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kinnay / SMB35

An open source server for Super Mario Bros. 35
GNU Affero General Public License v3.0
181 stars 24 forks source link

DNS-only route with no RCM hacks? #13

Closed petersvp closed 3 years ago

petersvp commented 3 years ago

Is it possible that this open source server is made workable by only DNS modding? E.g. a DNS server that serves your server IP instead of the actual Arika/Nintendo one? I believe it will be possible and you should focus on this. I prefer to not mod my switch and it will be much more accessible for everyone if possible.

just-another-random-person commented 3 years ago

Before you can connect online on the Switch, it connects to Nintendo's dauth (device authorization) and aauth (application authorization) https servers. This provides a response signed by Nintendo that you are allowed to go online (banned units aren't given such a response).

Explained better by SciresM (author of Atmosphere):

https://www.reddit.com/r/SwitchHacks/comments/8rxg26/psa_strong_antipiracy_measures_implemented_by/

So it's impossible to do anything "custom-server" like unless you actually patch the system and the game.

kinnay commented 3 years ago

@just-another-random-person is right. This is impossible. All servers use TLS, including the game server. If one could replace a server by DNS modding, TLS would not be secure.