New Rich Text Document

New Rich Text Document - DNS DNS makes it possible for...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
DNS: DNS makes it possible for clients to access network resources using alphanumeric names rather than pure IP addresses. On the internet there is an extra layer because we prefer to use a FQDN (Fully Qualified Domain Name) such as www.computerperformance.co.uk/ The purpose of DNS is to provide a connection when we type a name. Now that name could refer to a server, a host, a web site, or a UNC path. Zones: Forward Lookup - You know the hostname, DNS tells you the IP address. Forward Lookup zones supply the main DNS mechanism for finding Hosts (A), Name Servers (NS). Reverse Lookup - You know the IP, DNS gives you the hostname. I think of Reverse Lookup as a hackers tool, they can PING a server's IP address and then they use a Reverse Lookup query to discover the hostname Hosts means a simple (A) record that maps a machine name (HostName) to an IP address type "host name" in command prompt DNS Namespace: Hierarchical structure of names that join up to form a FQDN Levels of Namespace 1 Root
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

New Rich Text Document - DNS DNS makes it possible for...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online