resolv.conf questions

Eliza eli at ChinaBuckets.com
Tue Aug 6 12:29:56 UTC 2019


Hello,

After installing ubuntu-18.04 I found there are the lines in 
/etc/resolv.conf:

nameserver 127.0.0.53
options edns0

I am not familiar with Linux enough, having questions that:

why does nameserver set up to this address rather than a public DNS such 
as 8.8.8.8?

How to disable it?

what is options edns0?

Thanks.





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