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10.4: How to prevent single user mode logins
Authored by: simonpie on Feb 07, '06 07:27:42AM

I would simply protect using the firmware.



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10.4: How to prevent single user mode logins
Authored by: paulsomm on Feb 08, '06 12:47:43PM

If you pop out a RAM chip and put it back it resets the firmware (not a big problem for a lab of desktops, but it's trivial to do on an iBook or Powebook).

Another downside of the Firmware route is that the machine doesn't boot at all until you've entered the password. If you have to reboot your mac remotely, it'll stay at the password prompt until you are physically available to type the password in.

also, you cannot use OpenFirmware passwords on Intel macs (as they have no OpenFirmware).



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10.4: How to prevent single user mode logins
Authored by: xcgr on Feb 08, '06 06:44:52PM

also, you cannot use OpenFirmware passwords on Intel macs (as they have no OpenFirmware).

From Apple Support article #106482: "Intel-based Macintosh computers can be protected by firmware passwords as well. The firmware in an Intel-based computer uses Extended Firmware Interface (EFI) technology—Open Firmware is used in computers that use PowerPC processors."



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10.4: How to prevent single user mode logins
Authored by: delight1 on Jun 18, '07 05:27:31PM

there are three options for the security on the firmware: none, command, and full.
command is good enough for most things, and does not need a password to boot...



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