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10.5: Screen share with multiple Macs behind one NAT
Authored by: palahala on Aug 07, '09 09:09:25AM

On Windows, I've never used VNC without SSH, as (most?) VNC servers have no protection against brute force attacks (and thus allow for an unlimited number of attempts to guess the password).

I wonder if Screen Sharing in OS X has some built-in protection?



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10.5: Screen share with multiple Macs behind one NAT
Authored by: las_vegas on Aug 07, '09 06:21:33PM

Screen sharing requires both the login name and password then rejects login after three failed attempts.



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10.5: Screen share with multiple Macs behind one NAT
Authored by: palahala on Aug 09, '09 08:19:30AM

I did some testing with Screen Sharing enabled for standard VNC clients, like to access a Mac from non-Mac OS X systems. (In System Preferences, Sharing select Screen Sharing, and then click Computer Settings. Here, one can enable and set "VNC viewers may control screen with password".)

It seems that a VNC client can try to connect as many times as wanted.



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