| 1 | <samba:parameter name="lanman auth"
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| 2 | context="G"
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| 3 | type="boolean"
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| 4 | advanced="1" developer="1"
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| 5 | xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
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| 6 | <description>
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| 7 | <para>This parameter determines whether or not <citerefentry><refentrytitle>smbd</refentrytitle>
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| 8 | <manvolnum>8</manvolnum></citerefentry> will attempt to
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| 9 | authenticate users or permit password changes
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| 10 | using the LANMAN password hash. If disabled, only clients which support NT
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| 11 | password hashes (e.g. Windows NT/2000 clients, smbclient, but not
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| 12 | Windows 95/98 or the MS DOS network client) will be able to
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| 13 | connect to the Samba host.</para>
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| 14 |
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| 15 | <para>The LANMAN encrypted response is easily broken, due to its
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| 16 | case-insensitive nature, and the choice of algorithm. Servers
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| 17 | without Windows 95/98/ME or MS DOS clients are advised to disable
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| 18 | this option. </para>
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| 19 |
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| 20 | <para>When this parameter is set to <value>no</value> this
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| 21 | will also result in sambaLMPassword in Samba's passdb being
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| 22 | blanked after the next password change. As a result of that
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| 23 | lanman clients won't be able to authenticate, even if lanman
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| 24 | auth is reenabled later on.
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| 25 | </para>
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| 26 |
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| 27 | <para>Unlike the <command moreinfo="none">encrypt
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| 28 | passwords</command> option, this parameter cannot alter client
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| 29 | behaviour, and the LANMAN response will still be sent over the
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| 30 | network. See the <command moreinfo="none">client lanman
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| 31 | auth</command> to disable this for Samba's clients (such as smbclient)</para>
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| 32 |
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| 33 | <para>If this option, and <command moreinfo="none">ntlm
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| 34 | auth</command> are both disabled, then only NTLMv2 logins will be
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| 35 | permited. Not all clients support NTLMv2, and most will require
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| 36 | special configuration to use it.</para>
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| 37 | </description>
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| 38 |
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| 39 | <value type="default">no</value>
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| 40 | </samba:parameter>
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