I have a network that is connected to the internet via an modem using a DDR (dial-on-demand-routing) connection. The connection works fine except for the following: An NT server on the network keeps contacting one of the DNS root servers and this brings the link up all the time. The idle-timeout is 20 mins and I suspect from the logs that it is doing it very frequently because there have been 384 times the connection has gone up in the last two weeks (ouch, that will be a big phone bill). The NT server is running a secondary DNS server. There is one Linux primary DNS and another Linux secondary server. The Linux servers only try to contact the root servers when they cannot resolve an address locally. Since the internet connection is not used very often so I would only expect this to be 4 or 5 times a week. Since finding the problem I have removed the NT DNS's address from all local machines so nothing should be asking it to resolve a name, yet it still insists on contacting the root server so frequently. Does anyone know what the NT DNS wants to do this and why the Linux DNS's only look when they have to ? If I could get rid of the NT DNS I would but we need it when we are doing upgrades to the Linux machines. Matt -- SLUG - Sydney Linux Users Group Mailing List - http://www.slug.org.au To unsubscribe send email to [EMAIL PROTECTED] with unsubscribe in the text
