Accessing windows shares using smbclient command failing with "cli_negprot: SMB signing is mandatory and we have disabled it.".

Solution Verified - Updated -

Issue

  • Attempts to access windows shares using the smbclient command is failing with :
#  smbclient -S off -L'//A-Windows-Share' -U A-Authorized-User
Enter A-Authorized-Users password:
cli_negprot: SMB signing is mandatory and we have disabled it.
protocol negotiation failed: NT_STATUS_ACCESS_DENIED
  • How can windows shares be accessed via smbclient with digitally signed communications.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Active Directory

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