Title: Development Notes

1 Create dedicated users for PHP-FPM and Nginx

groupadd www

useradd -s /sbin/nologin www -g www -M-s parameter means that login is not allowed, -g parameter is assigned to www group, and -M means that user directory is not created.

2 Install php

CentOS8 comes with PHP7.2 version, which is relatively new. It does not require the help of a third-party source to install it. Moreover, the PHP modules that CentOS8 come with are relatively sufficient. Use the following command to see all PHP-related packages:

yum search php installation module

yum -y install php php-mysqlnd php-gd php-xml php-mbstring php-ldap php-pear php-xmlrpc php-zip php-cli php-fpm php-gd php-mysqlnd php-mbstring php-opcache php-pdo php-json

Configure PHP-FPM

After installation, we need to configure PHP-FPM a little to make it work better with Nginx.

Edit the /etc/php-fpm.d/www.conf file. There are two things to note about in this file. One of them is the user running PHP-FPM and the corresponding user group:

vim /etc/php-fpm.d/www.conf

user=www

group=www

listen=/run/php-fpm/www.sock modify the above file and change the user and group fields from apache to the www we created above.

Another one is the configuration item listen=/run/php-fpm/www.sock. This line configures PHP-FPM running mode and corresponding file directory. We will use it when configuring Nginx later.

start up:

systemctl start php-fpm

Nginx installation and configuration

Installing Nginx is very simple. The CentOS8 system comes with it and only requires one line of commands to install it:

yum install nginx starts:

The basic configuration of systemctl start nginx is also very simple. At this point, we only need to slightly change the Nginx configuration file. The Nginx configuration file is in /etc/nginx/nginx.conf. This configuration file can configure all functions of Nginx, including other configuration files that are also loaded through this file. Open its configuration file, modify the user field, and add a few lines of configuration that may be used:

vim /etc/nginx/nginx.conf

user=www www;

//Turn on gzip compression

gzip on;

//Close the display of Nginx version number

server_tokens off;

//Increase the maximum upload file size

client_max_body_size 8M;

MySQL 8 installation

Install MySQL8 and corresponding tools:

yum install mysql mysql-server starts MySQL server:

systemctl start mysqld

Initialization Command

mysql_secure_installation

Add a separate Nginx configuration file for the website

In fact, each distribution of the Nginx configuration file for placing the website has its own methods, some are placed in /etc/nginx/conf.d/

vim /etc/nginx/conf.d/ln.conf

server

{

listen 80;

listen 8085;

listen [:]:8085;

listen [:]:80;

server_name 192.168.123.98;

index index.php index.html index.htm default.php default.htm default.html;

root /var/www/ln/public; #Run directory

include /etc/nginx/default.d/*.conf;

index index.php index.html index.htm;

location ~ \.(php|phar)(/.*)?$ { #php access configuration

fastcgi_split_path_info ^(.+\.(?php|phar))(/.*)$;

fastcgi_intercept_errors on;

fastcgi_index index.php;

include fastcgi_params;

fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;

fastcgi_param PATH_INFO $fastcgi_path_info;

fastcgi_pass unix:/run/php-fpm/www.sock;

}

#Pseudo-static configuration

location/{

if (!-e $request_filename){

rewrite ^(.*)$ /index.php?s=$1 last; break;

}

}

access_log /var/log/nginx/ln.log;

error_log /var/log/nginx/ln-error.log;

}

The website file directory gives readable and write permissions

chown -R www.www /var/www/ln

FAQ

Cannot parse php file

Configure ln.conf file

include /etc/nginx/default.d/*.conf;

index index.php index.html index.htm;

location ~ \.(php|phar)(/.*)?$ {

fastcgi_split_path_info ^(.+\.(?php|phar))(/.*)$;

fastcgi_intercept_errors on;

fastcgi_index index.php;

include fastcgi_params;

fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;

fastcgi_param PATH_INFO $fastcgi_path_info;

fastcgi_pass unix:/run/php-fpm/www.sock;

}

502

cd /var//run/php-fpm/

chmod -R 777 www.sock

/var/lib/php/session

nginx cannot start

setenforce 0