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Before words become arrows
What Words as arrows builds on: why a computer needs words as numbers, when two arrows point the same way, subtracting one arrow from another, and analogies in plain words. About ten minutes.
Froga
Database Isolation Levels: How Concurrent Transactions Avoid Chaos
A look at what can go wrong when several transactions touch a database at the same time, and the isolation levels SQL databases use to control it. For anyone who already knows what a database table is and wants to understand what happens under concurrent load.
Froga
Dört modern web uygulama açığı
Modern web uygulamalarını tehdit eden gerçek açıklar. Her teknoloji kimliğini nasıl ele verir, açık tam olarak neyi mümkün kılar ve nasıl kapatılır. Express, Next.js, Django ve Apache. Küçük bayraklar saklı.
Froga
Zafiyet avına çıkmadan önce
Web güvenliğine yeni başlayanlar için kısa bir sözlük: CVE ve CVSS nedir, istek–yanıt nasıl çalışır, RCE ile kimlik doğrulama/yetkilendirme ne demek, ve sırada hangi lab ve odalar var. Yaklaşık on dakika.
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Compound Interest: How Money Grows Faster Over Time
An introduction to how compound interest works and why it grows savings and loans faster than simple interest. Good for anyone curious about the maths behind saving, borrowing or investing.
Froga
Before the chance machine
What Chance machines builds on: a chance worked out by counting, why all the chances add up to 100%, and when to multiply chances and when to add them. About ten minutes.
Froga