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I do not understand what you mean by "priority over the system ones" A docker container can have internal ports exposed explicitly, or use host networking. In
by BrandoElFollito 6y ago
I do not understand what you mean by "priority over the system ones"
A docker container can have internal ports exposed explicitly, or use host networking. In any case these are ports exposed by the docker-proxy executable - an executable like any other on the system.
Then come the iptables rules of the system (which open or not data flow to the ports exposed by docker-proxy).
Or is it different?
- BrandoElFollito 6y agoAh, now I get what you mean - that entries such as ACCEPT tcp -- anywhere 172.19.0.10 tcp dpt:8843 are created by docker, independently from the configuration of iptables themselves.
- Sebb767 6y agoTaking precedence was not the ideal word - it uses the same ip tables, but it inserts its own table as the first one. Therefore it 'ignores' system rules, which might come at a surprise.