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Lessons (9)

• Rust: Ownership, Borrowing and Lifetimes

  … They accept more kinds of input. Lifetimes: proving references don't dangle A lifetime is the region of …

• Pods: Where Your App Actually Runs

  … A pod can have helper containers when they truly need to share the same network and lifetime. A …

• CloudFront: Faster Websites and Safer File Delivery

  … Give versioned assets a long cache lifetime because a new release uses a new filename. Give the HTML …

• Design a File Storage Service

  … Authorize download requests and choose signed-link lifetimes consistent with the revocation promise. Walk through a failure and …

• Secrets, Ephemeral Values, and Least Privilege

  … read contents Short-lived runner credentials Reduced credential lifetime Runner still needs narrow permissions Ephemeral values Omission from …

• Authentication, Authorization & API Security

  … login, leaked tokens MFA, rate limiting, short token lifetimes Injection (SQL, NoSQL, command) ' OR 1=1 -- returns every …

• S3: Store Files Safely

  … Temporary credentials can expire before the requested URL lifetime. Direct upload from a browser Your backend checks the …

• AWS Interview Questions: Clear Answers

  … Choose cache lifetimes and a deployment approach for changed files. Scenario: add private customer orders Now the shop …

• A WhatsApp OTP Is Only Single Use If You Make It So

  … Rate limit and watch for spraying many accounts Lifetime 3 to 10 minutes for login codes Cooldown on …