CentOS 5.5 uses yum to install LAMP (php environment) steps to share

cd /etc/yum.repos.d/
cp CentOS-Base.repo CentOS-Base.repo.bak

1.2 replacement source Open CentOS-Base.repo with vi, clear the content, then copy the following content into it and save it.

yum -y update

2. Use yum to install Apache, Mysql, PHP.

2.1 Install Apache

yum install httpd httpd-devel

After the installation is complete, use /etc/init.d/httpd start to start apache Set to start at boot:

chkconfig httpd on

2.2 Install mysql 2.2.1

yum install mysql mysql-server mysql-devel

Similarly, after completion, start mysql with /etc/init.d/mysqld start

2.2.2 Set mysql password

mysql>; USE mysql;
mysql>; UPDATE user SET Password=PASSWORD('newpassword') WHERE user='root';
mysql>; FLUSH PRIVILEGES;

2.2 .3 Allow remote login

mysql -u root -p
Enter Password:
mysql>GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

After completion, you can use mysql-front to remotely manage mysql.

2.2.4 Set to start at boot

chkconfig mysqld on

3. Install php

yum install php php-mysql php-common php-gd php-mbstring php-mcrypt php-devel php-xml
/etc/init.d/httpd start

4. Test installation results 4.1 Create a new test.php file in /var/www/html/, write the following content, and then save it.

phpinfo();
?>

4.2 iptables firewall configuration a. Add. Allow access to ports {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. Turn off the firewall {not recommended}.

service iptables stop

c.Reset loading firewall service iptables restart

4.3 Open http://serverip/test.php in the client browser. If it can be displayed successfully, it means the installation is successful.