SSH, or Secure Shell, is a network protocol that allows users to securely access and manage devices over a network. It is widely used for remote administration of servers and network devices. SSH provides a secure channel over an unsecured network by using encryption, which protects the data being transmitted from eavesdropping and tampering. Key Read More …
Category: IT Acronyms
SPA – Single-Page Application
Modern Web Architecture and Security This was a new term for me as I started putting together my most recent study guide. SPA, which stands for Single-Page Application. While it sounds like a simple website, an SPA represents a fundamental shift in how web applications function, bringing unique challenges to the world of information security. Read More …
Cloud Formation Example
Imagine you’re a System Administrator tasked with setting up a new environment. Traditionally, this involves a long checklist: log into the console, click through menus to create a VPC, spin up three VMs, configure storage, attach security groups, and set up a load balancer. If you need a second environment for testing, you have to do Read More …
Fine-Tuning an AI
We’ve talked about grounding (giving an AI a textbook to look at) and prompting (giving an AI clear instructions). But sometimes, you don’t just want the AI to look at a book; you want the AI to become an expert in its bones. This is called Fine-Tuning. Generalist vs. Specialist Think of a standard AI Read More …
IaC – Infrastructure as Code
The Recipe for Modern IT In the traditional world of IT, setting up a server was a craft. A sysadmin would log in, click through menus, install packages, and tweak settings until everything worked. I know, I did this job for much of my early career. But much like a chef cooking a complex signature Read More …
OIDC – OpenID Connect
Adding Identity to the Authorization Layer In the journey through information security, you will frequently encounter OAuth 2.0. While OAuth is excellent at authorization, it was never actually designed for authentication. To solve this, OIDC, or OpenID Connect, was created. Think of it this way: OAuth 2.0 is the key to a hotel room, while OIDC Read More …
OCF – Operating Cash Flow
In the technical world, we often distinguish between “allocated memory” and “active throughput.” A system might have plenty of resources reserved, but if the data isn’t actually flowing through the pipes, the system just stalls. In finance, Operating Cash Flow (OCF) is that throughput. It is the actual cash moving into and out of the Read More …
PKCE – Proof Key for Code Exchange
Securing OAuth 2.0 for the Modern Web In the world of Information Security, acronyms often act as gatekeepers to critical concepts. One of the most vital for modern identity management is PKCE (pronounced “pixie”), which stands for Proof Key for Code Exchange. If you are new to the field, you likely know that OAuth 2.0 Read More …
How to Talk to a Robot: A Guide to Prompting
If you think of an AI like a giant, digital brain, Prompting is simply the art of asking the right questions to get the best answers. Again let’s think of the AI as the brilliant but literal intern. If you give a vague instruction, you’ll get a vague result. If you give clear, clever instructions, Read More …
Oracle RAC – Oracle Real Application Clusters
Imagine you’re running a popular online store. On Black Friday, your website gets flooded with millions of visitors all at once, trying to buy products, update their carts, and process payments. If your entire store (database) runs on a single computer, that computer might get overwhelmed, slow down, or even crash. That’s a disaster for Read More …