namrab
Level 1 (4 points)
Desktops

Q: Help needed

Hi.

I am unable to enable both the Firevault as well as the FireWall of my Mac. I did not turn these off at any point myself.

Anyhow they are turned off and the button to turn them on has been greyed. Is this to do with a virus?

 

Please help.

Posted on Jun 15, 2016 7:39 AM

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namrab

Q: Help needed

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  • Helpful answers

  • by Grant Bennet-Alder,Helpful

    Grant Bennet-Alder Grant Bennet-Alder Jun 15, 2016 10:36 AM in response to namrab
    Level 9 (60,627 points)
    Desktops
    Jun 15, 2016 10:36 AM in response to namrab

    If you are on a Network from a Router you control, Your Mac cannot be reached from the Internet due to Network Address Translation. Addresses assigned by DHCP are "strictly local", and cannot be reached from the Internet.

     

    Using FileVault (whole-disk encryption) requires that your drive be initialized with Logical Volume Group data structures. This was not the default for Mac Pro silver tower drives. If you initialize a new drive, you can add these data structures.

     

    Any attempt to convert a working drive to Core Storage and Logical Volume group requires dangerous re-writing of the fundamental data on the drive, and risks erasing everything. You MUST have at least one Trusted Backup before proceeding, or risk losing everything.

     

    If you have a Mac Pro with a processor (Westmere or later) that includes the AES Instruction set, conversion from and to encrypted will be faster.

  • by namrab,

    namrab namrab Jun 15, 2016 10:38 AM in response to Grant Bennet-Alder
    Level 1 (4 points)
    Desktops
    Jun 15, 2016 10:38 AM in response to Grant Bennet-Alder

    So what should i do in this case?

    In order to activate my firewall?

    Do I need to backup and erase my mac hard disk (as suggested by some online communities as the solution)?

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jun 15, 2016 10:52 AM in response to namrab
    Level 9 (60,627 points)
    Desktops
    Jun 15, 2016 10:52 AM in response to namrab

    So what should i do in this case?

    In order to activate my firewall?

     

    There is no need for a Firewall on your Mac. The router you control on your home network already provides a very good firewall.

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jun 15, 2016 10:57 AM in response to namrab
    Level 9 (60,627 points)
    Desktops
    Jun 15, 2016 10:57 AM in response to namrab

    Do I need to backup and erase my mac hard disk [to convert to full-disk encryption]

     

    You need a Trusted Backup. You MAY be able to convert your current drive "in-place" without doing an erase and then a restore.

     

    However, the risk of losing everything is Very Large. You MUST have at least one Trusted Backup before attempting such a conversion, whether you choose to erase-and-restore convert in-place.