Nginx moving server to another IP

you need to change or specify a specific listen directive in your site's http and https vhost conf files

Code:

server {
  server_name domain.com www.domain.com;

or

Code:

server {
  listen 80;
  server_name domain.com www.domain.com;

becomes

Code:

server {
  listen IPADDRESSS:80;
  server_name domain.com www.domain.com;

where IPADDRESS is your ip address other than main server IP which is default set if listen directive is not mentioned or an listen directive without an IP address listed

then restart nginx server

details outlined at Module ngx_http_core_module