# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/vt3i7ha
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詳解 DNS 工作原理｜組成部分｜發展歷史**
寫在前面最近有個同學後臺私信讓我出一個 DNS 的工作原理，面試的時候居然問到了，所以就簡單聊聊 DNS 的工作原理和發展歷史吧！DNS 的核心作用DNS（域名系統，Domain Name System）是互聯網中用於將人類可讀的域名轉換爲機器可識別的 IP 地址的核心服務。域名與 IP 的映射：DNS 本質上是一個分佈式數據庫，存儲了域名與對應 IP 地址的映射關係。DNS 的組成部分域名空間（ ⌘ Read more