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by billpg 5660 days ago
Are Skype relying on third parties with no contractual relationship for an essential component of the network?
2 comments

Yup. But they do mention it when installing. You can also disable it.

If you are not firewalled or NATd you are a supernode automatically - on the plus side you get better sound quality for voice calls.

Normally the bandwidth used is pretty low since you are mostly forwarding text messages.

When they said mega-supernodes they meant machines controlled by them that do nothing else, and are on high bandwidth connections. (My bet is lots of amazon instances.)

I've looked around for the ability to turn off supernode on Linux and Mac clients for a while but have come up empty. Do you know which section of the preferences/settings it's supposed to be in?
I don't think there's a UI element for it, but you have to add a registry key, see here:

https://www.cs.uwaterloo.ca/twiki/view/CF/SkypeConfiguration...

How pray-tell, does a Windows registry entry disable super node functionality on Linux and/or MacOSX?
Well barring effective virtualization, booting into Windows disables supernode functionality on Windows and MacOSX in the same sense that a brownout does
Skype's EULA pretty clearly states that this is the case:

3.3 Utilization of Your Computer: Skype Software may utilize the processor and bandwidth of the computer (or other applicable device) You are utilizing, for the limited purpose of facilitating the communication between Skype Software users.