LNMP environment setup details

At present, the mainstream COMBINATION of PHP development environment is LAMP and LNMP, LAMP and LNMP are short for Linux + Apache/Nginx + Mysql + PHP.

The preparatory work

Install wegt

==wegt== is a free tool that automatically downloads files from the network. It supports HTTP, HTTPS, and FTP, the three most common TCP/IP protocols, and can use HTTP proxy

sudo yum install wget
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Install.net – tools

If the ==ifconfig== command cannot be used during CentOS7 installation, install ==net-tools==. If CentOS6 is installed, no installation is required

sudo yum install net-tools
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CentOS 7.x Replace the yum image

The backup image

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
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Download the new centos-base. repo to /etc/ym.repos.d /

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.ustc.edu.cn/centos/
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Update the yum source

yum -y update
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Install vim

sudo yum install vim
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Configure the display line number

Vim ~/. Vimrc set nu # Enter set nu to save the Settings and exitCopy the code

Install Nginx

Install dependencies

1. Nginx ==nginx== nginx== nginx== nginx== nginx==
2. ==PCRE== is a Perl-compatible regular expression library. Nginx was installed to support the rewrite module with URI rewriting capabilities. Without the PCRE library, Nginx cannot use the rewrite module functionality, which is almost a must for enterprise applications
3. The ==zlib== library provides a variety of compression and decompression methods. Nginx uses zlib to gzip HTTP package contents, so you need to install zlib on Centos
4. ==OpenSSL== is a powerful secure Socket layer cryptographic library that includes major cryptographic algorithms, common key and certificate encapsulation management capabilities, and SSL protocols, and provides rich applications for testing and other purposes. Nginx supports both HTTP and HTTPS (that is, HTTP over SSL), so you need to install the OpenSSL library

Yum -y install GCC GCC c++ zlib zlib-devel # yum -y install pcre pcre-devel openssl openssl-devel Install openSSL dependenciesCopy the code

The VERSION of PCRE installed in yum is relatively low, but it does not affect the use of pcRE

Check the base dependency packages

After the preceding dependencies are installed, run the following command to check whether the dependencies are successfully installed

rpm -qa pcre pcre-devel
rpm -qa zlib zlib-devel
rpm -qa openssl openssl-devel
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Compile and install Nginx

/usr/ SRC = /usr/ SRC To facilitate unified management CD/usr/SRC # switch to the package directory wget nginx https://nginx.org/download/nginx-1.16.1.tar.gz # download the source code package useradd nginx -s Tar ZXVF nginx-1.16.1.tar.gz # unzip nginx-1.16.1 # precompile./configure \ --user=nginx \ --group=nginx \ --prefix=/usr/local/nginx-1.14.1 \ --with-http\_v2_module \ --with-http\_ssl_module \ --with-http\_stub\_status_module make && make install # build and install CD /usr/local ln -s nginx-1.16.1 nginx # create nginx soft linkCopy the code

Installation instructions

--user= user # process user permission --group= group # process user group permission --with-http_stub_status_module # Activation status information --with-http_ssl_module #Copy the code

Configuring environment Variables

Vim /etc/profile # Export PATH=/usr/local/nginx/sbin:$PATH # Insert the following statement at the end of the file source /etc/profile # Save and exit to load the environment variable fileCopy the code

Configure automatic startup upon startup

Vim/etc/rc. Local # Nginx boot from rev/usr/local/Nginx/sbin/Nginx &Copy the code

Nginx common commands

/ usr/local/nginx/sbin/nginx - t # check nginx configuration syntax errors/usr/local/nginx/sbin/nginx # start/usr/local/nginx/sbin/nginx - s stop # to immediately stop/usr/local/nginx/sbin/nginx - # s quit smooth stop/usr/local/nginx/sbin/nginx - # s reload reload/usr/local/nginx/sbin/nginx -s reopen #Copy the code

Service Startup Check

You can run the command to query who occupies port 80

lsof -i :80
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If the command cannot be recognized, you need to install lsof

sudo yum install lsof
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Disabling the Firewall

CentOS6: service iptables stop Temporarily disable chkconfig --level 2345 iptables off Permanently disable CentOS7: Systemctl stop firewalld. Service # Disable firewalld. Service # Disable the automatic firewall startup after the system is startedCopy the code

Mysql installation

Check whether the system has mysql installed

rpm -qa | grep mysql
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If no value is returned, the installation is not complete

Download the mysql repo source

Wget HTTP: / / http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm / / install the RPM package RPM - the ivh mysql-community-release-el7-5.noarch.rpmCopy the code

Repos. D /mysql-community. Repo, /etc/yum.repos. D /mysql-community

Mysql installation

I686 yum install glibc.i686 yum list libstdc++* yum install glibc.i686 yum list libstdc++*Copy the code

To reset your password

Before resetting your password, log in

mysql -u root
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ERROR 2002 (HY000): Can “t connect to local MySQL server through socket ‘/ var/lib/MySQL/MySQL. The sock’ (2), the reason is that the/var/lib/MySQL access problems. Mysql > change the owner of /var/lib/mysql to the current user:

chown -R openscanner:openscanner /var/lib/mysql

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If ==chown: invalid user: “openscanner:openscanner”== error, replace the command, and use ll to view the directory permission list

# chown root /var/lib/mysql/
# ll
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The permission of the mysql directory folder is changed to root

Restart the service:

Mysql -u root -p mysql > use mysql; mysql > update user set password=password('123456') where user='root'; mysql > exit;Copy the code

Restart the mysql service for the Settings to take effect

Add the following command line to add remote connection capability for root. The link password is “123456” (not including the double quotes)

mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "123456";Copy the code

Check the database encoding format and make sure it is UTF-8

show variables like "%char%";
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To change the encoding format to UTF-8, ensure that the SQL file is utF8 and enter the ENCODING in the mysql command line

set names utf8;
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Open port number 3306

Firewalld firewall (centos-7) Run the command and restart:

firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload
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Installing PHP

1. Update the PHP software source in YUM by executing the following commands in sequence

rpm -Uvh https://mirrors.cloud.tencent.com/epel/epel-release-latest-7.noarch.rpm
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rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
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2. Execute the following command to install the packages required for PHP 7.2

yum -y install mod_php72w.x86_64 php72w-cli.x86_64 php72w-common.x86_64 php72w-mysqlnd php72w-fpm.x86_64
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3. Run the following command to start the php-fpm service

systemctl start php-fpm
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4. Run the following command to enable the phP-fpm service to start automatically upon startup

systemctl enable php-fpm
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