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Create: 2025-06-07 Update: 2025-07-07 19:37:13

День 2320. #SystemDesign101
Прямой Прокси и Обратный Прокси
На схеме показаны различия между прямым и обратным прокси.

Прямой прокси — промежуточный сервер (программа) в компьютерных сетях, выполняющий роль посредника между пользователем и целевым сервером (при этом о посредничестве могут как знать, так и не знать обе стороны), позволяющий клиентам как выполнять косвенные запросы (принимая и передавая их через прокси-сервер) к другим сетевым сервисам, так и получать ответы.

Использование:
- доступ клиентов локальной сети к Интернет,
- кэширование и сжатие данных,
- защита локальной сети от внешнего доступа,
- обход ограничений,
- блокировка доступа к определённому контенту.

Обратный прокси ретранслирует запросы клиентов из внешней сети на один или несколько серверов, логически расположенных во внутренней сети. При этом для клиента это выглядит так, будто запрашиваемые ресурсы находятся непосредственно на прокси-сервере.

Использование:
- защита и сокрытие серверов локальной сети и их характеристик,
- защита от распространенных веб-атак, таких как DoS или DDoS,
- шифрование и дешифрование SSL-сообщений,
- балансировка нагрузки между несколькими серверами,
- кэширование статического и динамического контента,
- сжатие содержимого для уменьшения времени его загрузки,

Источники:
- https://github.com/ByteByteGoHq/system-design-101
- https://ru.wikipedia.org/wiki/Прокси-сервер
- https://ru.wikipedia.org/wiki/Обратный_прокси

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How to Mute Conversations

With your “Archived Chats” folder finally hidden from view in the chat list area, if the other party decides to send you a new message, the conversation will pop up again in your regular chat feed. To ensure your conversation remains hidden, mute the conversation in question by following the below instructions.Find your “Archived Chats” folder. If you’ve hidden it from view on your mobile, swipe from the top of the app and release to bring back the folder. Long-tap on the conversation in question and select the “Sound” icon at the top. Select “Disable” to stop worrying the conversation will resurface in the app’s main area. On PC, tap on the hamburger menu in the upper-left corner. Select “Archived chats” at the top to get the conversation you hid. Select the chat in question, right-click on it and opt for the “Mute Notifications” option. Hit “Mute forever” or “Mute for…” and select a time frame that suits your needs.

День 2320. #SystemDesign101

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