Search Again: Re: root-server information From: Global Homes Webmaster Date: Thursday, June 15, 2000 Time: 10:12:05 am On 06/15/00 at 14:31, Paul Willis wrote: > Hi > > One of our customers had trouble accessing their website. Everything > seemed fine from our end so I was poking around looking at the DNS > with DNS Expert Standard. > > Querying the root servers a through to m one at a time for the domain > only returned the correct response our name servers 6 times out of 13. > > I tried with my own domain 'netro42.com' and got a similar response. > > a.root-servers.net - OK > b.root-servers.net - list of root servers > c.root-servers.net - list of root servers > d.root-servers.net - list of root servers > e.root-servers.net - OK > f.root-servers.net - OK > g.root-servers.net - OK > h.root-servers.net - list of root servers > i.root-servers.net - OK > j.root-servers.net - list of root servers > k.root-servers.net - list of root servers > l.root-servers.net - list of root servers > m.root-servers.net - list of root servers > > Surely they should all return details of our name servers? In addition to what Chris Buxton said, you'll notice that the 'list of root servers' that you get from the b, c, d, h, etc. servers is actually NS records pointing to the servers that have delegation information for the com domain. So a resolver performing a recursive query should duly follow along and send new queries to the listed servers, which should in turn yield NS records for the second level domain you're looking for, and so on down the line until it finds the info you're after. Christopher Bort

Messages In This Thread: root-server information by Paul Willis on Jun 15, 2000 at 6:33:45 am Re: root-server information by Men & Mice Support on Jun 15, 2000 at 9:24:03 am Re: root-server information by Global Homes Webmaster on Jun 15, 2000 at 10:12:05 am