安装：
1 环境准备 gcc yum install gcc-c++
pere (解析正则表达式) zlib
zlib库提供了很多种压缩和解压缩的方式，nginx使用zlib对http包的内容进行gzip openssl nginx不仅支持http协议，还支持https（即在ssl协议上传输http）
# yum -y install pcre pcre-devel zlib zlib-devel openssl openssl-devel
2 上传nginx-1.14.1.tar.gz 至home/iotest,并解压( tar -zxvf nginx-1.14.1.tar.gz)
3 copy -r nginx-1.14.1 /usr/local
4 tar -zxvf openssl-1.1.0h.tar.gz /usr/local/src
5 编译 ./configure –user=nginx –group=nginx –prefix=/etc/nginx –sbin-path=/usr/sbin –conf-path=/etc/nginx/nginx.conf –error-log-path=/var/log/nginx/error.log –http-log-path=/var/log/nginx/access.log –http-client-body-temp-path=/var/cache/nginx/client_body –http-proxy-temp-path=/var/cache/nginx/proxy –http-fastcgi-temp-path=/var/cache/nginx/fastcgi –pid-path=/var/run/nginx.pid –lock-path=/var/lock/nginx.lock –with-http_ssl_module –with-http_gzip_static_module –with-http_stub_status_module –with-poll_module –without-select_module –without-http_charset_module –without-http_autoindex_module –without-http_geo_module –without-http_map_module –without-http_referer_module –without-http_empty_gif_module –without-http_browser_module –without-mail_imap_module –without-mail_smtp_module –without-http_scgi_module –without-http_uwsgi_module –without-http_fastcgi_module –with-http_ssl_module –with-md5=/usr/lib64/openssl/ –with-sha1=/usr/lib64/openssl/ –with-openssl=/usr/local/src/openssl-1.1.0h
6 mkdir -p /var/cache/nginx & mkdir -p /etc/nginx & mkdir -p /var/log/nginx
7 make&make install
8 新增nginx用户
useradd -s /sbin/nologin -M nginx (id nginx)
9 启动 /usr/sbin/nginx