[Bug 1697817] Re: disable smb1 by default

[Morbius1]

Just a side note folks but there's two SMBv1's involved here and both
are mentioned in this bug report.

There's the server part ( server min protocol ).

But there is also a samba client part ( client min / max protocol ) and
that's where the fun starts.

Nautilus uses gvfs which uses libsmblient to "discover" samba servers on
the network. The client max protocol is net to NT1 ( SMB1 ) for a
reason. Set "client max protocol = SMB3" or "client min protocol = SMB2"
and that discovery is broken. You can still access a host by name but
you have to know it's name.

You can verify that yourselves by using the command smbtree. Run it and
you will get a list of your hosts and their shares. Change the client
min or max values to something other than NT1 and smbtree results in
nothing.

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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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