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ping -a 无法解析 Windows 7 客户端上的一台主机的主机名

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ping -a 无法解析 Windows 7 客户端上的一台主机的主机名

ping -a 192.168.99.3不解析主机名vcl.nailit.lab，但解析网络上的其他主机名，如pfsense.nailit.lab。

nslookup vcl.nailit.lab并ping vcl.nailit.lab正常工作。查看输出：

C:\Users\Administrator.NAILIT>ping -a 192.168.99.3

Pinging 192.168.99.3 with 32 bytes of data:
Reply from 192.168.99.3: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.99.3:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Administrator.NAILIT>ping vcl.nailit.lab

Pinging vcl.nailit.lab [192.168.99.3] with 32 bytes of data:
Reply from 192.168.99.3: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.99.3:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms


C:\Users\Administrator.NAILIT>nslookup vcl.nailit.lab
Server:  UnKnown
Address:  192.168.99.13

Name:    vcl.nailit.lab
Address:  192.168.99.3

C:\Users\Administrator.NAILIT>ping -a 192.168.99.1

Pinging pfsense.nailit.lab [192.168.99.1] with 32 bytes of data:
Reply from 192.168.99.1: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.99.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms**

DNS 记录似乎没问题 - pfsense 和 vcl 相同。DNS 在 MS Server 2012 上

ping -a 究竟如何解析主机名？为什么除了 'ping -a 192.168.99.3' 之外的所有命令都正常工作？

答案1

ping -a 究竟如何解析主机名？

这称为反向 DNS。正向 DNS 将名称解析为 IP 地址。反向 DNS 将 IP 地址解析为名称。当您ping -a 1.2.3.4在计算机中输入时，它会发出 DNS 查询PTR 4.3.2.1.in-addr.arpa。PTR 代表指针记录。

为什么除了‘ping -a 192.168.99.3’之外的所有操作都正常工作？

我的直觉告诉我，您缺少该 IP 地址的 PTR 记录。在您的 DNS 服务器上，您应该看到所谓的反向查找区域，如168.192.in-addr.arpa。那里应该有该网络上所有设备的 PTR 记录。Windows 设备通常会尝试注册自己的正向和反向 DNS 记录，但如果缺少整个反向查找区域，它们就无法这样做。

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