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Deepin Integration]~[v25-Release] Fix: dbus configuration file creation timing after sysuser operation for systemd-resolved by lionheartyu@deepin-community/systemd #12887

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package information | 软件包信息

systemd | 255.2-4deepin24

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deb [trusted=yes] https://ci.deepin.com/repo/obs/deepin:/CI:/TestingIntegration:/test-integration-pr-3730/testing/ ./
deb [trusted=yes] https://ci.deepin.com/repo/obs/deepin:/CI:/TestingIntegration:/test-integration-pr-3730:/commercial/testing/ ./

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在某些虚拟化环境(尤其是 VMware)中,本地 DNS 网关会直接丢弃私有网段的
PTR 反向解析请求而不返回任何响应。这导致 systemd-resolved 触发长时间重试,
使得 route、netstat 和 ssh 等依赖 getnameinfo 的工具出现严重卡顿(30秒以上)。

本补丁针对 192.168.0.0/16 及 IPv4/IPv6 Link-Local 地址的反向解析请求, 将超时时间缩短至 2 秒,在保证本地正常 DNS(如 KVM)可用的同时,实现快速失败,
解决虚拟机环境下的卡顿问题。

Sphere of influence | 影响范围

dns

ADDITIONAL INFORMATION | 额外补充

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