[Bug 1697817] Re: disable smb1 by default

[Andreas Hasenack]

List of protocols from the smb.conf(5) manpage. Looks like "NT1" is
SMB1:

       client max protocol (G)

           The value of the parameter (a string) is the highest protocol
level that will be supported by the client.

           Possible values are :

           ·   CORE: Earliest version. No concept of user names.

           ·   COREPLUS: Slight improvements on CORE for efficiency.

           ·   LANMAN1: First modern version of the protocol. Long
filename support.

           ·   LANMAN2: Updates to Lanman1 protocol.

           ·   NT1: Current up to date version of the protocol. Used by
Windows NT. Known as CIFS.

           ·   SMB2: Re-implementation of the SMB protocol. Used by
Windows Vista and later versions of Windows. SMB2 has sub protocols
available.

               ·   SMB2_02: The earliest SMB2 version.

               ·   SMB2_10: Windows 7 SMB2 version.

               ·   SMB2_22: Early Windows 8 SMB2 version.

               ·   SMB2_24: Windows 8 beta SMB2 version.

           By default SMB2 selects the SMB2_10 variant.

       ·   SMB3: The same as SMB2. Used by Windows 8. SMB3 has sub
protocols available.

           ·   SMB3_00: Windows 8 SMB3 version. (mostly the same as
SMB2_24)

           ·   SMB3_02: Windows 8.1 SMB3 version.

           ·   SMB3_10: early Windows 10 technical preview SMB3 version.

           ·   SMB3_11: Windows 10 technical preview SMB3 version (maybe
final).


** Changed in: samba (Ubuntu)
       Status: Confirmed => Triaged

** Tags added: server-next

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https://bugs.launchpad.net/bugs/1697817

Title:
  disable smb1 by default

Status in samba package in Ubuntu:
  Triaged

Bug description:
  Hello,

  Ned Pyle from the SMB team at Microsoft would very much like us to
  disable SMBv1 in Samba by default:

  https://twitter.com/NerdPyle/status/874798165429440512
  https://blogs.technet.microsoft.com/filecab/2016/09/16/stop-using-smb1/

  It'd be nice to make this change early enough that 18.04 LTS does not
  ship with SMB1 support enabled by default.

  Thanks

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