I'm having a problem with an internal web server which we host our intranet on which i'm attempting to connect to using a hostname from dyndns.com (FYI the server is not accessible via IP either). We can access the site the web server is running on internally but not remotely. As far as i can tell there is no issue with port forwarding as i can remotely connect to a web server on my windows machine without any issues through the same router. The intranet server is on an old linux box running Mandrake, here are the details:
cat /proc/version > Linux version 18.104.22.168-12mdk (firstname.lastname@example.org) (gcc version 3.4.1 (Mandrakelinux (Alpha 3.4.1-3mdk)) #1 Fri Oct 1 12:53:41 CEST 2004
Its not possible to update the OS so I need to get this working with this setup. As far as i can tell iptables is not even setup so i don think this is the issue. Not sure where to check for connection errors etc tho. I believe this may have been set up previously using a webmin install if that helps in any way.
If you need any more details then please ask.