Disconnected every hour or two

Docker Hub
1

Docker 19.1.3
vps ubuntu 24
disconnected iptables - docker rename virtual nics and bridges

Here is a sample dmesg:
88674.465534] br-9fdcd69e27e2: port 18(veth9ad5d51) entered blocking state
[88674.465539] br-9fdcd69e27e2: port 18(veth9ad5d51) entered forwarding state
[88674.581288] br-b2bf533d47a1: port 11(veth343a11a) entered blocking state
[88674.581295] br-b2bf533d47a1: port 11(veth343a11a) entered disabled state
[88674.582151] veth343a11a: entered allmulticast mode
[88674.582237] veth343a11a: entered promiscuous mode
[88674.583262] eth2: renamed from vethedaec20
[88674.597359] br-b2bf533d47a1: port 10(veth3ba0176) entered blocking state
[88674.597373] br-b2bf533d47a1: port 10(veth3ba0176) entered forwarding state
[88674.602520] eth2: renamed from veth3e0eb3f
[88674.615183] br-b2bf533d47a1: port 11(veth343a11a) entered blocking state
[88674.615194] br-b2bf533d47a1: port 11(veth343a11a) entered forwarding state

Help appreciated

2

Category “Docker Hub” is for topics about the official Docker image repository.

Docker 19 is from 2021. Is that really what you are using?

Share docker version and docker info. Use 3 backticks before and after.

Why do you think Docker is renaming the interfaces?

3

That is just a sign of restarting containers. Have you checked container statuses and logs? docker ps should show if some containers are restarting. At least you can see since how long it is up. And docker logs containername can show you if the process inside the container stopped.

I am not sure about “disconnected iptables”. I have never seen that in error messages.
But IAs @bluepuma77 pointed out, your Docker is pretty old. It could be incompatible with the latest Ubuntu versions, I am not sure. And the chance of incompatibility is increasing with every package upgrade on the OS.

I assume:

Which happens when we restart a container.

4

Thanks for replies!! My vps host provider recognized this as a hardware problem and will move vos to new hardware, I believe problem is solved…