Nginx server responds to ip but not domain name

I have a server with nginx setup. I want it to respond to the domain testhero.in.th.

So in the config file, in my server block, I set server_name testhero.in.th.

I try to access the site through the domain and I get server took too long to respond. So I use dig to see if the domain is pointing to my server. I get an A record pointing to my server. The ip is 188.166.198.107.

I then enter the ip into the address bar and I can then access the site.

To make sure, I tail the access log for nginx. When I try to access the server using the ip, I see the logs, but when I try to access through the domain, I don't.

What steps should I take to find out why I can't access the site through my domain name?

The best bet is that your client is not contacting the server. The steps are the following :

• double check that there is no dns problem (ie that when you ping testhero.in.th, the IP cobntacted by your client is 188.166.198.107

• check that your browser is not using a proxy for testhero.in.th ( maybe your browser is configured to use a proxy, but has a list of exception that includes the ip of the server).

• clean your browser cache.

• try another browser. wget and curl are good bet.

If everything fails, your can still use tcpdump server side to check if there are incoming connections for your client IP