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URLの仕組み

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Last updated at Posted at 2018-08-09
  1. URLはネット上の住所
  2. URLを指定することで、相手のPCへファイルを要求する
  3. ポート番号は通信を通す入り口の番号
  4. 「このポート番号はHTTP通信しか受け付けない」という形で制限できる
  5. ポート番号で制限することで悪意のある通信から守れる
  6. URLのドメイン名は相手先PCの場所をさす
  7. ドメイン名をIPアドレスに置き換えることも可能

ウェブカツ!!

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