Export this smart card reader at session startup does not work

[opoplawski]

I can connect my smart card reader to the remote desktop and that works fine. However, there is a checkbox labeled “Export this smart card reader at session startup”, which I would assume would share the reader everytime I connect. However, this is not the case and I must manually share the reader each time.

NoMachine Workstation 8.11.3
Alma Linux 8.9

[pfitas]

Hi
Is this smart card reader a usb device? Have you tried sharing it through usb devices tab? Does smard card reader work without issues when shared manualy?

[opoplawski]

This is a YubiKey – so yes a USB device. Generally manually sharing the smartcard reader works just fine, though a current test of reconnecting to an old session with a rebooted client fails. PKCS11 operations seem to hang. I see the following repeated in the strace of p11tool –list-token-urls:

sendto(6, “NXCLIENT-4.0.0 cookie=AD2186647C3824FF8D0ACD921D66B992,command=set,target=local,option=smartcard,value=:1004:3319770 “, 117, 0, NULL, 0) = 117
recvfrom(6, “NXAGENT-8.11.3 “, 10240, 0, NULL, NULL) = 15
recvfrom(6, “error=0,value=retry “, 10225, 0, NULL, NULL) = 20

The YK device is not listed in the “Connect a USB device” menu, probably because it is already in use by the client machine. Unless the USB device could be used simultaneously by both machines (which seems doubtful), this would no be helpful to us because both the client and the remote session would need access to the smart card.

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