HP A4500A - VMEbus Single Board Computer 744... Instruction Manual

CIFS/9000 Client Release Note
Version A.01.08
Manufacturing Part Number : B8724-90023
AR0902
U.S.A.
© Copyright 2002 Hewlett-Packard Company.

2
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CIFS/9000 Client A.01.08
Announcement
Chapter 1 3
1 CIFS/9000 Client A.01.08
Announcement
NOTE For the latest information on the CIFS/9000 Client, refer to the
CIFS/9000 product documentation in the Networking and
Communications section of the HP documentation website:
http://docs.hp.com/
With CIFS/9000, Hewlett-Packard provides a Common Internet File
System (CIFS) implementation on HP-UX 11.i. CIFS is the Microsoft
protocol for remote file access. It is built into all recent Windows
operating systems, including Windows 95, 98, NT, and 2000. By
providing both server and client, CIFS/9000 provides file and print inter
operability for environments with any mix of UNIX and Windows
platforms.
The CIFS/9000 Server allows Microsoft and CIFS/9000 Clients to access
the server’s file system. The CIFS/9000 Client can mount file systems
made shareable by Windows, CIFS/9000 servers, or ASU/9000.
CIFS/9000 also provides PAM NTLM, which is used to authenticate
users logging into HP-UX system against Windows NT servers.

CIFS/9000 Client A.01.08
About This Document
Chapter 14
About This Document
The technical contents of this document are identical to that of the
IA1122 (June 2002) release.
As of this release, the A.01.08 version of the CIFS Client supports the
following versions of HP-UX:
• HP-UX 11.0
• HP-UX 11i
• HP-UX 11.22

CIFS/9000 Client A.01.08
What’s New in Version A.01.08?
Chapter 1 5
What’s New in Version A.01.08?
This release contains the following enhancements:
• Error reporting by PAM-NTLM
Error reporting by the PAM-NTLM module has been enhanced such
that if PAM-NTLM cannot connect to the password server, an
appropriate message is written to syslog.

CIFS/9000 Client A.01.08
Features and Fixes in Recent Releases
Chapter 16
Features and Fixes in Recent Releases
The following features and fixes are listed, beginning with the most
recent.
• PAM-NTLM can fail to handle Unix password expiration
A fix has been implemented for a problem wherein a user with an
expired Unix password can login to the host system without being
forced to change their expired password. This occurs only if the
recommended “stacked” configuration of libpam_ntlm.1 and
libpam_unix.1 is used and the user is not authenticated by the
NTLM server. With this fix, PAM-UNIX forces the user to change
their expired Unix password, as expected.
• Disconnected user sessions cannot reconnect
This enhancement enables user connections that have been
terminated by the server to be automatically re-established when the
user attempts to access the server.
• Logfile truncation at max size does not work
This fix enforces the maximum logfile size of 50 Mbytes. If the logfile
reaches this size, it is saved with .prev appended to its name
(overwriting any other previously saved copy). The logfile is then
restarted from 0 bytes.
• Incorrect timestamp after DST switch
This fix improves the synchronization of file timestamps between
CIFS/9000 clients and Windows servers, when the time changes
between standard and daylight savings time.
• NetBIOS scope broken if scope has embedded period (“.”) character(s)
This fixes a bug in the parsing of NetBIOS scope. Scope is an old
feature of the CIFS protocol and its use is discouraged.
• Some Japanese multibyte characters cannot be used
The Japanese-language character-map files for ShiftJIS encoding
have been modified to include symbols for integers-in-circles in the
range [1 - 20], and various mathematical, Katakana and other
symbols. 74 character mappings have been added.
• Latest revision of CIFS Unix Extensions, v2.1

CIFS/9000 Client A.01.08
Features and Fixes in Recent Releases
Chapter 1 7
The Hewlett-Packard-authored CIFS Unix Extensions enable
standard Unix file system semantics, such as symbolic links, file
ownership and permissions to be implemented within the CIFS
protocol. The latest revision of the specification, developed in
collaboration with the Samba open-source project, provides greater
inter operability through a new model for handling file sizes across
platforms.
It is highly recommended that customers upgrade to version A.01.07
of the CIFS/9000 Client if they will be connecting to servers that
support the v2.1 specification. These servers include CIFS/9000
Servers, version A.01.07 and Samba Servers, version 2.2.3. The
implementation of the v2.1 specification, in version A.01.07 of the
CIFS/9000 Client, is backwards compatible with previous
implementations of the specification in versions A.01.07, and earlier,
of the CIFS/9000 Server.
• ASCII decode of hexadecimal NetBIOS traces
The CIFS Client “netbiosTrace” log level option now also displays the
ASCII equivalent of the default hexadecimal byte-stream. Users are
reminded that log levels should be left at their default settings
unless they are required for troubleshooting since increased log
levels impede performance.
• A change has been implemented in the caching of file attributes that
improves synchronization of directory listings on the client with
actual file attributes on the server.
• The section on configuring the PAM-NTLM module in the Installing
and Administering the CIFS/9000 Client manual contains new and
updated information regarding the use of password servers and
WINS servers. HP suggests incorporating the wins server parameter
into your existing smb.conf file as shown in the new version of
smb.conf.default. These files are located in /etc/opt/cifsclient/pam.
• Default value increased for SMB time-outs
The default configured value for requestTimeout has been increased
from 20 seconds to 60 seconds. For slow networks, or environments
with slow servers or links, this helps prevent the CIFS/9000 client
from entering an unstable state that can result when a connection is
dropped due to an unanswered SMB request.

