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请问smartdns的DoH/DoT支持持久连接吗 #1770

Answered by PikuZheng
SeaRat asked this question in Q&A
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没理解你问的啥。由于tcp的四次握手特性,dot和doh在连接成功后可以用这个连接反复收发数据。这个一直就是这样做的,而且在连接断开后可以重新发起连接。但这可能造成阿里上游的一些问题(大流量限制?封端口?)

doh的keepalive是rfc定义的一种edns消息。这个功能在版本43.0.35至43.0.38支持。

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