Question Summary

Nginx section

Essential Library

yum install -y wget vim gcc gcc-c++ zlib-devel pcre-devel openssl-devel

Compile Options

./configure --with-http_stub_status_module --prefix=/data/wwwroot/nginx-1.17.1 --user=www --group=www --with-http_ssl_module

Matters needing attention

To be added

start-up

.../sbin/nginx

Common Errors

To be added

Troubleshooting ideas

1. nginx-t, the simplest troubleshooting, checks the configuration file syntax of nginx, and returns a message similar to the following if no problem exists

nginx: the configuration file /data/wwwroot/nginx-1.17.1/conf/nginx.conf syntax is ok
nginx: configuration file /data/wwwroot/nginx-1.17.1/conf/nginx.conf test is successful

2. Turn on logging for nginx

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

Just remove the previous'#'

MySQL section

Initialization parameters

bin/mysqld --initialize --user=www --basedir=/data/wwwroot/mysql --datadir=/data/wwwroot/mysql/data

Matters needing attention

The initialized password is saved in mysql_error.log under the log file (this file is the "log-error option" you defined in my.cnf file)

cat log/mysql_error.log | grep password

Modify MySQL password

bin/mysql_secure_installation

start-up

...support-files/mysql.server start  # Official startup script

Common Errors

Question 1: When mysqld initialization is performed, the error message is as follows:

bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

Solution: Install libaio runtime

yum install libaio libaio-devel -y

Question 2: When MySQL is started using the startup script that comes with MySQL, the error message is as follows:

Starting MySQL. ERROR! The server quit without updating PID file (/data/wwwroot/mysql/data/blog.blacklinux.cn.pid).

Solution: Check permissions
1. MySQL Path Permissions

chown -R www.www /data/wwwroot/mysql  # Here is your MySQL directory

2. Check my.cnf file

...
[mysqld]
user = www  # Specify the running user of MySQL
port = 3306
...

PHP section

Essential Library

yum install -y zlib-devel libxml2-devel libjpeg-devel libjpeg-turbo-devel libiconv-devel freetype-devel libpng-devel gd-devel libcurl-devel libxslt-devel

Compile parameters

./configure --prefix=/data/wwwroot/php-7.3.7 --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --enable-fpm --with-fpm-user=www --with-fpm-group=www --with-zlib --with-openssl

Matters needing attention

Use the configuration file that comes with the PHP source package

mv lib/php.ini-production lib/php.ini

Copy the default ungenerated configuration file for PHP

cp -a etc/php-fpm.conf.default etc/php-fpm.conf
cp -a etc/php-fpm.d/www.conf.default etc/php-fpm.d/www.conf

Modify the mysqli.default_socket option in php.ini

mysqli.default_socket = /data/wwwroot/mysql/run/mysql.sock

start-up

.../sbin/php-fpm

Common Errors

Question 1: Error occurred when starting php-fpm. The error message is as follows:

[root@localhost php-7.3.7]# sbin/php-fpm 
[05-Jul-2019 04:01:01] WARNING: Nothing matches the include pattern '/lnmp/php-7.3.7/etc/php-fpm.d/*.conf' from /lnmp/php-7.3.7/etc/php-fpm.conf at line 143.
[05-Jul-2019 04:01:01] ERROR: No pool defined. at least one pool section must be specified in config file
[05-Jul-2019 04:01:01] ERROR: failed to post process the configuration
[05-Jul-2019 04:01:01] ERROR: FPM initialization failed

Solution: Generate www.conf

cp -a etc/php-fpm.d/www.conf.default etc/php-fpm.d/www.conf

Question 2: Fatal error: Uncaught Error: Call to undefined function gzinflate()
Solution: This is because the source code compiles php without zlib, so it is sufficient to bring zlib when recompiling

Database Operation

Take MySQL database as an example

create database wordpress;
grant all on wordpress.* to wordpress@'localhost' identified by '123456';
flush privileges;

Firewall Operations

Add 80 (http) and 443 (https) ports to open

firewall-cmd --zone=public --add-port=80/tcp --permanent
 Command Meaning:
--zone #scope
 --add-port=80/tcp #Add Port in Port/Communication Protocol
 --permanent # is permanently valid and will not expire after restart without this parameter

service iptables restart
systemctl restart firewalld.service

Start-Up Self-Starting

Empowerment

chmod +x /etc/rc.d/rc.local

Add the following to rc.local

/lnmp/nginx/sbin/nginx
/lnmp/mysql/support-files/mysql.server start
/lnmp/php/sbin/php-fpm