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IP Addressing, Part II: Scaling IPv4 Across the Internet
How classful addressing gave way to CIDR, and how private addresses and NAT kept the world from running out of IPv4.
Aug 1
•
Franco Fernando
7
2
July 2026
The Anatomy of an IPv4 Address (Part I)
How an IPv4 address is built, what a subnet mask does, and how a device determines the network it belongs to.
Jul 25
•
Franco Fernando
15
3
The Perceptron
How the simplest classification model works, and why it is the building block of every neural network.
Jul 18
•
Franco Fernando
9
4
How the Operating System Runs Many Tasks on One CPU
Multitasking, context switching, and the scheduler that makes it all work.
Jul 11
•
Franco Fernando
19
2
When to repeat yourself
When duplicated code is the better tradeoff.
Jul 4
•
Franco Fernando
28
2
2
June 2026
The Training Trap: Underfitting, Overfitting, and How to Escape Them
A practical guide to the most common problems in machine learning training and the techniques to solve them.
Jun 27
•
Franco Fernando
11
1
Service Mesh vs API Gateway (Part III)
Two patterns that look similar, solve different problems, and work best together.
Jun 20
•
Franco Fernando
14
1
The Depth-First Search Pattern: Exploring Trees and Graphs
How to systematically search through all paths by going as deep as possible before backtracking
Jun 13
•
Franco Fernando
26
1
3
What a Service Mesh Gives You (Part II)
The features that make a service mesh worth the trouble.
Jun 6
•
Franco Fernando
13
2
May 2026
Service Mesh: Why and How It Works (Part I)
How a dedicated infrastructure layer can take over the job of managing service-to-service communication.
May 30
•
Franco Fernando
26
3
The Divide and Conquer: Breaking Problems into Smaller Pieces
How to split a problem into independent subproblems, solve each one, and combine the results
May 23
•
Franco Fernando
11
2
Bloom Filters Explained
Fast lookups with a fraction of the memory, when 'probably yes' is good enough
May 16
•
Franco Fernando
24
2
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