Configurable listening address

[nvpavatar]

Right now Zen only listen on 127.255.255.255 network. I am using Zen to filter traffic from iPhone and other devices, so I had to make following change:
"-" listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", "127.0.0.1", p.port))
"+" listener, err := net.Listen("tcp", fmt.Sprintf(":%d", p.port))

Could it be a good idea to make Zen listening address configurable? With this feature Zen can be used to filter ads on any remote device

[anfragment]

Hey @nvpavatar! This is a really interesting usecase, are you encountering any difficulties with the setup? Did you manually copy and install the generated CA certificate on other devices?

Could it be a good idea to make Zen listening address configurable

I think we could support this without much trouble, perhaps as a non-GUI option in the JSON configuration file for now. Let me think about it just a bit more.

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cc @spellcascade you might find this interesting

[nvpavatar]

Yes, I manually installed CA certificate on iPhone. It does not work for NVIDIA SHIELD TV since they made impossible to install user CA certificates