2.8.10.tar.gz
下载以上两个软件，并上传到/usr/local/src目录
六、安装编译工具及库文件（使用CentOS yum命令安装，安装的比较多，方便以后编译安装php、nginx等）
yum install make apr* autoconf automake curl curl-devel gcc gcc-c++ gtk+-devel zlib-devel openssl openssl-devel pcre-devel gd kernel keyutils patch perl kernel-headers compat* cpp glibc libgomp libstdc++-devel keyutils-libs-devel libsepol-devel libselinux-devel
krb5-devel libXpm* freetype freetype-devel freetype* fontconfig fontconfig-devel libjpeg* libpng* php-common php-gd gettext gettext-devel ncurses* libtool* libxml2 libxml2-devel patch policycoreutils bison
安装篇
一、安装cmake
cd /usr/local/src #进入软件包存放目录
tar zxvf cmake-2.8.10.tar.gz #解压
cd cmake-2.8.10 #进入目录
./configure #配置
make #编译
make install #安装
二、安装MySQL
groupadd mysql #添加mysql组
useradd -g mysql mysql -s /bin/false #创建用户mysql并加入到mysql组，不允许mysql用户直接登录系统
mkdir -p /data/mysql #创建MySQL数据库存放目录
chown -R mysql:mysql /data/mysql #设置MySQL数据库存放目录权限
mkdir -p /usr/local/mysql #创建MySQL安装目录
cd /usr/local/src #进入软件包存放目录
tar zxvf mysql-5.6.10.tar.gz #解压
cd mysql-5.6.10 #进入目录
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DSYSCONFDIR=/etc #配置
#########################################################################
可能会出现错误：Curses library not found. Please install appropriate package
运行一下命令即可
rm -f CMakeCache.txt yum -y install ncurses-devel #########################################################################
make #编译
make install #安装
rm -rf /etc/my.cnf #删除系统默认的配置文件（如果默认没有就不用删除）
cd /usr/local/mysql #进入MySQL安装目录
./scripts/mysql_install_db -user=mysql -basedir=/usr/local/mysql -datadir=/data/mysql #生成mysql系统数据库
ln -s /usr/local/mysql/my.cnf /etc/my.cnf #添加到/etc目录的软连接
cp ./support-files/mysql.server /etc/rc.d/init.d/mysqld #把Mysql加入系统启动
chmod 755 /etc/init.d/mysqld #增加执行权限
chkconfig mysqld on #加入开机启动
vi /etc/rc.d/init.d/mysqld #编辑
basedir=/usr/local/mysql #MySQL程序安装路径
datadir=/data/mysql #MySQl数据库存放目录
service mysqld start #启动
ps -ef|grep mysqld #查看mysql进程
vi /etc/profile #把mysql服务加入系统环境变量：在最后添加下面这一行
export PATH=$PATH:/usr/local/mysql/bin
下面这两行把myslq的库文件链接到系统默认的位置，这样你在编译类似PHP等软件时可以不用指定mysql的库文件地址。
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ln -s /usr/local/mysql/lib/mysql /usr/lib/mysql
ln -s /usr/local/mysql/include/mysql /usr/include/mysql
mkdir /var/lib/mysql #创建目录
ln -s /tmp/mysql.sock /var/lib/mysql/mysql.sock #添加软链接
shutdown -r now #需要重启系统，等待系统重新启动之后继续在终端命令行下面操作
mysql_secure_installation #设置Mysql密码，根据提示按Y 回车输入2次密码
/usr/local/mysql/bin/mysqladmin -u root -p password "root" #或者直接修改密码
service mysqld restart #重启
到此，mysql安装完成！
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