Container ping bad address. Related Issues I have searched this repository/Pi-hole forums for existing issues and pull requests that look similar ping: bad address ‘google. 238: seq=1 ttl=58 time=86. 1 and v28. 177. Why: docker exec -it pig nslookup ping box. It helped to add such rules to the iptables of the host: DNS lookups seem broken in the alpine:3. 18) on Ubuntu. Oct 22, 2024 · Connecting to service on host port from inside Docker container, ping works (address resolves) but telnet fails Ask Question Asked 1 year, 3 months ago Modified 3 months ago Mar 2, 2022 · I am unable to ping any public IP from docker Container (CentOS) it's not about hostname or any DNS but IP, can ping to the docker0 network IP 172. com' I also tried these steps on another server (from Hetzner) and everything worked normally there. 1 but not to the internet IP [root@09ae7f091d When I tried to ping one container from the other using the service name from the docker-compose. io repos, referencing these closed tickets. The same with ubuntu works. 8 docker pull alpine Hello, I have a weird problem with DNS and my Alpine Container (latest version 3. 165. lan ping: bad address 'box. 1 and host machine ip from the container. Pinging any internal or external IP works without issue. Let’s try with a simple container : busybox Here are the commands tested docker run busybox nslookup google. $ sudo docker run -ti --rm alpine:3. com from the container, I get a bad address response. 04. conf was correct and it was using 127. 8, I expect the same or slower ping responses. 22. net on the host works fine. com on the internet without any special network setup, just by using the default settings (wherever they're stored)? So my option was add the flag --dns 8. If the container says bad address, I assume it is a special fqdn which is not accepted by the ping command in the busybox container. 181. com/8. com ping: bad address 'google. Steps to reproduce: docker network create customnet docker run --network customnet --rm alpine:latest ping linux There are tons of somewhat related tickets on this one, most, however, have the opposite issue where nslookup doesn't work, but, ping does work. json in host system i often get: ;; connection timed out; no servers could be reached Attempts to resolve: DNS settings in Docker: I have tried setting DNS directly in Docker commands and container configuration, but the issue persists. For example, the following script will work and I expect the bu 文章浏览阅读4w次，点赞13次，收藏61次。一台虚拟机里突然遇到docker容器一直重启，看了下logs，发现是访问外网失败引起的，网上看到这个解决方案，这边记录一下。首先需要明确docker的网桥模式，网桥工作在二层（OSI堆栈），是通用网络设备的一种，可以设置IP地址。有了IP地址，Linux便可通过 I am running podman on FreeBSD. conf on the Strato Server: nameserver 127. com'". 8. Error: ping: bad address google. Containers can communicate by IPs, but not by the alias/container names. 93. I have to use IPs or the FQDN. google. 04 with docker-ce. 53 options edns0 trust-ad search . g. 8 to the docker run command , and with that the container can ping to outside. I have my router give all clients the IP-address of my NAS as DNS server. From within the container, when I ping 8. com (108. Aug 19, 2025 · However, it’s common for developers to encounter an issue where a Docker container has no internet. 9 Node(s) CPU architecture, OS, and Version: Linux tom-nuc 6. com also with changing daemon. i also experienced with this issue (bad adress github. Ping itself with "nc" failed and "nc-ix-chart-784b94f444-m5gqg" worked. com' $ sudo docker run -ti --rm alpine:3. Containers}}{{. The only exception is to run the container on the host network. resolv. I am unable to ping any public IP from docker Container (CentOS) it's not about hostname or any DNS but IP, can ping to the docker0 network IP 172. , it won't have its own IP-address and/or networking isolation). This also means my NAS get's its own IP-address as DNS server and that seems to work if I ping a url from SSH and across the devices on my network. 9. _1 is the number of same container services in the pod for scalability. 17. conf a year ago. 13 docker image. I do see the requests being processed by AdGuard, but the application in any other container seems to time out on dns. That said, you probably need to figure out how DNS resolution works for the host machine (maybe you added something to /etc/hosts?) and then do the same inside the Since today, whenever I use any docker container with the bridge network interface, DNS resolutions seem to fail for certain utilities. 46): 56 data bytes ping: sendto: Network is unreachable $ docker run -it busybox ping google. 250. I waited for v28. Try an ubuntu container, or nicolaka/nethsoot, or share how you installed Docker Exctly. This article explores the underlying reasons for this complexity and presents various established techniques for a container to determine its host’s IP address and, where applicable, host-to-container port mappings. 31. 2，该地址 alpine1 与上一步中显示的地址相同。 从内部 alpine1，确保可以通过ping连接到Internet google. 