Domain Name System (DNS)
About DNS
The hierarchical and distributed naming system known as the Domain Name System is used to identify machines that may be accessed over the Internet or other Internet Protocol networks. Domain names are linked to various types of information through resource records in the DNS.
Why is DNS important?
DNS makes sure that the internet is not only user-friendly but also operates effectively, loading whatever material we request in a timely manner. It serves as one of the pillars on which the internet is built. Without it, in order to access the material we desire, we would be forced to memorize extensive lists of numbers (IP addresses).
Who should take the DNS Exam?
- IT Professional
- Domain Name & Addressing Engineer
- Principal Engineer
- Associate Systems Administrator
- Systems Engineer
- Infrastructure Architect
- Software Development Engineer
DNS Certification Course Outline
- DNS Components
- Domain Hierarchy
- Clarifications on the terms "zone", "domain" and zone file
- Record types
- Packet format
- Internet Top-Level Domains
- DNS server roles
- Root servers
- Install dig on windows
- dig usage
- dig trace fun
- Zone file walkthrough
- Bind walkthrough
- Bind delegations
- DNSSec and IPv6 - two topics mentioned just briefly
- DNS Spoofing