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Thanks for this, was really going loosing my mind trying to understand what was happening with docker containers and 18.04 resolving IPs on a VPN. Fixing /etc/ ...

Jan 10, 2017 · install docker (beta) Launch ubuntu shell with "docker run -i -t ubuntu /bin/sh". observe networking works just fine (ie apt-get update -- or install ping with apt-get) Launch Cisco VPN. observe networking fails. DNS names will not resolve. /etc/resolv.conf contains 192.168.65.1 as the server.

08.07.2021 · Or maybe you have different DNS configurations for VPNs. ... And that's all there is to defining DNS in your Docker containers. Why you would use this will depend on your needs, ...

Solution

Some have encountered problems with DNS resolving inside the docker container. This causes trouble because OpenVPN will not be ...

Apr 01, 2019 · By default, a container inherits the DNS settings of the Docker daemon, including the /etc/hosts and /etc/resolv.conf. You can override these settings on a per-container basis. This would mean that any DNS queries to 127.0.0.11 would use the private AWS DNS 172.16.0.23 that my VPN desires, which would result in a timeout as Docker isn’t using my VPN .

Docker populates /etc/resolv.conf by copying the host's /etc/resolv.conf, and filtering out any local nameservers such as 127.0.1.1.If there are no nameservers left after that, Docker will add Google's public DNS servers (8.8.8.8 and 8.8.4.4). According to the Docker documentation:. Note: If you need access to a host’s localhost resolver, you must modify your DNS service on the host …

docker run -d \ --name VPN \ --restart unless-stopped \ --privileged \ --net=host \ -v {local_path_to_chap_secrets}:/etc/ppp/chap-secrets \ rattydave/alpine-vpn-pptp. Edit your local chap-secrets file, to add or modify VPN users whenever you need. When adding new users to chap-secrets file, you don't need to restart Docker container.

It turns out that Docker has an internal Domain Name Service (DNS). Did you know? It's new to me too! I learnt the hard way while using a VPN.

A reproducible case if this is a bug, Dockerfiles FTW. macOS Version: 10.14.6 (18G5033). Diagnostic logs. Docker for Mac: 2.3.0.3 (45519). Steps ...

15.04.2016 · I'm trying to set up a docker container to access my VPN (IVPN). I want to use the DNS of the VPN, but the DNS is selected based on the IP address I'm assigned - which occurs within the container....

docker containers available within VPN network and dns resolution [dns][vps][docker]. Post by k1r0s » Sat Sep 18, 2021 7:36 pm. Hello ppl. Im a fullstack ...

10.01.2017 · When VPN is activated on the (windows) host docker networking should continue working normally in the containers (using default networking setup) Actual behavior. When VPN is activated DNS resolution is not possible using the auto-set DNS server in the docker images. Information. Diagnostic ID from "Diagnose & Feedback" in the menu.

Feb 12, 2018 · docker run -v $PWD/vpn-data:/etc/openvpn --rm myownvpn ovpn_getclient user1 > user1.ovpn You can copy user1.ovpn file with SCP, SFTP, or any method you want. Users can connect to your server with...

04.07.2020 · Recently I discovered that my BC instance within a Docker container somehow can not access the internet. After some time I figured that the problem was the DNS resolution and I thought I might share two possible ways to resolve this problem with you! How to check if you have the same problem You can…

I'm using docker 19.03.9, on Ubuntu 18.04; docker daemon is configured to start automatically. When I connect to my employer VPN, docker DNS ...

It seems the docker daemon is trying to use Google's DNS servers instead of the DNS servers set by the VPN. Expected behavior. Docker pull ...

Well, well, well...How could I imagine that configuring a VPN would not be so easy? Hahahaha, ok,... Tagged with devops, docker, container, ...

... networking problems with Docker, Nate explains what to do when Docker's networking mechanisms conflict with local or VPN IP addresses.

Apr 15, 2016 · I'm trying to set up a docker container to access my VPN (IVPN). I want to use the DNS of the VPN, but the DNS is selected based on the IP address I'm assigned - which occurs within the container....

01.04.2019 · By setting the DNS IP addresses to a public DNS address we avoid the issue of inheriting a DNS address which is not accessible due to the traffic not being routed through the VPN. The configuration above resolves the timeout issue. It would seem as if the internal Docker DNS will stop attempting to resolve the request (even the internal DNS ...

12.02.2018 · DevOps / DevSecOps Consultant. Author of 3 books. Seriously passionate about Kubernetes, Docker (container tech). Coding mostly in Python. — Founder @peptrnet