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DNS (TTL (time to life, Time Clients caching the DNS entry, low -->…
DNS
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second level domain
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controlled by registrars
authority that can register unique second level domains
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A Record
- means Address Record
- point to IP Address
Start Of Authority (SOA) Record
- name of Server
- administrator of the zone
- default TTL (48h usually)
- other stuff
ELBs dont have an IPv4 Address
- have to use DNS to resolve
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