CentOS 5.5使用yum來安裝LAMP(php運行環境)

1. 換源，sohu的相當好用。 
1.1備份CentOS-Base.repo 
cd /etc/yum.repos.d/ 
cp CentOS-Base.repo CentOS-Base.repo.bak 
1.2替換源 
用vi打開CentOS-Base.repo，並將內容清空，然後將下面的內容複製進去，並保存。 
# 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. 
# 
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead. 
# 
# 
[base] 
name=CentOS-$releasever - Base 
baseurl=http://mirrors.sohu.com/centos/$releasever/os/$basearch/ 
gpgcheck=1 
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5 
#released updates 
[updates] 
name=CentOS-$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 
[addons] 
name=CentOS-$releasever - Addons 
baseurl=http://mirrors.sohu.com/centos/$releasever/addons/$basearch/ 
gpgcheck=1 
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5 
#additional packages that may be useful 
[extras] 
name=CentOS-$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 
[centosplus] 
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 
1.3更新一下。 
yum -y update 
2. 用yum安裝Apache,Mysql,PHP. 
2.1安裝Apache 
yum install httpd httpd-devel 
安裝完成後，用/etc/init.d/httpd start 啓動apache 
設爲開機啓動:chkconfig httpd on 
2.2 安裝mysql 
2.2.1 yum install mysql mysql-server mysql-devel 
同樣，完成後，用/etc/init.d/mysqld start 啓動mysql 
2.2.2 設置mysql密碼 
mysql>; USE mysql; 
mysql>; UPDATE user SET Password=PASSWORD('newpassword') WHERE user='root'; 
mysql>; FLUSH PRIVILEGES; 
2.2.3 允許遠程登錄 
mysql -u root -p 
Enter Password: <your new password> 
mysql>GRANT ALL PRIVILEGES ON *.* TO '用戶名'@'%' IDENTIFIED BY '密碼' WITH GRANT OPTION; 
完成後就能用mysql-front遠程管理mysql了。 
2.2.4 設爲開機啓動 
chkconfig mysqld on 
3. 安裝php 
yum install php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml 
/etc/init.d/httpd start 
4. 測試一下 
4.1在/var/www/html/新建個test.php文件，將以下內容寫入，然後保存。 
<? 
phpinfo(); 
?> 
4.2 防火牆配置 
a.添加.允許訪問端口{21: ftp, 80: http}. 
iptables -I RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 21 -j ACCEPT 
iptables -I RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT 
b.關閉防火牆{不推薦}. 
service iptables stop 
c.重置加載防火牆 
service iptables restart 
4.3然後在客戶端瀏覽器裏打開http://serverip/test.php，若能成功顯示，則表示安裝成功。 
至此，安裝完畢。感慨，yum真是太好用了。