Route53

DNS Port - 53






Get a free domain in Freenom:





Records:

A Records:

-- IP to name( can search with DNS names)

PTR Records:

-- Name to IP address ( can search with IPs) (Vice versa)

MX Records:

-- Mail server record:


Cname record:

-- Name to Name

-- LB in AWS

eg:
NS Record (Name Sever record)

-- To identify our domain

SOA Record (State Of Authority)

-- Who authorizing this Domain

SRV

--Service record

--(80 HTTP - 81 HTTP) www.fb.com

NAPTR

-- Voip DNS

TXT

-- verify your domain

CAA

-- certifying your domain

AAAA

-- Ip 6

SPF

-- Sender Policy framework

DS - Delegation signer

-- DNS security


Practicals:






– Connecting AWS and Freenom Domain:



– Site opening with IP:


– Site opening with DNS Name:





– Adding Load Balancer with DNS:





– Test:






SUB-DOMAINS:


  •  creating multiple domains with single domain purchase


Eg:



– Practicals:



–Test:






Routing Policy:


Simple


Simple one


Weighted:


Giving weightage to a particular LB


* Need to provide 2 LB with the same records





Latency:


If one LB gets slow, it moves to another LB


* Need to provide 2 LB with the same records


Failover:

If one LB fails, it moves to another LB


* Need to provide 2 LB with the same records


Geolocation


To particular region:


– Multivalue answer


Can give multiple IP’s in a DNS Record:



















































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