CentOS LAMP配置记录
今天用yum方法搭建起了个LAMP环境，中间遇到了很多问题，经过google和各位前辈的帮助，终于将环境搭建起来，现在把完整的步骤记录下来：一、换源，sohu的相当好用。
备份CentOS-Base.repo
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
替换源
用vi打开CentOS-Base.repo，并将内容清空，然后将下面的内容复制进去，并保存。
# CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.You should use this for CentOS updates
# unless you are manually picking other mirrors.
name=CentOS-$releasever - Base
baseurl=http://mirrors.sohu.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5
#released updates
name=CentOS-$releasever - Updates
baseurl=http://mirrors.sohu.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5
#packages used/produced in the build but not released
name=CentOS-$releasever - Addons
baseurl=http://mirrors.sohu.com/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5
#additional packages that may be useful
name=CentOS-$releasever - Extras
baseurl=http://mirrors.sohu.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5
#additional packages that extend functionality of existing packages
name=CentOS-$releasever - Plus
baseurl=http://mirrors.sohu.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5
二、更新一下系统
#yum -y update
三、安装Apache
#yum install httpd
安装完成后，用
/etc/init.d/httpd start
启动apache
设为开机启动
#chkconfig httpd on
四、安装MYSQL
#yum install mysql mysql-server
同样，完成后，用
/etc/init.d/mysqld start
启动mysql
设置MYSQL密码
#/usr/bin/mysqladmin -u root -h localhost password '新密码'
#mysql -u root –p #进入MYSQL，
#Enter Password: <your new password># [输入密码即可]
更新MYSQL密码
mysql> USE mysql;
mysql> UPDATE user SET Password=PASSWORD('newpassword') WHERE user='root';
mysql> FLUSH PRIVILEGES;
允许远程登录
mysql>GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
完成后就能用mysql-front远程管理mysql了。
让MYSQL数据库更安全
mysql -u root -p [此时会要求你输入刚刚设置的密码，输入后回车即可
mysql> DROP DATABASE test; [删除test数据库]
mysql> DELETE FROM mysql.user WHERE user =’’; [删除匿名帐户]
mysql> FLUSH PRIVILEGES; [重载权限]
mysql> exit; [退出MYSQL]
设为开机启动
#chkconfig mysqld on
五、安装PHP
#yum install php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml libmcrypt
#/etc/init.d/httpd start [运行HTTPD]
六、测试一下
在/var/www/html/新建个test.php文件，将以下内容写入，然后保存。
<?php
phpinfo();
?>
然后在客户端浏览器里打开http://IP/test.php，若能成功显示，则表示安装成功。
至此，安装完毕。感慨，YUM真是太好用了。
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