client lanman auth

This parameter determines whether or not smbclient
8 and other samba client
tools will attempt to authenticate itself to servers using the
weaker LANMAN password hash. If disabled, only server which support NT
password hashes (e.g. Windows NT/2000, Samba, etc... but not
Windows 95/98) will be able to be connected from the Samba client.

The LANMAN encrypted response is easily broken, due to its
case-insensitive nature, and the choice of algorithm. Clients
without Windows 95/98 servers are advised to disable
this option.

Disabling this option will also disable the client plaintext auth option.

Likewise, if the client ntlmv2
auth parameter is enabled, then only NTLMv2 logins will be
attempted.

Supported on: At least Microsoft Windows 7 or Windows Server 2008 family

client lanman auth
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Samba\smb_conf\client lanman auth
Value Nameclient lanman auth
Value TypeREG_DWORD
Default Value0
True Value1
False Value0

samba.admx

Administrative Templates (Computers)