DNS Flashcards
Simple routing
one record w/ multiple IP records
If multiple values -> returned to user in random order
What does geoproximity routing require
Route 53 traffic flow
Multivalue answer policy
same as simple based routing except you get health checks
SOA
Start of authority Stores info -name of server -administrator of zone -current version of data file -default TTL
NS record
Name server record
Used by TLD servers to direct traffic to content DNS server
Gives the SOA
content dns server
contains the authoritative DNS record
authoritative DNS record
A record
a = address
used by a computer to translate a domain name to an IP address
TTL
length that a DNS record is cached on either the resolving server or the users own local PC
CNAME
Used to resolve a domain name to another domain name