We had a problem the other day when we lost power on our external DNS server. Users out on the internet were not able to hit our website and do any resolutions to our Secure VPN gateway. When we used the URL address for the website it would not resolve. When we used the VPN Client it would not resolve the name to an address to access the VPN. If we used the IP address it would work.

I was under the impression if my dns server went down anyone trying to resolve address to my domain would get the resolution from their DNS server since this information was cached in their DNS Server.

My forwarders are pointing to DNS server downstream on our Cable modem.

I must have the wrong impression on how DNS is supposed to work. Anyway once we brought the server back up resolutions happened again.

Any ideas thanks