Install and build a server environment of PHP+Apache+MySQL on CentOS

Yum (full name Yellow dog Updater, Modified) is a Shell front-end package manager in Fedora, RedHat and CentOS. Based on RPM package management, it can automatically download and install RPM packages from the specified server, automatically handle dependency relationships, and install all dependent software packages at once without the tedious downloading and installation again and again.

The following installation process is based on centos, using yum to install and build a server environment of PHP+Apache+Mysql

One: Install MySQL

1. Install yum install mysql mysql-server mysql-devel

2. Start MySQL /etc/init.d/mysqld start start

3. Set the initial MySQL password (Mysql is installed without a password by default, and a warning message will appear when you start MySQL before setting a password)

Password setting method: Assume the password is set to 123456

mysqladmin -u root password 123456

4. Set remote login permissions (if you need to connect to MySQL remotely, perform the following operations)

Log in to MySQL: mysql -u root -p

Enter the password (the password is not visible, just enter it directly)

Use the following command to assign a remote connection account

mysql> GRANT ALL PRIVILEGES ON *.* TO 'username'@'remote address' IDENTIFIED BY 'password' WITH GRANT OPTION;
mysql> FLUSH PRIVILEGES;

2. Install Apache

yum install httpd httpd-devel

After the installation is complete, don't rush to start it. First complete the following PHP installation steps

Three: Install PHP and plug-ins

yum install php php-mysql php-common php-gd php-xml php-mbstring php-ldap php-pear php-xmlrpc

Four: Start Apache

/etc/init.d/httpd start

So far, the server environment of PHP+Apache+Mysql has been built.

Set Apache's httpd service to start at boot: chkconfig httpd on

Set the MySQL service to start at boot: chkconfig mysqld on

After Apache is installed, the default path of the root directory is /var/www/html/. You can create a PHP file such as index.php in this directory and enter the code:

<?php phpinfo(); ?>

Use a browser to access the server IP. If the configuration is successful, you can see the following page:

If there are no abnormalities in the above steps, but the page cannot be accessed, please check the firewall policy while ensuring that the address you entered is correct.

The following is a simple method to determine whether port 80 is blocked by the firewall.

service iptables stop (it is not recommended to disable the firewall policy after the server is put into use): service iptables stop

After the firewall service is disabled, please try again to see if you can access the server normally.

Summarize

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