Nginx is a lightweight web server, reverse proxy server. Compared with Apache and lighttpd, it has the advantages of less memory and higher stability. Its most common use is to provide reverse proxy services.

1. Installation package compilation and installation
 2.yum source installation
 3. Use docker to install

You need to confirm whether port 80 is open. If it's alicloud, you need to set port group open on the console

#Make sure the firewall is open to port 80 if not
firewall-cmd --permanent --zone=public --add-port=80/tcp 
#Reload
firewall-cmd --reload
#view list
firewall-cmd --list-all

1. Installation package compilation and installation (relatively troublesome)

Installing the PCRCT Library

#Make sure that the operating system is equipped with a GCC compiler collection, a powerful compiler. The compiled languages include: C, C + +, Objective-C, Fortran, Java, etc. Autoconf and Automake tools must also be installed. They are used to automatically create functional makefiles. Currently, most software packages use this tool to generate makefiles, and Nginx is no exception. Under CentOS system, use yum command to install GCC compiler and related tools.

#If not installed using yum
yum -y install gcc gcc-c++ autoconf automake 

#Installing the PCRE Library
#Download cd /usr/local/tools/ngnix in the directory of ngnix 
wget http://www.openssl.org/source/openssl-1.0.1j.tar.gz

#decompression
tar -zxvf openssl-1.0.1j.tar.gz

#Enter and initialize the source code installation (the source code installation generally consists of three steps: configure, make, and make install)
cd openssl-1.0.1j
./config
make && make install 

Install nginx

#Check to see if it is installed
which nginx

#Entry directory
cd /usr/local/tools/ngnix

#Download and unzip nginx 1.8
wget http://nginx.org/download/nginx-1.8.0.tar.gz 
tar -zxvf nginx-1.8.0.tar.gz

#Enter directory compilation and installation
cd nginx-1.8.0 
./configure         
make && make install 

After downloading, the installation package can be deleted and nginx can be started

#Find nginx path
whereis nginx

#After starting nginx (just. / configure will prompt for the start path), you can only enter ip to test the default port 80 of nginx in the browser
/usr/local/nginx/sbin/nginx 

#Reload nginx here. If it is in stop state, an error will be reported
/usr/local/nginx/sbin/nginx -s reload

#Stop it 
/usr/local/nginx/sbin/nginx -s stop

#Compulsory stop
pkill nginx

#Test whether the configuration file is normal
/usr/local/nginx/sbin/nginx -t

#View the default configuration file (according to where is nginx. CONF)
cat nginx.conf  

2. Install nginx (fast) from yum

#yum install nginx
sudo yum install -y nginx

#start nginx
sudo systemctl start nginx.service

#Set power on self start
sudo systemctl enable nginx.service

#The nginx configuration files installed from yum are stored in / etc/nginx/nginx.conf by default
vi /etc/nginx/nginx.conf 

#uninstall
yum remove nginx

start page

This is not the official default interface, maybe because

When you have an epel source and use yum install nginx to install it, you will see Welcome to nginx on Fedora! Because the epel source is maintained by fedora

3. Use Docker to install nginx

#If the server is equipped with docker service, port 80 is already occupied and port 81 is used
docker run -p 81:80 --name nginx -d nginx:latest

#Enter the container to start nginx image
docker exec -it ef6a74b78b75 /bin/bash

#Note whether port 81 is enabled in the test. If it is alicloud, Tencent cloud, etc., pay attention to the security group settings. To ensure the persistence of the configuration file (not disappear due to the restart of the container), you can mount the configuration file or log file in the container on the host computer according to your needs

docker starts nginx

Enter nginx container