<samba:parameter name="lanman auth"
context="G"
advanced="1" developer="1"
xmlns:samba="http://samba.org/common">
<listitem>
<para>This parameter determines whether or not <citerefentry><refentrytitle>smbd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry> will attempt to authenticate users
using the LANMAN password hash. If disabled, only clients which support NT
password hashes (e.g. Windows NT/2000 clients, smbclient, etc... but not
Windows 95/98 or the MS DOS network client) will be able to connect to the Samba host.</para>
<para>The LANMAN encrypted response is easily broken, due to it's
case-insensitive nature, and the choice of algorithm. Servers
without Windows 95/98 or MS DOS clients are advised to disable
this option. </para>
<para>Unlike the <command moreinfo="none">encypt
passwords</command> option, this parameter cannot alter client
behaviour, and the LANMAN response will still be sent over the
network. See the <command moreinfo="none">client lanman
auth</command> to disable this for Samba's clients (such as smbclient)</para>
<para>If this option, and <command moreinfo="none">ntlm
auth</command> are both disabled, then only NTLMv2 logins will be
permited. Not all clients support NTLMv2, and most will require
special configuration to us it.</para>
<para>Default : <command moreinfo="none">lanman auth = yes</command></para>
</listitem>
</samba:parameter>