Scriptorium

[AWS] VPC – IGW

Internet Gateway (IGW) is a VPC component that allows communication between resources in the VPC and the internet. It is horizontally scaled, redundant, and highly available.

[Statistics 101] (3) Summarizing Data

Summarizing Categorical Data

The percentage of individuals falling into each category: Pie Graphs
Use crosstabs or two-way tables to display information from 2 categories at once

[AWS] VPC – Subnets and Routing Tables

Subnets are the logic network that you group your resources in a single local network. Communication in and out of a subnet is of critical importance, and a routing table contains the rules on how traffic can be directed.

[AWS] VPC Basics

A VPC(Virtual Private Cloud) is a logically isolated portion of the AWS cloud within a chosen single region. In a VPC, you can define your own network such as IP address range, subnets, route tables, and security settings.

Ludwig Wittgenstein

LUDWIG WITTGENSTEIN (1889 ~ 1951), AUSTRIA

Wittgenstein worked on logic, the philosophy of mathematics, and the philosophy of language. His unique idea of how logical relationship between the world and propositions (or philosophical arguments).

[AWS] Basic Networking

It is important to understand basic network concepts to understand how cloud services work.

[AWS] AWS Networking Fundamentals

Clouding Computing

Cloud computing is the on-demand access to IT resources (compute, storage, and applications) through services. The key characteristics of cloud computing are on-demand, resource pooling, elasticity, broad network access, and measured services with pay as you go.

Benefits of Cloud Computing

Trade Capital Expense for Variable Resource – Only pay what you use
Stop guessing about capacity – Scale with the business needs
Massive economies of scale – Supported by big Cloud providers such as AWS
Increase speed and agility
No need to run and maintain data centers
Go global in minutes

[Robert Nozick] Anarchy, State, and Utopia

Title: Anarchy, State, and Utopia
Author: Robert L. Heilbroner
Published: 1974
Publisher: Basic Books, New York, 2013
ISBN: 978-0-465-05100-7