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baudneo / cync-lan

Local async MQTT controller for Cync / C by GE smart devices - designed for Home Assistant.
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How to get socat logs #7

Open Akzotus opened 1 month ago

Akzotus commented 1 month ago

I've got some of the cync fan controllers and am ready to do my best. What exactly are socat logs and how do I go about obtaining them?

Full disclosure, I not only have no idea what I'm doing, but am also an idiot. So I apologize in advance.

baudneo commented 1 month ago

Before you can start, youll need a way to control DNS on your network. Do you have a pi-hole or use pfsense/opnsense as a firewall?

The way that cync-lan works is by hijacking DNS requests, when a cync device tries to connect to the cync cloud by using a domain name, your local DNS server will tell the cync device to connect to a local IP rather than the cync cloud server. cync-lan basically pretends to be the cync cloud server, enabling local control.

In order to utilize socat to MITM traffic between the fan controller and the actual cync cloud server, DNS hijacking is required.

Akzotus commented 1 month ago

I've got OpenWRT on my router, so I should be able to hijack any addresses needed. If not, I'll soon find out I suppose.

baudneo commented 1 month ago

Alright, if you want to, you could take screenshots of the workflow to get the DNS redirection going. I havent used OWRT for a good 10 years, so I have no clue what DNS backend it uses.

Can you get the DNS stuff set-up? I have examples for pihole and opnsense in the docs.