Technical
Information
for ISPs

Technical ISP Info

Public-RootThe named daemon reads the INAIC root.cache file to find the list of Public-Root name servers (termed ``hints'') which it can query for the current list of root domain name servers.

The named daemon primes its cache using this list rather than using the contents of the root.cache file. The Time-To-Live (TTL) field in the root.cache file is not used. Unlike other records, hints do not expire, as they are not stored in the cache. The named daemon uses the hints to obtain a new list of root servers if the existing list expires.

Here is how to update your hint file in 3 steps
Locate your hint file:

Step Number 1

 Your hint file is called probably something like:
root.hint
root.cache
root.ca
named.hint
Just click on the link below to see the updated hint file.
Replace your current hint file with the new hint file:

Step Number 2

 hint file
Restart your server:

Step Number 3

 Usually by entering the command /usr/sbin/ndc restart, or reboot your computer.
Congratulations, now you have upgraded your Name-Server!
The cache directive in the named.boot file specifies the location of the root.cache file. The latest version of the public root.cache file is available above. Because the contents of this file change periodically, retrieve it regularly to ensure that you have the current version.