I have configured an FTP server in IIS 6. I can access it by using ftp://localhost/. When I try I accessing it using static IP instead of localhost in a remote location, the page doesn't open. I am using Amazon EC2 instance. I have opened all ports for ICMP so I can ping to the static IP and port 21, 20, 1025-7000 are opened. I can open the page even if I disable the windows firewall. What changes must I make for it to work remotely ?
Iis – Configuring FTP Server in IIS for remote access in Amazon EC2 instance
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I just spent several hours trying to figure out this exact problem - only to discover the IP address of the client computer attempting to connect with the EC2 instance was "seen" by IIS 7.5 as the IP address of the Fortigate router/firewall that the client computer is behind.
I had assumed I would enter in the public IP address of the client computer in the Amazon Security Group - but this was not the case. Go figure.
Try opening the Amazon Security settings wide open and check the IIS 7.5 log files to see if this is happening to you too.
Have a look at your security groups in your AWS Panel
Make sure nothing is blocking it there.
Best Answer
Make sure that the site binding listens on the public IP for FTP, and not just 127.0.0.1. Try testing locally using ftp://{your_public_ip} to confirm that it's setup to listen on that IP. If it works locally but not remotely, then a firewall or proxy server in-between is blocking it.
Also, try briefly to disable the Windows firewall to confirm that it's not fighting with you. Or, better yet, enable logging and check the logs after a failed attempt. That way you don't have to disable the whole firewall.