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CIDR and Subnet Mask

Hello All, I would like to share something I learned while preparing for the AWS Certified Advanced Networking - Specialty (ANS-C01) certification.

  • CIDR notation indicates network portion bits, e.g., /18
  • Subnet mask 255.255.192.0 corresponds to /18 CIDR
  • Perform bitwise AND to find subnet network and broadcast addresses

How big is a Git commit? - ratfactor

  • Git stores objects as zlib-compressed data, affecting commit size
  • Packfiles eliminate redundancy, saving space across objects
  • Commit size varies greatly based on file size and compressibility

What's Wrong with GitHub

  • GitHub's licensing practices are vague and confusing
  • It demands nonfree JavaScript for most operations
  • GitHub Copilot raises legal concerns over verbatim text reproduction

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