This option is used by the programs in the Samba
suite to determine what naming services to use and in what order
to resolve host names to IP addresses. Its main purpose to is to
control how netbios name resolution is performed. The option takes a space
separated string of name resolution options.
The options are: "lmhosts", "host",
"wins" and "bcast". They cause names to be
resolved as follows:
lmhosts : Lookup an IP address in the Samba lmhosts file. If the line in lmhosts has no name type attached to the NetBIOS name (see the manpage for lmhosts for details) then any name type matches for lookup.
host : Do a standard host name to IP address resolution, using the system /etc/hosts , NIS, or DNS lookups. This method of name resolution is operating system depended for instance on IRIX or Solaris this may be controlled by the /etc/nsswitch.conf file. Note that this method is used only if the NetBIOS name type being queried is the 0x20 (server) name type or 0x1c (domain controllers). The latter case is only useful for active directory domains and results in a DNS query for the SRV RR entry matching _ldap._tcp.domain.
wins : Query a name with the IP address listed in the wins server parameter. If no WINS server has been specified this method will be ignored.
bcast : Do a broadcast on each of the known local interfaces listed in the parameter. This is the least reliable of the name resolution methods as it depends on the target host being on a locally connected subnet.
The example below will cause the local lmhosts file to be examined
first, followed by a broadcast attempt, followed by a normal
system hostname lookup.
When Samba is functioning in ADS security mode (security = ads)
it is advised to use following settings for name resolve order:
name resolve order = wins bcast
DC lookups will still be done via DNS, but fallbacks to netbios names will not inundate your DNS servers with needless queries for DOMAIN<0x1c> lookups.
Example: lmhosts bcast host
|Registry Path||Software\Policies\Samba\smb_conf\name resolve order|
|Value Name||name resolve order|
|Default Value||lmhosts wins host bcast|