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Is it possible to give the permissions to a file based on from which machine (IP address) [the user is] logged in?
No, it's not possible. The traditional Linux access framework uses DAC (Discretionary Access Control), based on users and groups. Even ACLs, which allow for more fine-grained permissions, are based on that. And so (IIRC) are PAMs.
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You can do this in VirtualBox with the Guest Additions installed. It requires a processor with virtualization instructions and the instructions enabled in BIOS.
In the VirtualBox manager, adjust the settings of your VM by going to Settings → Display → Screen and ticking the following checkboxes:
☑ Enable 3D Acceleration
☑ Enable 2D Acceleration
For ...
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This question has already been answered a few time over on AskUbuntu - it seems it's an issue with Ubuntu installs and UEFI.
This solution worked a charm for me, but note that you do have to complete the MOX bit on reboot if you choose to install third party drivers even after the installation completes.
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The publickey auth is failing because the authorized_keys file is empty.
It is empty because you didn't add the public key to it. You could add it by first cd-ing to test_users .ssh directory on the windows box and running something like:
cat id_ecdsa.pub >> authorized_keys
(or whatever the public key's filename is, if it's not id_ecdsa.pub. Don'...
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For a terminal based solution, you can use
nmblookup -S '*'
which shows all Samba shares in your broadcast domain.
More can be found here.
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