S3SS10N Wednesday – DNS Part 2

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S3SS10N Wednesday – DNS Part 2

Published: December 7, 2016 | By: Kelly Handerhan | Views: 4270
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This Weeks S3SS10N Wednesday


This lesson continues where the last left off with Domain Naming System (DNS). Essentially, DNS is a database which has information on the systems and services within an organization and is a collection of records. DNS catalogs every domain and IP address on the internet and location in relation to other domains and web hosts. Participants in this lesson learn about the following DNS records:

  1. Hosts
    • A – FDQN* to IP
    • AAAA – FDQN to IPv6
  2. PTR – IP to FQDN
  3. MX – Mail Exchange
  4. SOA – Start of Authority
  5. NS – Name Servers
  6. SRV – Service Record

*FQDN = Fully Qualified Domain Name

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About This S3SS10N Wednesday's Contributor

Kelly Handerhan
Skilled and certified in CISSP, CASP, and PMP, SME Kelly has taught several courses on Cybrary and is highly praised for her ability to effectively communicate important information in a relate-able and understandable way.
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8 Comments
  1. Thanks a lot for your valuable knowledge sharing.

  2. Very good information structure.
    Great presentation.
    Thanks for your time.

  3. Many thanks for the excellent tutorial.

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