DNS: What do all these letters actually mean?!?!

The Domain Name System (DNS) runs the entirety of the internet. Although it is a fundamental piece of how we connect to websites, it is not always clear what DNS is actually doing. This session will go into the various record types for DNS, what they mean— what you need to know when it comes to setting it up.

* A Records
* AAAA Records
* CNAMES
* NS Records
* TXT Records
* MX Records
* SOA Records

Presented at:
NERDSummit 2015 with Ian Carrico

Transcript

1. DNS WHAT DO ALL THESE LETTERS MEAN?!?!?!
2. IAN CARRICO Web Performance Artist, Vox Media iamcarrico.com drupal.org/u/iamcarrico twitter.com/iamcarrico github.com/iamcarrico
3. DUSTIN YOUNSE Support Engineer, Four Kitchens drupal.org/u/milsyobtaf twitter.com/milsyobtaf github.com/milsyobtaf
4. WHAT IS THIS? A AAAA CNAME NS TXT MX SOA
5. A BRIEF HISTORY OF THE INTERNET
6. ARPANET, DECEMBER 1969
7. ARPANET, JUNE 1970
8. ARPANET, DECEMBER 1970
9. ARPANET, SEPTEMBER 1971
10. ARPANET, MARCH 1972
11. ARPANET, AUGUST 1972
12. ARPANET, SEPTEMBER 1973
13. ARPANET, JUNE 1974
14. THE WWW IS BORN
15. 1993 - The World Wide Web Is Created 1993 - AOL Begins Mailing Out Marketing Floppy Disks 1994 - The World Wide Web Goes Commercial 2012 - An Estimated 8.7 Billion Devices Online
16. WE'RE GOING TO NEED A BIGGER BOAT
17. TLDS TOP LEVEL DOMAINS
18. How much does Chinese food weight? About wonton.
19. arpa Infrastructure domain
20. Did you hear the news? FedEx and UPS are merging. They’re going to go by the name Fed-Up from now on.
21. ccTLD .ca .zh .uk
22. What’s Forrest Gump’s password? 1forrest1
23. IDNs Internationalized country code top-level domain рф
24. I asked my dad what his five-year plan was. "I don't have 2020 vision."
25. gTLD Everything else .com .org .net
26. A three-legged dog walks into a bar and says to the bartender, "I’m looking for the man who shot my paw."
27. NEW gTLD .republican .ninja .horse
28. I asked my dad for his best dad joke and he said, "You."
29. TLDs as identity yourname.com university.edu horse.walmart
30. IP ADDRESSES
31. WHAT ARE THEY? An address to get to a house.
32. LOOKING UP The rest of these slides are how to get from a name, to an address.
33. A RECORDS Maps directly to an IPv4
34. Did you hear about the guy who invented Lifesavers? They say he made a mint
35. AAAA RECORDS A records, for IPv6
36. A ham sandwich walks into a bar and orders a beer. Bartender says, "Sorry we don’t serve food here."
37. CNAME Canonical Name record Alias for different names CANNOT be at the Apex
38. Two peanuts were walking down the street. One was a salted.
39. NS RECORDS Name Servers
40. Why do chicken coops only have two doors? Because if they had four, they would be chicken sedans!
41. TXT RECORD Simple. Text. Records.
42. How do you make a Kleenex dance? Put a little boogie in it!
43. MX RECORDS
44. Two guys walk into a bar, the third one ducks.
45. SOA RECORD Start Of (zone of) authority
46. I had a dream that I was a muffler last night. I woke up exhausted!
47. AND MORE...
48. What is Beethoven’s favorite fruit? A ba-na-na-na.
49. Beware of dad jokes this Father's Day… Posted by on Thursday, September 3, 2015 Dad Joke Survivors Nickelodeon
50. THANK YOU
51. QUESTIONS?
52. SLIDES http://iamc.co/howToDNS