# 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/ct62yzq
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DNS 做服務發現，是坑嗎 ？**
背景分享遇到過這麼一個問題，有童鞋的 Go 程序用 DNS 解析做服務發現（內網用的 CoreDNS 做的域名解析服務器）。比如，內網有個服務域名，對應 7 個後端節點。爲了做服務發現，故障的剔除等服務，在 Client 端對一個給定的域名調用 Go 標準庫的  Resolver.LookupHost  方法來解析 ip 列表。如果解析得到的 ip 列表有變化，那麼在 Client 內對相應的對後 ⌘ Read more