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I set a global sockets proxy via 'Settings'-'Network'.

Then scutil always tries to revert my setting, then prompt a dialog to ask my password to allow this change. I can cancel it, but it will be popped up in few seconds.

Does anybody know why scutil wants to do it? And how to forbid this change forever?

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The tool scutil is like the scorpion in this tale - it's job is to mess with settings when asked. Deleting the tool would be foolhardy, so you will need to track down why it is being called. Search the forums here about fs_usage and ask if you can't figure out how to use it to narrow down when the tool runs. You may not have provided enough detail for anyone to guess an answer directly. – bmike Sep 27 '12 at 15:46
@bmike, looks like fs_usage does not help. localhost% sudo fs_usage scutil 18:23:58 fstat64 0.000004 scutil 18:23:58 write 0.000006 scutil 18:23:58 read 0.000003 scutil 18:24:07 write 0.000007 scutil 18:24:07 close 0.000007 scutil – Kane Sep 28 '12 at 10:50
Well - then you'll have to either wait for someone to know exactly what you are seeing or perhaps show more of your work in the question. It could be a managed lab environment where the admin doesn't want you changing things, where you are not an admin, where other software is running, or a whole host of other things. Basically - if no one has an answer, you might have to explain how you are seeing scutil change things and set up this problem in more detail. – bmike Sep 28 '12 at 13:02
up vote 0 down vote accepted

It looks like it's a bug of Lion Mountain, and it has been fixed by Apple.

The dialog won't appear after updating to 10.8.2.

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