This is not insecure. It is surprising if you don’t know how containers work, but in a real deployment you’d only bind to localhost and use a reverse proxy and that is perfectly safe.
As I said this is surprising if you don’t know how containers work. This is similar from how e.g. virtual machine networking would trip you. As long as you know how to set things up properly, which is documented at length, Docker is not “insecure”.
So-called “bridged networking” is not the default for VirtualBox but it is recommended for Qemu, yes. In that case only the routing rules on the bridge apply, not the filtering rules on your host’s interface.
This is not insecure. It is surprising if you don’t know how containers work, but in a real deployment you’d only bind to localhost and use a reverse proxy and that is perfectly safe.
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As I said this is surprising if you don’t know how containers work. This is similar from how e.g. virtual machine networking would trip you. As long as you know how to set things up properly, which is documented at length, Docker is not “insecure”.
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So-called “bridged networking” is not the default for VirtualBox but it is recommended for Qemu, yes. In that case only the routing rules on the bridge apply, not the filtering rules on your host’s interface.