1 <samba:parameter name="name resolve order"
4 advanced="1" wizard="1" developer="1"
5 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
7 <para>This option is used by the programs in the Samba
8 suite to determine what naming services to use and in what order
9 to resolve host names to IP addresses. Its main purpose to is to
10 control how netbios name resolution is performed. The option takes a space
11 separated string of name resolution options.</para>
13 <para>The options are: "lmhosts", "host",
14 "wins" and "bcast". They cause names to be
15 resolved as follows:</para>
20 <constant>lmhosts</constant> : Lookup an IP address in the Samba lmhosts file. If the line in lmhosts has
21 no name type attached to the NetBIOS name (see the manpage for lmhosts for details) then
22 any name type matches for lookup.
28 <constant>host</constant> : Do a standard host name to IP address resolution, using the system
29 <filename moreinfo="none">/etc/hosts </filename>, NIS, or DNS lookups. This method of name resolution is
30 operating system depended for instance on IRIX or Solaris this may be controlled by the <filename
31 moreinfo="none">/etc/nsswitch.conf</filename> file. Note that this method is used only if the NetBIOS name
32 type being queried is the 0x20 (server) name type or 0x1c (domain controllers). The latter case is only
33 useful for active directory domains and results in a DNS query for the SRV RR entry matching
39 <para><constant>wins</constant> : Query a name with
40 the IP address listed in the <smbconfoption name="WINSSERVER"><parameter moreinfo="none">
41 wins server</parameter></smbconfoption> parameter. If no WINS server has
42 been specified this method will be ignored.</para>
46 <para><constant>bcast</constant> : Do a broadcast on
47 each of the known local interfaces listed in the <smbconfoption name="interfaces"/>
48 parameter. This is the least reliable of the name resolution
49 methods as it depends on the target host being on a locally
50 connected subnet.</para>
54 <para>The example below will cause the local lmhosts file to be examined
55 first, followed by a broadcast attempt, followed by a normal
56 system hostname lookup.</para>
58 <para>When Samba is functioning in ADS security mode (<command moreinfo="none">security = ads</command>)
59 it is advised to use following settings for <parameter moreinfo="none">name resolve order</parameter>:</para>
61 <para><command moreinfo="none">name resolve order = wins bcast</command></para>
63 <para>DC lookups will still be done via DNS, but fallbacks to netbios names will
64 not inundate your DNS servers with needless querys for DOMAIN<0x1c> lookups.</para>
68 <value type="default">lmhosts wins host bcast</value>
69 <value type="example">lmhosts bcast host</value>