Updating the root hint

They are configured in the DNS root zone as 13 named authorities, as follows.Operators who manage a DNS recursive resolver typically need to configure a “root hints file”.I need to have these working as I believe the DNS forwarder is the cause of my RBL blacklists not working in exchange therefore client is getting significant spam.

updating the root hint-22

This site tracks the locations of the many root servers, and also provides links to individual operators — some of which provide statistics on root server utilisation.

Somehow I came upon the root hints of my Windows DNS Server today and had a thought to update it. You can find the root hints by right clicking on the server and going to the ‘Root Hints’ tab.

It has no information about IPv6 and recently changed root server IP address.

How do I update my root hints data file under Debian and Red Hat Bind 9 server?

When I updated the server as above and checked this file it hadn’t changed either.

Restarting the DNS service didn’t update the file/ root hints either, so am not sure how this file comes into play).Always download a new version of db.cache once or twice year is sufficient. The best place to get update about this file is bind-users mailing list." ; configuration file of BIND domain name servers). ; ; This file is made available by Inter NIC ; under anonymous FTP as ; file /domain/db.cache ; on server FTP. You can find the root hints on the IANA website – there’s an FTP link to the file containing root hints, as well as an HTTP link (I thought simply entering this in the ‘Copy from Server’ window should suffice but it doesn’t. The window says it wants a server name or IP address so I removed everything above except the server name and then clicked OK. Server: win-dc03.rakhesh.local Address: 10.50.0.22 Non-authoritative answer: (root) nameserver = a.(root) nameserver = b.(root) nameserver = c.(root) nameserver = d.(root) nameserver = e.(root) nameserver = f.(root) nameserver = g.(root) nameserver = h.(root) nameserver = i.(root) nameserver = j.(root) nameserver = k.(root) nameserver = l.(root) nameserver = m.a.internet address = 198.41.0.4 My DNS server doesn’t have an authoritative answer (notice the output above) because it only has the info that’s present with it by default.Or you could click the server name in DNS Manager and select ‘Root Hints’ in the right pane. From here you can add/ remove/ edit root server names and IP addresses.

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