[Feature] Support TCP inbound for Clash DNS server

[findlayfeng]

Verify steps

• [X] 我已经在 Issue Tracker 中找过我要提出的请求 I have searched on the issue tracker for a related feature request.
• [X] 我已经仔细看过 Documentation 并无法自行解决问题 I have read the documentation and was unable to solve the issue.

Description

dns其实是udp/tcp双协议的，本地服务器却只支持udp。

Possible Solution

No response

[itKelis]

clash的dns支持tcp，这是你的dns服务器问题

[findlayfeng]

我描述的可能有问题，不是支持远端dns的tcp，是支持监听本地的53/tcp端口，我大致翻了一下源代码，的确只监听了 udp

[findlayfeng]

udpAddr, err := net.ResolveUDPAddr("udp", addr) @itKelis

[findlayfeng]

@BirkhoffLee 请重开一下问题，该问题没有得到解决

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 5 days