Freud stairs

Ludic Computer Science Books

Among the years, I have seen several books that provide sharp academic knowledge in a ludic way.

 This is a list I gather together :

• Programming for the Puzzled (course)
• Once upon an Algorithm
• Grokking Algorithms
• Algorithmic Puzzles
• Learning Algorithms Through Programming and Puzzle Solving
• If Hemingway Wrote JavaScript
• Mazes for Programmers

• TAOCP 4 (has some of it because of handle puzzles).
• Selected Papers on Fun and Games

https://devwebcl.blogspot.com/2015/10/books-for-programming-challenges-puzzles.html

https://devwebcl.blogspot.com/2018/12/musician-books-entities.html

Memoization Notes

• Memoization... las funciones de verdad que siempre tendran el mismo output... entonces podemos guardarelas para no recalcularlas.
• Fibonacci is a good example
• We need to identify/create the function that can be memoization... and if we are lucky, then we can have a functional function :P that can have memoization.
• Books on Memoization?
• Do thinking! (correct thinking!)
• Combinatorial optimization
• Linear programming
• Dynamic programming

Bastion Hosts on AWS

A bastion host is a server whose purpose is to provide access to a private network from an external network, such as the Internet. Because of its exposure to potential attack, a bastion host must minimize the chances of penetration. For example, you can use a bastion host to mitigate the risk of allowing SSH connections from an external network to the Linux instances launched in a private subnet of your Amazon Virtual Private Cloud (VPC).

https://aws.amazon.com/blogs/security/how-to-record-ssh-sessions-established-through-a-bastion-host/

https://aws.amazon.com/quickstart/architecture/linux-bastion/

Oracle Cloud Infrastructure Foundations Associate

Current certification as an introduction to OCI (Oracle Cloud Infrastructure).

• Dynamic Routing Gateway (DRG, a virtual router): (for on-premises) Fast connect, and IPSec VPN (Site-2-site)
• Internet Gateway (internet)   
• Service Gateway (oci services)
• NAT Gateway: only outbound
• Peering:  Local & Remote VCN peering (diff VCN regions)

https://www.oracle.com/corporate/blog/free-certifications-oracle-oci-autonomous-033020.html

https://www.oracle.com/cloud/

https://www.oracle.com/cloud/compute/

https://www.oracle.com/cloud/iaas/sla.html

https://www.oracle.com/cloud/iaas/faq.html (resilience)

https://amarkalvikatte.wordpress.com/2020/04/04/oracle-cloud-infrastructure-foundations-2020-associate/

Instant Insanity solution

Solution of my youngest son for Insanity:

fasc5c

JMH samples

https://github.com/devwebcl/jmh-samples

JMH
JMH is a Java harness for building, running, and analysing nano/micro/milli/macro benchmarks written in Java and other languages targetting the JVM. [1]

1. http://openjdk.java.net/projects/code-tools/jmh/
2. http://s-j.github.io/getting-started-with-jmh/
3. http://tutorials.jenkov.com/java-performance/jmh.html#the-benchmarks-jar-file
4. https://www.sitepoint.com/which-java-logging-framework-has-the-best-performance/

When something is unfinished

XSS Visual

An interesting list of XSS explained by diagrams:

1. https://blog.scottlogic.com/2016/02/29/Cross-site-scripting.html
2. http://nerv0.blogspot.com/2012/06/xss-persistent-and-reflected.html
3. https://www.thesecuritybuddy.com/vulnerabilities/what-is-xss-or-cross-site-scripting-attack/
4. https://www.wordstream.com/blog/ws/2019/03/07/prevent-xss-attacks
5. https://dejanstojanovic.net/aspnet/2018/march/handling-cross-site-scripting-xss-in-aspnet-mvc/
6. https://medium.com/@marvin.soto/qu%C3%A9-es-xss-b9330eedbc07
7. https://www.wordstream.com/blog/ws/2019/03/07/prevent-xss-attacks
8. https://dev.to/maleta/cors-xss-and-csrf-with-examples-in-10-minutes-35k3
   

AWS Architectures

AWS Architectures examples taken from two crucial blog post, with serverless scope:

https://www.jeremydaly.com/serverless-microservice-patterns-for-aws/

https://medium.com/totalcloudio/aws-dynamodb-for-serverless-microservices-2acbbbff1bca

https://medium.com/@eduardoromero/serverless-architectural-patterns-261d8743020

http://aws-de-media.s3.amazonaws.com/images/DevDays%202018/SER3-Serverless%20Architectural%20Patterns.pdf


Most common architectures I've used:

 

 The Aggregator

 

 The Robust API

 

The Circuit breaker

Continuous stream processor