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How to quickly make DNS modifications effective under Linux _unix Linux

Source: Internet
Author: User
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How to quickly make DNS modifications effective

OS X, Chrome, and DNS

In development, the domain name is often bound to some IP, and then need to switch frequently, then in Linux how to quickly let DNS modify sound?

1. First use the Dig command query domain name corresponding to the IP has been effective

shell$ Dig grepalex.com

;; ANSWER section:
grepalex.com.3600ina66.216.100.140

2. How to be chrome, you can enter the following command on the address bar to disable the browser's DNS cache

chrome://net-internals/#dns

3. Although the browser DNS cache has failed, but the operating system may also have a layer of DNS caching, then we can use the following command to clear the OS
DNS Cache

shell$ sudo killall-hup mdnsresponder

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