1.下载1.18.0版本
        http://nginx.org/en/download.html 

2.配置环境(进入linux)
        <1>yum –y install gcc-c++
        <2>yum install -y pcre pcre-devel
        <3>yum install -y zlib zlib-devel
        <4>yum install -y openssl openssl-devel

3.将tar包放入linux的家目录下

4.解压到/use/local/nginx
        tar -zxvf nginx-1.18.0.tar.gz -C /use/local/

5.进入nginx目录下
        cd /use/local/nginx-1.18.0

6.加载 configure 文件
        ./configure

7.退出目录
        cd .. 到 local 目录当中

8.执行语句
        make && make  install

9.进入 sbin 目录下
        cd /usr/local/ngnix/sbin

10.在 sbin 目录下输入以下
        /usr/local/nginx/sbin/nginx

        显示如下成功
            nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
            nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
            nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
            nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
            nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
            nginx: [emerg] still could not bind()

11.配置安全组

12.开启端口号
        firewall-cmd –permanent –add-port=80/tcp
13.开启端口号
        firewall-cmd –reload