容器网络问题

[leopardaa521]

我在自己MacBook上架设了一个DNS服务器，控制台测试正常：

% nslookup www.baidu.com 127.0.0.1
Server:     127.0.0.1
Address:    127.0.0.1#53
Non-authoritative answer:
www.baidu.com   canonical name = www.a.shifen.com.
Name:   www.a.shifen.com
Address: 110.242.68.3
Name:   www.a.shifen.com
Address: 110.242.68.4
%

但是我启动一个Debian容器，测试失败：

% docker run -it --net=host --dns 127.0.0.1 debian:buster bash
WARNING: Localhost DNS setting (--dns=127.0.0.1) may fail in containers.
root@docker-desktop:/# ping www.baidu.com
ping: www.baidu.com: Temporary failure in name resolution
root@docker-desktop:/#

问题出在哪呢？

[qybao]

WARNING: Localhost DNS setting (--dns=127.0.0.1) may fail in containers. 估计是这里的问题 把127.0.0.1改成宿主机的ip试试？