Connecting To Port 80 Locally Is Fine, But Not Remotely
 

Hi:

I have a Linux server with an application configured to listen to port 80. It is up and running. I can reach the default page by logging into the server via putty and using the following command:

curl http://assigned_ip_address:80

However, I cannot reach the same page when attempting to connect via a browser from another server, one that can ping assigned_ip_address just fine. Any suggestions you have would be great. Thanks.

Is port 80 open in the router?

Also, many US ISPs (I don't know about those abroad) block port 80. I know that mine does.

Here is a tool you can use to check port 80.

http://www.canyouseeme.org/

This is resolved. Tricky environment with external IPs, internal IPs, and NATs. It was a firewall issue. Thanks for your help.