Pyongwon Lee

[AWS] Aurora

Aurora is an AWS relational database engine that is compatible with MySQL and PostgreSQL.

[J. R. R. Tolkien] The Lord of the Rings – The Fellowship of the Ring

The Lord of the Rings

Title: Part One – The Fellowship of the Ring
Author: J. R. R. Tolkien
Published: 1954
Publisher: HaeperCollinsPublishers
ISBN: 0-00-712970-X

[Isaac Asimov] Prelude to Foundation

Foundation Series

Title: Prelude to Foundation
Author: Isaac Asimov
Published: 1968
Publisher: Bantam Dell
ISBN: 978-0-553-27839-2

[AWS] VPC – NAT Gateway

NAT (Network Address Translation)

NAT remaps source IPs or destination IPs. (It translates private IPs to public IPs and vice versa.)

Static NAT
- A private IP is mapped to a public IP at a 1:1 ratio. (such as Internet Gateway).
Dynamic NAT
- A range of private IPs are dynamically mapped to one or more public IPs (Home router or NAT Gateways).
- To achieve high availably, create one dynamic NAT per AZ.

[Redux] Async in Redux: redux-thunk

In most production web applications, data come from remote services. So you cannot get the data right away. There are a couple of ways to handle async operations in Redux, such as “redux-saga,” “redux-promise,” etc. But the “redux-thunk” is simple and effective for most scenarios.

[AWS] RDS – Deployment & Backups

Using RDS, you are delegating most of the maintenance tasks to AWS. It is important to understand how you can make use of RDS features in order to utilize the service fully.

[Redux] react-redux

Redux is good at state management, and React is for creating UI components. You can connect React and Redux manually, but there is a great tool that makes the task in a simple way. It is the “react-redux” package.

The “react-redux” creates the “Provider” component and the “connect” function.

[Tutorial] Python Basics

Python is one of the most popular general programming languages nowadays.

It is easy to start! Python is the choice of language for new programmers.
You can start with functional programming and then move on to object-oriented programming with Python.
You can do many things with Python – general algorithm, gaming, web, and even machine learning.