Google Compute实例是否具有稳定的公共DNS名称? [英] Do Google Compute instances have a stable public DNS name?

问题描述

这是一个分为两个部分的问题:

This is a question in two parts:

• GCE实例是否具有稳定的公共DNS名称?例如具有公共IP a.b.c.d的默认DNS名称似乎是d.c.b.a.bc.googleusercontent.com

• 如果是，获取此信息的最佳方法是什么?到目前为止，这是我一直在使用的技巧:

• Do GCE instances have a stable public DNS name? The default DNS name for instance with public IP a.b.c.d seems to be d.c.b.a.bc.googleusercontent.com

• If yes, what's the best way to obtain this information? Here's the hack I've been using thus far:

EXTERNAL_IP=$(curl -s http://bot.whatismyipaddress.com/)
EXTERNAL_DNS=$(dig +short -x ${EXTERNAL_IP})

推荐答案

可以反向查找，对于IP地址，您可能更喜欢使用gcutil https://developers.google.com/compute/docs/gcutil/tips

reverse lookup is okay to do, for IP address you would probably prefer using gcutil https://developers.google.com/compute/docs/gcutil/tips

EXTERNAL_IP = $(gcutil getinstance --format = csv --zone = [您的区域] [您的实例] | grep external-ip | cut -d，" -f 2)

EXTERNAL_IP=$(gcutil getinstance --format=csv --zone=[your_zone] [your_instance] | grep external-ip | cut -d "," -f 2)

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