docker에서 DNS 쿼리 문제 해결

I got a dns error that i can not access dns server, 
that caused by : /etc/resolv.conf
you can find this in host-machine
nameserver 127.0.1.1search gd1.qingcloud.com
 
Yes, you can find the process named "dnsmasq"listening 53 port, so you got nameserver 127.0.1.1 firstly.
 
however, it's not same with the docker machine,
search gd1.qingcloud.com
nameserver 8.8.8.8nameserver 8.8.4.4
 
you can find this from  /etc/resolv.conf
the based image is download from docker offical via docker pull ubuntu.
so you get 8 repeats 4 times dns server.
 
 
 
 
however, WTF this at start ? => search gd1.qingcloud.com
in docker, you don't have dnsmasq, you can not find gd1.qingcloud.com, have not configure nameserver 127.0.0.1
you have do this to fix it:
nameserver 202.96.209.133  # valid nameserver ip address, remove "search gd1.qingcloud.com"nameserver 8.8.8.8nameserver 8.8.4.4
 
-----------------------
더 좋은 방법은dnsmasq를 직접 설치하는 것이다
apt-get install dnsmasq
 
service dnsmasq start
오류:
* Starting DNS forwarder and DHCP server dnsmasq dnsmasq: setting capabilities failed: Operation not permitted
 
해결 방법:
https://www.damagehead.com/blog/2015/04/28/deploying-a-dns-server-using-docker/
 
구성 추가:

conf-dir=/etc/dnsmasq.d/,*.conf

interface=lo
interface=eth0
interface=docker0
resolv-file=/etc/resolv.dnsmasq.conf
user=root

　　service dnsmasq start
전재 대상:https://www.cnblogs.com/clor001/p/5776847.html