Error 255 returned when creating Samba usershare in Nautilus

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Environment

SUSE Linux Enterprise Server 11 Service Pack 4 (SLES 11 SP4)

Situation

Upon right-clicking a folder in Gnome's Nautilus file manager, choosing "Sharing Options," selecting the "Share this folder" box and clicking the "Create Share" button in the open dialog, the following error is returned:

'net usershare' returned error 255: net usershare add: cannot convert name "Everyone" to a SID. Access denied.

Resolution

Since samba-client version 3.6.3-76.1, a new global option is required in smb.conf.

hostname:~ # vi /etc/samba/smb.conf

Add this option under the [global] section:

client ipc signing = auto

After the change is written, restart the samba service:

hostname:~ # rcsmb restart

Cause

Several CVEs were addressed for this samba-client package with the update to version 3.6.3-76.1. As a result of these changes, this new client ipc signing configuration option is required when creating usershares through Nautilus.

Disclaimer

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