Where does docker save the iptables-rules permanently in Ubuntu 24.04?

[rimelek (Ákos Takács)]

I don’t think it is a single file. As I wrote there is network metadata and individual containerIt wouldn’t help. And you should never touch those files. The network database is a binary file anyway and there are container metadata json files and lots of other files under the docker data root (/var/lib/docker). Since I had a post about the network database, I can share

Network is already using parent interface

It means you previously created tha network with the id “ce3efa4b0a15”. Now Docker thinks that network still exists. Here is what I would try in addition to what you have already tried: Restart the docker daemon Check if you have an other installation. For example a rootless docker. I am not sure you could create macvlan with that, but it is worth a try to check it. Since you wrote you have already deleted all networks, it shouldn’t be a problem, but maybe Docker still has the information abou…

but it will still not help. It is not something you will change.