Networking Forum powered by InfoSec Insitute

All,

This is my first post here so I apologize if it's out of place.

I've got an application running on a Windows 2008 server that I have verified as live on port 8085 at localhost. I've also verified on the server itself that port 8085(and in fact, all ports) are open right now. Despite this, I have no connection to this port on the server. Let me back up a bit an explain the architecture I'm working with.

windows_server >> Switch >> Firewall >> Firewall >> Internet

Everything but my server is managed by my hosting company who is insistent that this is a server issue. Is there a way to find out at what point my connection to port 8085 is failing? I feel like it's stopping at one of the Firewalls but need proof of this theory to get something done about it.

Sincerely,

Bob

Try tracetcp from a host on the Internet. If possible, try a service that you can verify and know is working, then try port 8085 and compare.

Does the switch support any kind of SPAN port or port mirroing? You could try running a packet sniff on everything coming in and out of the server then try to do a port scan to 8085 from a computer outside the firewall. I would also run a tcpdump / wireshark on the computer outside the firewall to see you get any sort of reply.

telnet to port 8085 from outside the firewall. Or if you have access to it run a packet capture look for any issues within the capture.