How Internet DNS Names Are Resolved

When DNS name resolution Internet, the entire computer system used Instead of just a single server. There are hundreds Internet servers, known as root servers, Where the general management skills DNS Resolution. Server consists of 13 representatives FQDN of; pre-loaded list of 13 servers Each DNS server. When you register a domain name on the Internet, you pay to be Part of this system.

To learn how the servers to work together to resolve the DNS name; see the following names For name resolution process www.google.com:
1. Discover the workstation IP address for www.microsoft.com local DNS server.
2. If the local DNS server does not have the information, it queries the root DNS service. Com position of the DNS server.
3. The local DNS server DNS server DNS queries .COM microsoft.com position Server.
4. The local DNS server queries microsoft.com DNS server IP address www.google.com.
5. www.microsoft.com IP address is returned to the workstation.
Name resolution process can be modified by cache or forwarding:
§ Cache. After the local DNS server to resolve the DNS name, it caches the results during the time through SOA DNS zone records defined the cost of living. That Live default time is one hour. For subsequent DNS name resolution request considering the cached information.
§ Forwarding. Instead query root server; you can configure a DNS server forwards Another DNS request to the DNS server. For example, the requirement for all Internet names may be Internet service provider (ISP) forwarded to a DNS server.