Broadband / DNS

[GenTrac]

We have this intermitted problem. In the company we are using broadband and also have a local DNS and DHCP server. The problem is that the broadband falls out from time to time very randomly. With "fallout" I mean the link is up and working and if I bypass the CISCO PIX I can surf the web. This shows me broadband working. I have a idea that the problem is with the DNS server. The "." zone shows no entries when this fallout happens. Any idea where I might start to look?

 

[FestusMcShamus]

The "." zone means that you have your dns server set up as a root dns server. Check to see if you have any root hints servers listed. You need to delete that and make sure you have root hints servers listed. When a host queries something on the Internet, your DNS server queries those root hints servers for the addresses that it doesn't know.