CIFS/9000 Client A.01.08
Features and Fixes in Recent Releases
Chapter 18
• Duplicate NFS requests filtered by the CIFS/9000 Client
This improves reliability of the NFS interface to the CIFS/9000
client.
• NFS attribute-caching is now configurable
This enhancement allows you to turn on NFS attribute caching,
which can improve performance of certain operations, such as
creating tar(1) archives of large numbers of files residing on
mounted CIFS file systems. The default setting is
nfsAttributeCaching = no, which maintains the same behavior as
in previous releases.
• Korean Language support
A new character mapping file, unimap-eucKR.cfg, allows for support
of localized Korean HP-UX systems with the CIFS/9000 client. See
the Installing and Administering the CIFS/9000 Client manual for
an explanation of how to configure character-map files.
Other Information
NOTE The following information about the mountall(1M) command applies
only to HP-UX versions B.11.00 and B.11.11.
A new version of the HP-UX mountall(1M) command has been issued as
patch PHCO_24777. This patch fixes two problems that can occur in any
release of the CIFS Client. The problems arise when there are CIFS
entries in /etc/fstab and involve extraneous error or warning messages.
In one case, if the CIFS Client is configured to start at boot, a misleading
error is placed in /etc/rc.log. The message will resemble the following:
Mount file systems
Output from “/sbin/rc1.d/S100localmount start”:
----------------------------
mountall: cannot mount server:/share
mountall: diagnostics from mount
ipcclient: error connecting to daemon: [239] Connection
refused
ipcclient: CIFS Client is down.

CIFS/9000 Client A.01.08
Features and Fixes in Recent Releases
Chapter 1 9
In another case, swinstall, when used to install any software, will stop
or exit, forcing the user to set mount_all_filesystems=false.
The patch is available at either of these web sites:
Americas and Asia-Pacific: http://us-support.external.hp.com/
Europe: http://europe-support.external.hp.com/
Troubleshooting Information for PAM-NTLM
• If you are having difficulty accessing the password server configured
in smb.conf, PAM-NTLM can utilize an lmhosts file on the local
system to look up its address. To utilize this functionality, create the
file, /etc/opt/samba/lmhosts, containing entries, one per line, in the
following format where netbios_name is the password server used by
PAM-NTLM.
ip_address <one or more tabs or spaces> netbios_name
• If you are going to remove the PAM-NTLM fileset (or the entire
CIFS/9000 Client) from your system, ensure that all references to the
libpam_ntlm.1 library have been removed from /etc/pam.conf. Your
system can become inaccessible if PAM-NTLM is configured in
/etc/pam.conf but the PAM-NTLM libraries are removed from the
system.
• Use caution when editing /etc/pam.conf. You should have a good
understanding of the PAM framework before modifying this file. A
misconfigured /etc/pam.conf can make the system inaccessible or
cause a serious security breach, such as allowing root access to
anyone, without a password. See the reference to pam.conf in section
4 of the HP-UX manpages and in the PAM-NTLM Configuration
section in Installing and Administering the CIFS/9000 Client.
Recommended Configuration Values
HP recommends changing the value of the following three configuration
parameters to their new default values:
•runAsUser
•requestTimeout
•nfsAttributeCaching (you will need to add this one)

CIFS/9000 Client A.01.08
Features and Fixes in Recent Releases
Chapter 110
You can either compare the new default file,
/etc/opt/cifsclient.cfg.default, to your existing cifsclient.cfg, or make the
modifications manually. Leave the cifsclient.cfg.default file unchanged
and use it as a reference.
NOTE If you have not customized your configuration file in any way, you can
simply copy cifsclient.cfg.default over your existing cifsclient.cfg.
Use the following instructions to change to the new configuration
parameters:
1. Change the value of runAsUser to runAsUser = “root”.runAsUser
is in the global settings near the beginning of the file. Changing this
value to = ”root” allows the CIFS/9000 client to create a core file in
case of an unexpected abort.
2. Change the value of requestTimeout to 60 seconds (the value is
specified in milliseconds, so requestTimeout = 60000).
requestTimeout is in the “defaultServer = {...}” section at
approximately line 208.
3. Add the following nfsAttributeCaching entry in the
“defaultServer” section: nfsAttributeCaching = no. Adding
this value will have no effect if you are not upgrading to the current
version of the CIFS/9000 client. nfsAttributeCaching can = yes or
no.
Benefits and Features
See the Installing and Administering the CIFS/9000 Client manual for
details on the following features. The latest version can be found at
http://docs.hp.com
• Integration with Unix mount commands
The mount(1M)and umount(1M)commands can now be used for
operations on CIFS file systems.
• Support for Internationalized Clients
A variety of internationalized clients can be supported with the