this post was submitted on 28 Oct 2023
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Can somebody help me understand the 0.0.0.0 address in docker? (alien.top)
submitted 1 year ago by [email protected] to c/[email protected]
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Basically, I have this doubt, I have some self hosted services in docker where I add the ports like this:
host_port:container_port, so I don't specify the interface, so by default, it is 0.0.0.0.

Somebody recently told me that this is dangerous and that I expose my services to the public internet by doing this. I don't want to do that since I am the only one accessing them so I just use a vpn to access them. So, to try this out, I typed in my browser my public ip alongside the host port I used for one of my services but I cannot access it. This has me puzzled. How's the deal? Am I exposing it? Should I change it?

What are your thoughts? Thanks!

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