Updating root hint

The root zone's nameservers change over time, don't assume this list is current. NET ; ; last update: Feb 04, 2008 ; related version of root zone: 2008020400 ; ; formerly NS.

Operators who manage a DNS recursive resolver typically need to configure a “root hints file”.

This file contains the names and IP addresses of the root servers, so the software can bootstrap the DNS resolution process.

If your network is not connected to the Internet, you must replace the NS and A records in the cache file with NS and A records for the DNS servers that are authoritative for the root of your private TCP/IP network.

For example, suppose you have created two internal root DNS servers (Internal Root1. You then create a root hints file on other DNS servers in your network, pointing to the internal root DNS servers.

, contains host information that is needed to resolve names outside of the authoritative DNS domains.

It contains the names and addresses of root DNS servers.The Root Trust Anchor, or Key Signing Key, is used by DNSSEC-enabled software to verify the contents of the DNS root zone is valid.It additionally enables a single chain of trust to DNSSEC-enabled top-level domains and beyond.Operators who manage a DNS recursive resolver typically need to configure a "root hints file".This file contains the names and IP addresses of the authoritative name servers for the root zone, so the software can bootstrap the DNS resolution process.If your network is connected to the Internet, the root hints file should contain records for the root DNS servers on the Internet.