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February 19, 2014

ITIS 2110 Class #12. February 19, 2014. What is DNS main function:. Finding URLs Finding the IP address for a host on a network Finding the host name for an IP address Zone transfers. 29. To Do. HW Mid-term. Labs. Next week: Lab 6 Team Project Must be there for credit. HW.

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February 19, 2014

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  1. ITIS 2110 Class #12 February 19, 2014

  2. What is DNS main function: • Finding URLs • Finding the IP address for a host on a network • Finding the host name for an IP address • Zone transfers 29

  3. To Do • HW • Mid-term

  4. Labs • Next week: • Lab 6 Team Project • Must be there for credit

  5. HW • HW 4 is due March 10

  6. Mid-term • Cover through today’s lecture material • Will cover all the DNS material • Might not include HTTP material • 100 pts • Format • 5 - 15 T/F worth 1 pt each • 5 - 15 Multiple choice worth 1 pt each • 5 - 15 Fill in the Blank worth 1-2 pts each • 2 - 10 Short Answer worth 2-4 pts each • 1 Essay worth 10-20 pts • Exams.htm

  7. Essay question: • Opening paragraph • Ask question to be answered • State a thesis to be substantiated • Support paragraph(s) • 1 or more paragraphs supporting your opening paragraph • Closing paragraph • Restate what you have just argued

  8. DNS recap/further notes • A domain contains one or more zones • Each zone requires at least 2 DNS servers • Due to the importance of name servers • Not because needed to logically work • 1 name server is the primary • 1 or more are secondary • The primary and secondary name servers are authoritative • A zone may contain sub zones • A name server can serve more than one zone • For example, it can be the primary server for one zone and a secondary server for another zone • Name servers should be on separate machines • Preferably in separate areas/networks

  9. Lecture • DNS • DNS Records • Resume slide 24 • HTTP • HTTP

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