CentOS

absolutely i am not using example.com. this is for describing my problem

I use my wifi router and forward port 53 and 80 to my centos server.
open localhost return nginx default page but open example.com open router config page.
open example.com form another connection or wifi open website normally.

Hi
I am using bind as dns service and nginx as web service.
my website is accessible through internet but i can't open them locally.
if i open website locally i get router login page.
how can i solve this problem?
Thanks