Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about why the ip displayed by windows and linux ping is different. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

After DNS modifies the corresponding IP of the domain name, the domain name cannot be accessed. I ping the domain name under windows. IP has not changed, but it is still the old IP. I ping the domain name again under linux, and it has been changed. This problem is caused by the long refresh time of the local DNS cache under windows.

First explain what's going on with windows's dns local cache.

When you access a domain name, you don't have to parse it on the DNS server every time. After a visit, the parsing of DNS is cached locally and refreshed at regular intervals according to TTL. The time of this TTL is not fixed, and the new TTL will replace the old TTL when refreshing.

C:UsersAdministrator > ipconfig / displaydns | more / / displays DNS local cache Windows IP configuration test.XXX.com-record name. . . . . . . : test.XXX.com / / domain name record type. . . . . . . 1 survival time. . . . . . . : 86400 / / TTL time data length. . . . . . . Part 4. . . . . . . . . Answer A (host) record. . . . : 114.230.XXX.XXX / / IP address

Flush the DNS cache:

The C:UsersAdministrator > ipconfig / flushdns Windows IP configuration successfully flushed the DNS parsing cache. These are the reasons why windows and linux ping display different ip. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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