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News
TACACS+ Failover Testing: Rejection, Outage, and Recovery Are Different Tests
17+ min ago (1131+ words) A TACACS+ rollout needs more than a successful login. Test what happens when one server is unavailable, when none can answer, and when the service returns. For each state, check who authenticated the user, what the user could do, and…...
Caesar Cipher Explained: How It Works, Encryption, Decryption, and Examples
28+ min ago (821+ words) If you've ever been curious about how encryption works at a basic level, the Caesar Cipher is a great place to start. It is one of the simplest classical encryption techniques. The idea is straightforward: shift each letter in a…...
Data Modelling, Relationships & Joins in Power BI
29+ min ago (1309+ words) Data modelling is the process of analyzing and defining different data types, as well as the... Tagged with analytics, data, database....
Is Your Site Even Visible to ChatGPT?
39+ min ago (353+ words) You've optimized for Google. Sitemap's clean, Core Web Vitals are green, structured data validates. But when someone asks ChatGPT or Perplexity about your product, you're nowhere in the answer — and a competitor with a worse site is. The likely reason:…...
Ping Works, but HTTPS Doesn't: How to Find What Actually Broke
42+ min ago (851+ words) You've probably seen this before: So the network works, right? Or your browser spins forever. This is one of the most common traps in network troubleshooting: treating a successful ping as proof that "the network is fine." ping answers one…...
5 Microsoft Tutorials: Copilot Model Swapping, DeepSeek on Azure, Rust,.NET 10 RC, AI Agents
39+ min ago (723+ words) This week's Microsoft-ecosystem signal splits into two buckets: AI plumbing you can wire up in an afternoon (model routing, serving open-weight models, agents), and platform shifts with long shelf life (Rust going tier-1,.NET 10 RC). Here are the five tutorials…...
Claude Code Hooks vs Skills vs Subagents: Three Ways to Extend the Agent, and When Each Backfires
42+ min ago (41+ words) I reached for the wrong extension mechanism three times before the difference clicked. Hooks, Skills, Subagents: how each fires, what it costs in tokens, and the failure mode nobody warns you about. Tagged with claudecode, ai, agents, devtools....
Why I Built My Portfolio with Bun + Astro + MDX Instead of a More Complex Stack
37+ min ago (1367+ words) Choosing a stack is a product decision before it is a technical one. This article documents why this portfolio runs on Bun, Astro, and MDX — and, more importantly, the reasoning that led me to turn down more sophisticated alternatives. Nothing…...
Testing email verification flows in Playwright without a mail server
36+ min ago (682+ words) Most signup tests die at the same line. The form submits, the app renders "check your email", and the test has nowhere to go. You can assert the confirmation screen appeared, but everything after it — the code entry, the activated…...
Your primary key shouldn't be in the URL
37+ min ago (169+ words) A sequential integer primary key is a great internal identifier: compact, fast to index, naturally ordered. It is a poor external one, for three reasons: The fix is to stop making one column serve two audiences: Every lookup still has…...