NSMBRC(4)NSMBRC(4)NAMEnsmbrc - configuration file for Solaris CIFS client requests
SYNOPSIS
$HOME/.nsmbrc
DESCRIPTION
Global behavior of the Solaris CIFS client is defined by property val‐
ues that are stored in the Service Management Facility (SMF). The .nsm‐
brc file can be used to customize the behavior of the Solaris CIFS
client on a per-user basis. Settings in the $HOME/.nsmbrc file are used
unless they have security implications.
An authorized user can use the sharectl command to set global values
for these properties in SMF. See sharectl(1M).
A regular user can change the global values when granted the "SMBFS
Management" rights profile in the /user_attr file. See user_attr(4) and
rbac(5).
The SMBFS library first reads from SMF and then the $HOME/.nsmbrc file
when determining which policy to apply to a particular server, user, or
share. $HOME/.nsmbrc entries take precedence with the exception of the
minauth property value. For minauth, the strongest authentication level
specified is used. Sections are applied so that more specific sections
override less specific sections. Not all keywords are valid in all sec‐
tions.
The configuration file is comprised of these four section types. Each
section can include zero or more properties and associated values. The
sections also have a hierarchical relationship with each other, as
shown by the order of the following list:
o Default section. Specifies the default property values to be
used by all other sections unless specifically overridden.
The section name appears in the .nsmbrc file as [default].
o Server section. Specifies the property values to be used by
sections that are related to the named server. These prop‐
erty values can be specifically overridden by a related user
section or share section.
The section name appears in the .nsmbrc file as [server-
name]. server-name must use uppercase characters to match.
o User section. Specifies the property values to be used by
sections that are related to the named server and user.
These property values can be specifically overridden by a
related share section.
The section name appears in the .nsmbrc as [server-
name:username]. Both server-name and username must use
uppercase characters to match.
o Share section. Specifies the property values to be used by
sections that are related to the named server, user, and
share.
The section name appears in the .nsmbrc as [server-
name:username:share-name]. Both server-name and username
must use uppercase characters to match.
The end of each section is marked either by the start of a new section
or by an end of file (EOF).
The following list describes the properties and states in which sec‐
tions they can be set:
addr
Specifies the DNS name or IP address of the CIFS server. This prop‐
erty can only be set in a server section. If this property is spec‐
ified, it must specify a value as there is no default.
domain
Specifies the Windows domain name to use when authenticating with a
server. The default value is WORKGROUP. This property can only be
set in the default and server sections.
minauth
Is the minimum authentication level required, which can be one of
kerberos, ntlmv2, ntlm, lm, or none. If minauth is set globally and
in a user's .nsmbrc file, the stronger authentication setting are
used whether set by the user or globally. This property can only
be set in the default and server sections. The default value is
ntlm.
nbns
Specifies the DNS name or IP address of the NetBIOS/WINS name
server. This property can only be set by an administrator by using
the sharectl command. This property can only be set in the default
section. The default value is empty, nbns="".
nbns_broadcast
Specifies whether to perform NetBIOS/WINS broadcast lookups. Broad‐
cast lookups are less secure than unicast lookups. To prevent
broadcast lookups, set the value to no. This property has no effect
if the nbns_enable property is set to no or false. This property
can only be set by an administrator by using the sharectl command.
This property can only be set in the default section. Valid values
are yes, true, no, and false. The default value is yes.
nbns_enable
Specifies whether to perform NetBIOS/WINS name lookups. To force
all lookups to be done through the name service switch (see nss‐
witch.conf(4)), set the value to no. This property can only be set
by an administrator by using the sharectl command. This property
can only be set in the default section. Valid values are yes, true,
no, and false. The default value is yes.
password
Specifies the password to use when authenticating a server. The
password property value is used as long as the .nsmbrc file can
only be read and written by the owner. This property can be set in
the default, server, user, and share sections.
If you assign the hashed password from the smbutil crypt command to
the password property, be sure to escape the special characters in
the password.
signing
Specifies whether communications are digitally signed by SMB secu‐
rity signatures for the Solaris CIFS client. This property can only
be set in the default and server sections. Valid values are dis‐
abled, enabled, and required. The default value is disabled.
When set to disabled, the client permits the use of SMB security
signatures only if the server requires signing. In such an
instance, the Solaris CIFS client ignores local property values.
When set to enabled, the client permits, but does not require, the
use of SMB security signatures.
When set to required, the client requires the use of SMB security
signatures. So, if SMB security signatures are disabled on a CIFS
server and a client has signing required, the client cannot connect
to that server.
timeout
Specifies the CIFS request timeout. By default, the timeout is 15
seconds. This property can only be set in the default, server, and
share sections.
user
Specifies the user name to use when authenticating a server. The
default value is the Solaris account name of the user performing
the authentication. This property can only be set in the default
and server sections.
workgroup
Is supported for compatibility purposes and is a synonym for the
domain property. Use the domain property instead.
EXAMPLES
The examples in this section show how to use the .nsmbrc file and the
smbutil command to configure the ex.com environment.
The ex.com environment is described by means of these sections and set‐
tings:
o The default section describes the default domain, which is
called MYDOMAIN, and sets a default user of MYUSER. These
default settings are inherited by other sections unless
property values are overridden.
o FSERVER is a server section that defines a server called
fserv.ex.com. It is part of the SALES domain.
o RSERVER is a server section that defines a server called
rserv.ex.com that belongs to a new domain called REMGROUP.
Example 1 Using the $HOME/.nsmbrc Configuration File
The following example shows how a user can configure the ex.com envi‐
ronment by creating the .nsmbrc file.
All lines that begin with the # character are comments and are not
parsed.
# Configuration file for ex.com
# Specify the Windows account name to use everywhere.
[default]
domain=MYDOMAIN
user=MYUSER
# The 'FSERVER' is server in our domain.
[FSERVER]
addr=fserv.ex.com
# The 'RSERVER' is a server in another domain.
[RSERVER]
domain=REMGROUP
addr=rserv.ex.com
Example 2 Using the sharectl Command
The following example shows how an authorized user can use sharectl
commands to configure global settings for the ex.com environment in
SMF.
# sharectl set -p section=default -p domain=MYDOMAIN \
-p user=MYUSER smbfs
# sharectl set -p section=FSERVER -p addr=fserv.ex.com smbfs
# sharectl set -p section=RSERVER -p domain=REMGROUP \
-p addr=rserv.ex.com smbfs
Example 3 Using the sharectl Command to Show Current Settings
The following example shows how an authorized user can use the sharectl
get command to view the global settings for smbfs in SMF. The values
shown are those set by the previous example.
# sharectl get smbfs
[default]
domain=MYDOMAIN
user=MYUSER
[FSERVER]
addr=fserv.ex.com
[RSERVER]
domain=REMGROUP
addr=rserv.ex.com
FILES
$HOME/.nsmbrc
User-settable mount point configuration file to store the descrip‐
tion for each connection.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Committed │
└────────────────────┴─────────────────┘
SEE ALSOsmbutil(1), mount_smbfs(1M), sharectl(1M), nsswitch.conf(4),
user_attr(4), attributes(5), rbac(5), smbfs(7FS)NOTES
By default, passwords stored in the .nsmbrc file are ignored unless
only the file owner has read and write permission.
Dec 8, 2008 NSMBRC(4)
