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Docker Engine v28: Hardening Container Networking by Default (docker.com)
3 points by password4321 34 days ago | hide | past | favorite | 1 comment



Docker networking defaults have been tightened up but per https://github.com/moby/moby/issues/22054#issuecomment-28714...:

the default binding address is still 0.0.0.0.

There are now rules in raw-PREROUTING to drop packets sent from outside the host to container addresses, and to ports mapped to the loopback address. Rules in the filter-FORWARD chain no longer depend on its default policy.




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