14. Expected behavior ping reaches the host Actual behavior docker run --dns 8. Hello! I’m using a fresh install of Ubuntu 22. There are tons of somewhat related tickets on this one, most, however, have the opposite issue where nslookup doesn't work, but, ping does work. 238: seq=2 ttl=58 time=86. com, container default gateway 172. com' Information Diagnostic ID from "Diagnose & / # ping google. com’ docker run Podman container aliases give "bad address" when pinged Asked 3 years, 8 months ago Modified 3 years, 8 months ago Viewed 2k times I am upgrading my host linux system, but suddenly, my containers just can NOT connect to others or outside by name. lan' docker exec -it pig ping google. Even I tried to install docker after disabling all firewall rules. 234 ms I do not have access to hosts in my local network from container! (but have access to internet hosts from this container) Some Is this statement still true "You can't ping or access a container interface directly with Docker for Mac"? If not, how can I get the external IP of my docker container (I'm using docker compose) So I think this has something to do with the docker-networking even if I use network_mode: host but I have no idea what to do that all containers can use the PiHole-Container as DNS. com ping: bad address 'accounts. 572 ms 64 bytes from 142. You can override the hostname using --hostname. Jan 1, 2022 · Running a container with a command like `docker run --rm busybox ping -c 4 google. com (142. Now you can either use the Container Id to refer to the container created or can use the container name for the same. com ' I get 'ping: bad address'. com` also does not work. com on ping) on my docker desktop for mac 4. 11 When I tried to manually resolve my hostname with either nslookup myhostname. com ping: bad address 'stackoverflow. ping: bad address ‘ www. `resolv. When using netcat to wait for a docker container to be up, using container name using the latest busybox image, I am getting an error nc: bad address "docker container" docker run --name server --link postgres someserver:latest In the server container environment, you can then ping with (given postgres is on the same bridge/network and is running) Description I expect the built-in network bridge would behave like other custom networks when pinging by container name as host name. com` results in `ping: bad address 'google. 1 as a default DNS for new containers, however when using network=host, the container runs in the hosts's networking namespace (i. conf file looks fine from inside the pod / # cat /etc/resolv. However, it’s common for developers to encounter an issue where a Docker container has no internet. com。 该 -c 2 标志将命令限制为两次 ping 尝试。 0 Network-wise a container is like a separate server with it's own ip address, network routes and DNS resolution. Interestingly, everything functions flawlessly when using the default Podman network bridge, except for the ability to ping container names, which is a known limitation and therefore expected. Name}} {{end}}' t2_proxy containerA containerB $ docker exec containerA ping containerB -c2 ping: bad address 'containerB' $ docker inspect -f '{{. Here is the command results of my debug: $ docker network inspect -f '{{range . yaml file I got ping: bad address 'myhostname' I checked that the /etc/resolv. When using netcat to wait for a docker container to be up, using container name using the latest busybox image, I am getting an error nc: bad address "docker container" What's really confusing me is that nslookup of google. 631 ms But bridge networking does not work: $ docker run -it --network=bridge busybox ping google However if I ping the IP address directly, it works without a hitch. Here is my network settings when inspected: [ { "args": { "podman_labels": { "com. 5. projectatomic. GitLab is running inside a LXC container and the GitLab runner is a Ubuntu 22. Similarly when docker container is created the hostname defaults to be the container’s ID in Docker. Networks. com. internal I got error I had a similar problem, where I wanted to connect from a docker container to its host for accessing a postfix and an apache server. Pinging pi-hole. , 8. I can't resolve any hostnames in the container though. After some googling i found a fix, that i should just add my custom DNS in my runner’s config. Environmental Info: K3s Version: k3s version v1. 168. The same succeeds for similar rootl The ping bad address is an issue in podman default network and I'm still working to find a solution for it. 8 instead of /etc/resolve. conf on the Hetzner Server I can ping and access the web-frontend of mydomain. 8 busybox ping accounts. 03. When I load and run alpine container in OpenWRT environment in --network=bridge, not to able ping to either host IP address or google. 132 Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line) /kind bug Description DNS using container name fails for rootless containers on user-defined rootless cni network WITHIN a pod. 9, an IP address that does not exist, the ping should report 100% packet loss. net) and returns ping: bad address 'pi-hole. `docker run --rm --dns 8. 238): 56 data bytes 64 bytes from 142. I did change the configuration of the coredns to forward directly to 8. 13 ping -c 1 google. net'. There are tons of upstream tickets in say, linuxserver. 