官网安装教程地址：http://nginx.org/en/linux_packages.html#RHEL-CentOS
官网描述如下
RHEL/CentOS Install the prerequisites: sudo yum install yum-utils To set up the yum repository, create the file named /etc/yum.repos.d/nginx.repo with the following contents: [nginx-stable] name=nginx stable repo baseurl=http://nginx.org/packages/centos/$releasever/$basearch/ gpgcheck=1 enabled=1 gpgkey=https://nginx.org/keys/nginx_signing.key [nginx-mainline] name=nginx mainline repo baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/ gpgcheck=1 enabled=0 gpgkey=https://nginx.org/keys/nginx_signing.key By default, the repository for stable nginx packages is used. If you would like to use mainline nginx packages, run the following command: sudo yum-config-manager --enable nginx-mainline To install nginx, run the following command: sudo yum install nginx When prompted to accept the GPG key, verify that the fingerprint matches 573B FD6B 3D8F BC64 1079 A6AB ABF5 BD82 7BD9 BF62, and if so, accept it.
第一步：sudo yum install yum-utils
第二步：
在路径/etc/yum.repos.d/nginx.repo，新增文件nginx.repo
在文件中写入
[nginx-stable] name=nginx stable repo baseurl=http://nginx.org/packages/centos/$releasever/$basearch/ gpgcheck=1 enabled=1 gpgkey=https://nginx.org/keys/nginx_signing.key [nginx-mainline] name=nginx mainline repo baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/ gpgcheck=1 enabled=0 gpgkey=https://nginx.org/keys/nginx_signing.key
因为linux菜鸟，新增文件这些命令也记录一下
cd cd /etc/yum.repos.d sudo touch nginx.repo sudo vi nginx.repo 复制粘贴上述内容，按esc，输入:wq 如此文件新增完成
第三步：sudo yum install nginx
打开浏览器，输入localhost，如果出现以下页面，则说明已经按照运行成功
原文：https://www.cnblogs.com/rukawafans/p/11193088.html