AWS

 _____ _____ _____ _____ _____ _____ 
|     |  |  |     | __  |  |  |   __|
|   --|     |  |  |    -|    -|   __|
|_____|__|__|_____|__|__|__|__|_____|
@2013~2021                Chorke Inc.

Users

• Root user
• IAM user

CloudWatch

• SNS (Simple Notification Service)
• AMI (Amazon Machine Image)

EC2 Instance

1. EC2 Dashboard » Launch instance
2. Instances     » Launch instance

Elastic IP

For Assign Public IP
CIDR » Classless Inter-Domain Routing
       AWS Support 16 to 32
       IP Before CIDR Block
       Public » Private » Subnet
       Linux Bastion Hosts on AWS

0.0   » Network address
0.1   » Reserved by AWS (VPC router)
0.2   » Reserved by AWS (DNS server)
0.3   » Reserved by AWS (Future use)
0.255 » Network broadcast

${\begin{array}{lcr}\mathbf {No.of\ Host:\ 10.19.83.0/28} \\{\frac {2^{32-24}}{2^{32-28}}}\Rightarrow {\frac {2^{8}}{2^{4}}}\Rightarrow 2^{8-4}\Rightarrow 2^{4}\Rightarrow 16\\{\frac {2^{32-24}}{2^{32-28}}}={\frac {2^{8}}{2^{4}}}=2^{8-4}=2^{4}=16\\\end{array}}$

Linux Bastion

Bastion (Jump Host)
VPC » IGW » {Public, Private, FileServer, DB}
    » Keychain 
    » Key Agent (ssh-add -l, ssh-add)
    » Agent Forwarding (ssh -A [email protected]

Network Interface

ENI » Elastic Network Interface
VPC » Virtual Private Cloud
NAT » (Gateway, Instance)
    » Instance (Disable Source Destination Checking)

Domain Name Service

FQDN (Fully Qualified Domain Name)
DNS  (Domain Name System | Hosted Zones)
     » C NAME (Canonical Name)
     » A Record
DNS  Zone Management
     » Domain CP
        » DNS Zone Editor
        » Recors
           » NS (Name Server)
           » A, AAAA
           » MX
           » CNAME (Canonical Name)
           » TXT (Key=> Value(SPF, DKIM), Ownership Checking)

whois cdn.chorke.org

Scalability

Scalability
HA (High Availability)
Fault Tolerant
     » 501 Not Implemented
     » 502 Gateway Time Out

LB (Load Balancer)
Scaling
     » Resize   » Vertical   » t2.micro => t2.large
     » Quantity » Horizontal » 1 + 2 + 3 + .. + N

DB Clustering
     » MySQL   => Galera
     » PgSQL   => Patroni
     » MongoDB => Shard, Replica

Managed DB
     » AWS => RDS

Stateless|Distributed System » Horizontal Scale
Stateful |Centralized System » Vertical Scale

AWS EC2 API

Making requests to the AWS EC2 API AWS CloudTrail API Reference AWS CloudTrail User Guide AWS EC2 API Reference AWS EC2 Create VPC AWS SDK Java Docs AWS CloudTrail AWS SDKs

References

AWS Organizations terminology and concepts Prepare for Your AWS Certification Exam AWS WAF - Web Application Firewall AWS Certified Cloud Practitioner AWS account ID and its alias LXC - Linux container Amazon CloudWatch Displaying a Formula EC2 Instance Types Vagrant

IAM policies for Billing & Cost Management AWS Identity & Access Management IP Address & CIDR Visualizer Linux Bastion Hosts on AWS What's a Linux container? Calculate 10.19.83.0/24 Calculate 10.20.13.0/24

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Specialty AWS Certified Advanced Networking AWS Certified Machine Learning AWS Certified Alexa Skill Builder AWS Certified Data Analytics AWS Certified Database AWS Certified Security

Associate AWS Certified SysOps Administrator AWS Certified Solutions Architect AWS Certified Developer

Professional AWS Certified Solutions Architect AWS Certified DevOps Engineer

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${\begin{array}{lcr}\mathbf {CHORKE\ ACADEMIA\ INC} \\\mathbb {CHORKE\ ACADEMIA\ INC} \\{\mathsf {CHORKE\ ACADEMIA\ INC}}\\\end{array}}$