1. Please help. com So, the daemon is configured to use 192. com works and I can even ping the returned IP address successfully, however if I 'ping google. In that case, the configuration, IP-address, and hostname of the host are used for the container as well. do 云O生 云原生 In dnsutils pod exec ping stackoverflow. I had to downgrade docker-ce back to the version prior to v28. docker. com' inside a container with docker exec which returned "ping: bad address 'google. internal' I am not able to ping google. The files, such as /etc/resolv. As a consequence, our efforts to download packages, ping external services, or even access APIs become significantly hindered. conf` within the containers is set to google DNS also. toml. com PING google. com' The /etc/resolve. com ;; connection timed out; no servers could be reached docker run busybox ping (the same) ping: bad address ‘google. ping pi-hole. conf look almost the same on both servers. Oct 21, 2024 · Could depend on the fqdn. google. It does not matter whether I use host mode or not: $ docker run -it --network=host busybox ping google. com / # ping stackoverflow. com' Information Diagnostic ID from "Diagnose & From within a container pinging 8. t2_proxy i also experienced with this issue (bad adress github. e. 21. com'`, whereas pinging an IP directly (e. do 云O生 云原生 I have a docker-compose file and running containers Inside one of the container i have to access the host ip I get into the container docker-compose exec webapp /bin/bash and then checking the below Provides detailed information about common errors and issues people run into while running Linux on the Windows Subsystem for Linux. This issue is exclusive for Alpine. Here’s what I attempted: Expected behavior ping reaches the host Actual behavior docker run --dns 8. 238: seq=0 ttl=58 time=86. 0 (apple m1 pro), my workarround is by add the google dns on docker engine configuration, like: Can't ping container from another container "bad address" Asked 6 years, 5 months ago Modified 6 years, 1 month ago Viewed 6k times Inside a container does not resolve DNS (i. 0 (apple m1 pro), my workarround is by add the google dns on docker engine configuration, like: Is it correct to assume that on normal installations, when people run "docker run -it alpine", then they can ping e. 2, but neither fixed the problem for me. conf Host networking works: $ docker run -it --network=host busybox ping google. As soon as I use a custom network for the container, I cant resolv my hostnames anymore. When I use ping to ping a hostname, it fails with "bad address", however when pinging the ip address, it succe Answer a question I have a podman network. But it works most of the time. 8 busybox ping -c 4 google. 32. It seems that no docker container is able to access the internet. 1-Ubuntu SMP PREEMPT_DYNA For example, I created a container named ”nc“ using image "nextcloud:fpm", but the hostname is nc-ix-chart-784b94f444-m5gqg in the container. So we can use --name in docker run command. 8) works fine. I disabled the iptables rule using command ‘iptables -F’ . org' But if you perform the same action using the IP address of the target instead: sudo podman run alpine ping 54. In this tutorial, we’ll break down what to do if our Docker container has no internet. 12 ping -c 1 So when you expose a port in your container and bind it to all address in the host machine say using the -p parameter, the port is actually exposed in the docker virtual box VM and not on the windows machine. 9 (Maipo) I am stuck. For instance, if I run: sudo docker run --rm \\ --cap-add=. 721 ms 64 bytes from 142. I consider this a solution for one container, if you need for more containers, maybe other responses are better. redhat-release is Red Hat Enterprise Linux Server release 7. Installed the Docker Engine - Community version 19. 1 but not to the internet IP [root@09ae7f091d Hi ! I had initially the problem with docker-compose, unable to reach a debian update site Then I was able to build the image with --network host. com’ To verify that it’s not a kubernetes DNS issue, I started a standalone busybox docker container (docker run -it busybox sh) and tried nslookup (nslookup google Answer a question I have a podman network. 251. or nslookup myhostname. internal ping: bad address 'host. I have taken this from Docker docs. 前回（第2回）は、Apache httpdのCompose環境を例に、シンプルな開発環境の構築方法を学びました。今回取り上げるのは、Dockerに対応したアプリケーションを考える上で欠かせない、コンテナ間のDocker内 […] 第一个接口是回送设备。 现在忽略它。 请注意，第二个接口具有IP地址 172. 0-49-generic #49~22. NetworkSettings. 4+k3s1 (a562d09) go version go1. 04 LTS VM. 138): 56 data bytes 64 bytes from 108. docker run --rm -it alpine sh ping host. Aug 22, 2019 · Can't ping container from another container "bad address" Asked 6 years, 5 months ago Modified 6 years, 1 month ago Viewed 6k times Mar 19, 2025 · I tried to ping 'google. $ docker attach alpine1 / # ping -c 2 alpine2 ping: bad address 'alpine2' 透過這個實驗，我們發現在 alpine1 這個 container 中是可以透過 IP 直接 ping 到 alpine2 的，此外，也能 ping 到 google，也就是具有存取外部網路的能力這樣說來，我們在啟動 container 時，根本無須額外設定什麼就能讓 container 之間可以互相溝通跟具有對外溝通的能力。 If I exec'd into any container and ping'd google. 138: seq=0 ttl=100 time=67. 0. j3bqx, mdz7d, 0burx, g1ln, mexc, bqqa, aw3v, xinj, a0emb, zof4e,