CentOS5.5使用yum来安装LAMP
时间：2010-09-08 来源：→province★
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，
1. 换源，sohu的相当好用。
1.1备份CentOS-Base.repo
cd /etc/yum.repos.d/
cp CentOS-Base.repo CentOS-Base.repo.bak
1.2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.
#
# 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/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-5 1.3更新一下。 yum -y update 2. 用yum安装Apache,Mysql,PHP. 2.1安装Apache yum install httpd httpd-devel 安装完成后，用/etc/init.d/httpd start 启动apache 设为开机启动:chkconfig httpd on 2.2 安装mysql 2.2.1 yum install mysql mysql-server mysql-devel 同样，完成后，用/etc/init.d/mysqld start 启动mysql 2.2.2 设置mysql密码 mysql>; USE mysql;
mysql>; UPDATE user SET Password=PASSWORD('newpassword') WHERE user='root';
mysql>; FLUSH PRIVILEGES;
2.2.3 允许远程登录 mysql -u root -p
Enter Password: <your new password> mysql>GRANT ALL PRIVILEGES ON *.* TO '用户名'@'%' IDENTIFIED BY '密码' WITH GRANT OPTION; 完成后就能用mysql-front远程管理mysql了。 2.2.4 设为开机启动 chkconfig mysqld on 3. 安装php yum install php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml /etc/init.d/httpd start 4. 测试一下 4.1在/var/www/html/新建个test.php文件，将以下内容写入，然后保存。 <? phpinfo(); ?> 4.2 防火墙配置
a.添加.允许访问端口{21: ftp, 80: http}.
iptables -I RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 21 -j ACCEPT
iptables -I RH-Firewall-1-INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT
b.关闭防火墙{不推荐}.
service iptables stop
c.重置加载防火墙
service iptables restart 4.3然后在客户端浏览器里打开http://serverip/test.php，若能成功显示，则表示安装成功。 至此，安装完毕。感慨，yum真是太好用了。
cp CentOS-Base.repo CentOS-Base.repo.bak
1.2替换源 用vi打开CentOS-Base.repo，并将内容清空，然后将下面的内容复制进去，并保存。 # CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$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安装Apache,Mysql,PHP. 2.1安装Apache yum install httpd httpd-devel 安装完成后，用/etc/init.d/httpd start 启动apache 设为开机启动:chkconfig httpd on 2.2 安装mysql 2.2.1 yum install mysql mysql-server mysql-devel 同样，完成后，用/etc/init.d/mysqld start 启动mysql 2.2.2 设置mysql密码 mysql>; USE mysql;
mysql>; UPDATE user SET Password=PASSWORD('newpassword') WHERE user='root';
mysql>; FLUSH PRIVILEGES;
2.2.3 允许远程登录 mysql -u root -p
Enter Password: <your new password> mysql>GRANT ALL PRIVILEGES ON *.* TO '用户名'@'%' IDENTIFIED BY '密码' WITH GRANT OPTION; 完成后就能用mysql-front远程管理mysql了。 2.2.4 设为开机启动 chkconfig mysqld on 3. 安装php yum install php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml /etc/init.d/httpd start 4. 测试一下 4.1在/var/www/html/新建个test.php文件，将以下内容写入，然后保存。 <? phpinfo(); ?> 4.2 防火墙配置
a.添加.允许访问端口{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.关闭防火墙{不推荐}.
service iptables stop
c.重置加载防火墙
service iptables restart 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。 至此，安装完毕。感慨，yum真是太好用了。
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