CentOS 5.5使用yum来安装LAMP(php运行环境)
<p><strong>1. 换源，sohu的相当好用。</strong><br>
1.1备份CentOS-Base.repo<br>
cd /etc/yum.repos.d/<br>
cp CentOS-Base.repo CentOS-Base.repo.bak<br>
1.2替换源<br>
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。<br>
# CentOS-Base.repo<br>
#<br>
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.<br>
# The mirror system uses the connecting IP address of the client and the<br>
# update status of each mirror to pick mirrors that are updated to and<br>
# geographically close to the client. You should use this for CentOS updates<br>
# unless you are manually picking other mirrors.<br>
#<br>
# If the mirrorlist= does not work for you, as a fall back you can try the<br>
# remarked out baseurl= line instead.<br>
#<br>
#<br>
<br>
name=CentOS-$releasever - Base<br>
baseurl=http://mirrors.sohu.com/centos/$releasever/os/$basearch/<br>
gpgcheck=1<br>
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5<br>
#released updates<br>
<br>
name=CentOS-$releasever - Updates<br>
baseurl=http://mirrors.sohu.com/centos/$releasever/updates/$basearch/<br>
gpgcheck=1<br>
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5<br>
#packages used/produced in the build but not released<br>
<br>
name=CentOS-$releasever - Addons<br>
baseurl=http://mirrors.sohu.com/centos/$releasever/addons/$basearch/<br>
gpgcheck=1<br>
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5<br>
#additional packages that may be useful<br>
<br>
name=CentOS-$releasever - Extras<br>
baseurl=http://mirrors.sohu.com/centos/$releasever/extras/$basearch/<br>
gpgcheck=1<br>
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5<br>
#additional packages that extend functionality of existing packages<br>
<br>
name=CentOS-$releasever - Plus<br>
baseurl=http://mirrors.sohu.com/centos/$releasever/centosplus/$basearch/<br>
gpgcheck=1<br>
enabled=0<br>
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5<br>
1.3更新一下。<br>
yum -y update<br><strong>2. 用yum安装Apache,Mysql,PHP.</strong><br>
2.1安装Apache<br>
yum install httpd httpd-devel<br>
安装完成后，用/etc/init.d/httpd start 启动apache<br>
设为开机启动:chkconfig httpd on<br>
2.2 安装mysql<br>
2.2.1 yum install mysql mysql-server mysql-devel<br>
同样，完成后，用/etc/init.d/mysqld start 启动mysql<br>
2.2.2 设置mysql密码<br>
mysql>; USE mysql;<br>
mysql>; UPDATE user SET Password=PASSWORD('newpassword') WHERE user='root';<br>
mysql>; FLUSH PRIVILEGES;<br>
2.2.3 允许远程登录<br>
mysql -u root -p<br>
Enter Password: <your new password><br>
mysql&gt;GRANT ALL PRIVILEGES ON *.* TO '用户名'@'%' IDENTIFIED BY '密码' WITH GRANT OPTION;<br>
完成后就能用mysql-front远程管理mysql了。<br>
2.2.4 设为开机启动<br>
chkconfig mysqld on<br><strong>3. 安装php</strong><br>
yum install php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml<br>
/etc/init.d/httpd start<br><strong>4. 测试一下</strong><br>
4.1在/var/www/html/新建个test.php文件，将以下内容写入，然后保存。<br>
<?<br>
phpinfo();<br>
?><br>
4.2 防火墙配置<br>
a.添加.允许访问端口{21: ftp, 80: http}.<br>
iptables -I RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 21 -j ACCEPT<br>
iptables -I RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT<br>
b.关闭防火墙{不推荐}.<br>
service iptables stop<br>
c.重置加载防火墙<br>
service iptables restart<br>
4.3然后在客户端浏览器里打开http://serverip/test.php，若能成功显示，则表示安装成功。<br>
至此，安装完毕。感慨，yum真是太好用了。</p>
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