参考： https://www.cnblogs.com/lich1x/p/11225528.html

(（建议下述安装过程全程root）)

1. 安装PCRE库

   cd /usr/local/
   curl -O ftp://ftp.pcre.org/pub/pcre/pcre2-10.35.tar.gz
   tar -zxvf pcre2-10.35.tar.gz
   cd pcre2-10.35/
   ./configure
   make && make install
   

2. 安装openssl、zlib、gcc依赖

   yum -y install make zlib zlib-devel gcc-c++ libtool openssl openssl-devel
   

3. 安装nginx

   cd /usr/local/
   wget http://nginx.org/download/nginx-1.8.0.tar.gz
   tar -zxvf nginx-1.8.0.tar.gz
   cd nginx-1.8.0 
   ./configure
   make && make install
   

4. Nginx的常用命令
   进入nginx目录
   cd /usr/local/nginx/sbin

   (1)查看nginx版本号
   ./nginx -v
   (2)启动nginx
   ./nginx
   (3)停止nginx
   ./nginx -s stop
   (4)重新加载nginx
   ./nginx -s reload

5. 端口号开放
   (1)查看开放的端口号
   firewall-cmd --list-all
   (2)设置开放的端口号
   firewall-cmd --add-service=http --permanent
firewall-cmd --add-port=80/tcp --permanent
   (3)重启防火墙
   firewall-cmd --reload