![]() ![]() source3/auth/auth.c:189(auth_check_ntlm_password)Ĭheck_ntlm_password: Checking password for unmapped user with the new password interface Trying the same share access again from our Windows 10 client, Samba spits out a log of tail -f /var/log/samba/log.172.30.123.195 In the section (= before the definition of shares) of /etc/samba/smb.conf add: Now don't forget to tell Samba about the external config file(s) for client specific logging. For example if you connect to the SMB share from a client with IP ln -s /etc/samba/-debug /etc/samba/-172.30.123.195 Using this prepared config, a simple symlink with the client's IP address can be created. # add microsecond resolution to timestamp Samba allows to define per client logging, so I prepared a config file with debug 3 (that's sufficient to log authentication cat /etc/samba/-debug To be able to see the communication between the Windows 10 client and our public Samba share, debug logging was enabled. OK this event now gives us relevant information but technically we're non the wiser. Microsoft recommends that you do not enable insecure guest logons. Windows disables "insecure" (nonsecure) guest logons by default. Therefore, guest logons are vulnerable to man-in-the-middle attacks that can expose sensitive data on the network. Guest logons do not support standard security features such as signing and encryption. This event indicates that the server tried to log on the user as an unauthenticated guest but was denied by the client. An event with ID 31017 was logged and contained the following description: ![]() However a closer look into the Event Log of the SMBClient Windows application reveals more. Note there is no external password authentication happening.Īs mentioned above, the error message shown in Windows Explorer is not helpful at all it suggests that the server could not be found. Newly created files or directories will therefore also be owned by "mylocaluser". Every connected client will therefore navigate as "mylocaluser" inside the share.
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