Many different fields have studied the need for systems to find equilibrium, from thermodynamics to social sciences. The core concept is that systems tend toward a stable state, but the nature of that stability and the mechanisms for achieving it vary greatly. Equilibrium in Different Systems Thermodynamics and Physics: In this context, equilibrium is a Read More …
Tag: notes
Notes :: Maximum Entropy
Maximum entropy is a principle stating that, given prior constraints or data, the most objective probability distribution is the one with the highest possible entropy, representing the greatest uncertainty and least assumption beyond what is known. This method selects a probability distribution that maximizes uncertainty while still satisfying the constraints of the data, such as Read More …
Notes :: Entropy
Entropy measures the average uncertainty or randomness of a system’s possible outcomes, with higher entropy meaning more uncertainty and unpredictability. For instance, the outcome of a fair coin flip is highly uncertain, reflecting high entropy. Conversely, if a system’s outcomes are highly predictable or one outcome is far more likely than others, its entropy is Read More …
How you build a personal brand
To my kids…….. Personal branding is all about how you present yourself to the world, especially on social media and other online platforms. As you enter your teenage years, it’s a great time to think about how you want others to see you. Your personal brand is shaped by your interests, values, and the way Read More …
Notes :: SCIM Hunting
In the blog post “SCIM Hunting,” the author explores the Security Assertion Markup Language (SAML) and System for Cross-domain Identity Management (SCIM) protocols, which are essential for managing user identities and access in cloud environments. For someone new to IT, understanding these protocols is crucial, as they play a significant role in ensuring secure access Read More …
Notes – AWS Firewall policies
In AWS, AWS Network Firewall policies control firewall rules, defining the monitoring and protection behavior for a firewall by using rule groups and policy default settings. Here’s a more detailed explanation: Firewall Policy: This defines the monitoring and protection behavior for a firewall, specifying how traffic is handled. Rule Groups: These are collections of rules that define the Read More …
A Beginner’s Guide to Containers and Kubernetes in IT
What Are Containers and Kubernetes? Imagine you’re moving. Instead of packing individual items loosely, you put everything for your kitchen into one box, label it, and seal it. That’s essentially what a container does for software. It packages an application and all its dependencies (like libraries and settings) into a single, isolated unit. This ensures Read More …
Notes :: Parallel Processing & Parallel Databases
At its core, parallel processing is about breaking down a large, complex task into smaller, manageable sub-tasks that can be executed simultaneously across multiple processing units or nodes. Think of it like a team project where different members tackle different parts of the assignment at the same time, leading to much quicker completion than if Read More …
Notes :: Pre-Authentication Remote Code Execution
Pre-authentication Remote Code Execution (Pre-auth RCE) is a critical security vulnerability that allows attackers to execute arbitrary code on a remote system without needing to authenticate. This means that anyone with access to the vulnerable system, often exposed online, can exploit this flaw and potentially gain unauthorized control. What is RCE? Remote Code Execution (RCE) Read More …
Notes :: Kubernetes
Key topics include: Traditional vs. Kubernetes Challenges: Comparing the challenges of managing applications in traditional virtual machine environments versus containerized Kubernetes environments. Kubernetes Fundamentals: Defining Kubernetes, its origins, why it’s used, and key concepts like cluster architecture, API server, nodes, pods, and network policies. Kubernetes Security Fundamentals: Discussing control plane and data plane protection, including API protection, encryption, Read More …