Authentication failed with error 12

[hachque]

I just installed NoMachine for Mac (server) from the command line with roughly:

installer -pkg /Volumes/NoMachine/NoMachine.pkg -target /

This is with NoMachine 7.7.4_1 DMG. The machine is an M1 Mac running macOS Monterey. Rosetta 2 is installed.

After starting the server, any attempt to authenticate as the “administrator” results in this entry in the logs, and login failing:

==> /Library/Application Support/NoMachine/var/log/nxerror.log <==
818 259 04:04:57 565 nxexecPAMCheckCredentials: ERROR!Authentication failed with error 12.
Info: Connection from 220.253.128.13 port 1460 closed on Wed Nov  3 04:04:57 2021.
Info: Handler with pid 781 terminated on Wed Nov  3 04:04:57 2021.

There’s no documentation on what “error 12” means. I don’t have this issue on an Intel based Mac where I installed NoMachine visually through the installer.

Can anyone shed some light on what error 12 means so I can fix the issue?

[Carin]

Hi hachque,

You can find information about error 12 here: https://knowledgebase.nomachine.com/AR03S01118
This error can also be shown when the password is not correct.

[hachque]

I ended up figuring this out.

After installing NoMachine with:

installer -pkg /Volumes/NoMachine/NoMachine.pkg -target /

You then need to manually run the install scripts to configure PAM:

/Applications/NoMachine.app/Contents/Frameworks/scripts/setup/nxnode –install
/Applications/NoMachine.app/Contents/Frameworks/scripts/setup/nxclient –install
/Applications/NoMachine.app/Contents/Frameworks/scripts/setup/nxplayer –install
/Applications/NoMachine.app/Contents/Frameworks/scripts/setup/nxserver –install

If this is done correctly, /etc/pam.d/nx should exist, and login will work correctly.

[Britgirl]

Thanks for letting us know.

[Author]

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