nginx -V，看编译参数
e.g.

```
[docker@NGINX_1 ~]$dx tengine bash
root@NGINX_1:/# nginx -V
Tengine version: Tengine/2.3.1
nginx version: nginx/1.16.0
built by gcc 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)
built with OpenSSL 1.1.0k 28 May 2019
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/etc/nginx/logs/error.log --http-log-path=/etc/nginx/logs/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --with-compat --with-file-aio --with-http_auth_request_module --with-http_addition_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_geoip_module=dynamic --with-http_image_filter_module=dynamic --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_slice_module --with-http_ssl_module --with-http_sub_module --with-http_secure_link_module --with-http_stub_status_module --with-http_v2_module --with-http_xslt_module=dynamic --with-luajit-lib=/usr/local/lib/ --with-luajit-inc=/usr/local/include/luajit-2.1/ --with-lua-inc=/usr/local/include/luajit-2.1/ --sbin-path=/usr/sbin/nginx --with-mail --with-mail_ssl_module --with-threads --with-pcre --with-stream --with-stream_geoip_module=dynamic --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --add-module=./modules/ngx_http_concat_module --add-module=./modules/ngx_http_upstream_check_module --add-module=./modules/ngx_http_proxy_connect_module --add-module=./modules/ngx_devel_kit --add-module=./modules/ngx_http_lua_module
root@NGINX_1:/#
```

拿着这套参数，在新机器上下载最新版的 NGINX，在 configure 阶段填入这套参数就行了。

即做到更新了版本，又完成了配置统一。