我尝试使用自定义网络和dos设置创建docker容器。
docker network create --driver = bridge --opt＆＃34; com.docker.network.bridge.enable_ip_masquerade＆＃34; =＆＃34; true＆＃34; --opt＆＃34; com.docker.network.bridge.enable_icc＆＃34; =＆＃34; true＆＃34; --opt =＆＃34; com.docker.network.driver.mtu＆＃34; =＆＃34; 1500＆＃34; --opt =＆＃34; com.docker.network.bridge.host_binding_ipv4＆＃34; =＆＃34; 0.0.0.0＆＃34;净
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docker run --dns 10.0.0.2 --network = net busybox cat /etc/resolv.conf
nameserver 127.0.0.11 options ndots：0
否则，如果我使用标准网络，那么一切正常
docker run --dns 10.0.0.2 --network = bridge busybox cat /etc/resolv.conf
nameserver 10.0.0.2
答案 0 :(得分：2)
从Docker 1.10开始，DNS对用户定义的网络的管理方式不同。默认桥接网络的DNS未更改，以实现向后兼容性。在用户定义的网络中，docker守护程序使用嵌入式DNS服务器。根据这里找到的文件：
https://docs.docker.com/engine/userguide/networking/configure-dns/
--dns=[IP_ADDRESS...] The IP addresses passed via the --dns option is used by the embedded
DNS server to forward the DNS query if embedded DNS server is unable
to resolve a name resolution request from the containers. These
--dns IP addresses are managed by the embedded DNS server and will not
be updated in the container’s /etc/resolv.conf file.
因此，将使用DNS名称服务器，它在容器的/etc/resolv.conf中不可见。