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The purpose of this article is to share with you what to do if you can't connect to the Internet in a Docker container. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Six solutions that cannot be connected to the Internet in a Docker container

Note: the following method is to ping the public network IP solution in the container. If the public network IP is not connected to ping, the host may not be able to connect to the network (try ping 8.8.8.8)

1. Use the-net:host option

Sudo docker run-- net:host-- name ubuntu_bash-I-t ubuntu:latest / bin/bash

two。 Use the-dns option

Sudo docker run-dns 8.8.8.8-dns 8.8.4.4-name ubuntu_bash-I-t ubuntu:latest / bin/bash

3. Change to dns server

Vi / etc/default/docker

Remove the # before "docker_OPTS="-dns 8.8.8.8-dns 8.8.4.4 ""

4. No need for dnsmasq

Vi / etc/NetworkManager/NetworkManager.conf

Add a # comment before dns=dnsmasq.

Sudo restart network-managersudo restart docker

5. Rebuild the docker0 network

Pkill docker # termination process iptables-t nat-F # clear all chains of the nat table ifconfig docker0 down # stop docker default bridge brctl delbr docker0 # Delete bridge docker-d

6. Modify / etc/hosts directly in docker

Thank you for reading! This is the end of the article on "what to do if you can't connect to the Internet in the Docker container". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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