scott@bolanderhome.com
2003-Dec-11 20:24 UTC
[Samba] Network Disconnection problems - Please Help
I have a persistant problem at a client site. This is the error I am
getting in /var/log/messages:
Dec 10 09:03:41 fileserver smbd[7652]: [2003/12/10 09:03:41, 0] lib/
util_sock.c:read_data(436)
Dec 10 09:03:41 fileserver smbd[7652]: read_data: read failure for 4.
Error = Connection reset by peer
No errors in log.smbd
Here is the Layout:
Three clients:
Win2000
Win2000
WinXP Pro
Server:
Mandrake 9.2
Samba Verion 2.28
All current patches and updates installed
Network card: 3Com 3c905b
PII-450
256Mb SDRAM
40Gb Hard Drive (IDE)
Network:
10/100 switched (U.S. Robotics SOHO 8 port Switch)
Cat-5 Wiring
All PCs have 10/100 network cards in them.
Primary use of server is to share Quickbooks files to the other computers.
This is where the problem is. Once or twice a day they get booted out of
the client file that they are in. This corresponds with the error in the
log. This is a big problem for the customer.
The main user was gone last week; and no errors occurred for the other
users all week. Her machine was on but not used during this time.
Here are the steps I have taken:
*ALL new hardware in server with the exception of the hard drive
*Replaced Switch
*Ran new cable to machine with most issues
*Replaced Network card in machine that was unoccupied last week.
*Checked network settings on clients - removed extra protocal (netbeui,
etc)
*Mapped clients directly to Server IP address to exclude name resolution
issues.
*Made TCPDUMP log - during errors there is no unusual messages in this
*Played with smb.conf setting - including trying different locking things
and such. Bear in mind that the clients are NOT working within the same
account file - so there should be no locking or sharing issue there
*Set dead time=0
I REALLY need to get this fixed - it is a big problem. Let me know if
more info is needed.
Here is my smb.conf:
[global]
encrypt passwords = yes
os level = 20
map to guest = bad user
printing = cups
preferred master = no
security = user
load printers = yes
printer admin = @adm
dns proxy = no
smb passwd file = /etc/samba/smbpasswd
log file = /var/log/samba/log.%m
server string = Samba Server %v
printcap name = cups
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
workgroup = MDKGROUP
max log size = 50
[homes]
comment = Home Directories
browseable = no
writable = yes
[pdf-generator]
path = /var/tmp
guest ok = No
printable = Yes
comment = PDF Generator (only valid users)
#print command = /usr/share/samba/scripts/print-pdf file path win_path
recipient
IP doc_name &
print command = /usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I &
[pdf-screen]
copy = pdf-generator
comment = PDF Generator - Screen quality (only valid users)
print command=/usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I
""
%S &
[pdf-printer]
copy = pdf-generator
comment = PDF Generator - Print quality (only valid users)
print command=/usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I
""
%S &
[pdf-prepress]
copy = pdf-generator
comment = PDF Generator - PrePress quality (only valid users)
print command=/usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I
""
%S &
[files]
path = /files
sync always = yes
delete readonly = yes
writeable = yes
guest account = root
public = yes
Here is my log.smbd:
[2003/11/22 15:20:00, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/22 15:20:00, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/22 16:43:11, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/22 16:43:11, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/24 08:07:35, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/24 08:07:35, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/24 08:17:03, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/24 08:17:03, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/27 01:55:08, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/27 01:55:08, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/12/09 12:39:52, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/12/09 12:39:52, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
Here is the results of ifconfig:
eth0 Link encap:Ethernet HWaddr 00:10:4B:67:47:A2
inet addr:192.168.0.200 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1148931 errors:1 dropped:0 overruns:0 frame:1
TX packets:1103423 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:612519847 (584.1 Mb) TX bytes:883590537 (842.6 Mb)
Interrupt:10 Base address:0xdc00
Scott Bolander
Computer Services of Cincinnati
http://www.cincysystems.com
scott@cincysystems.com
scott@bolanderhome.com
2003-Dec-12 03:06 UTC
[Samba] Network Disconnection problems - Please Help
I have a persistant problem at a client site. This is the error I am
getting in /var/log/messages:
Dec 10 09:03:41 fileserver smbd[7652]: [2003/12/10 09:03:41, 0] lib/
util_sock.c:read_data(436)
Dec 10 09:03:41 fileserver smbd[7652]: read_data: read failure for 4.
Error = Connection reset by peer
No errors in log.smbd
Here is the Layout:
Three clients:
Win2000
Win2000
WinXP Pro
Server:
Mandrake 9.2
Samba Verion 2.28
All current patches and updates installed
Network card: 3Com 3c905b
PII-450
256Mb SDRAM
40Gb Hard Drive (IDE)
Network:
10/100 switched (U.S. Robotics SOHO 8 port Switch)
Cat-5 Wiring
All PCs have 10/100 network cards in them.
Primary use of server is to share Quickbooks files to the other computers.
This is where the problem is. Once or twice a day they get booted out of
the client file that they are in. This corresponds with the error in the
log. This is a big problem for the customer.
The main user was gone last week; and no errors occurred for the other
users all week. Her machine was on but not used during this time.
Here are the steps I have taken:
*ALL new hardware in server with the exception of the hard drive
*Replaced Switch
*Ran new cable to machine with most issues
*Replaced Network card in machine that was unoccupied last week.
*Checked network settings on clients - removed extra protocal (netbeui,
etc)
*Mapped clients directly to Server IP address to exclude name resolution
issues.
*Made TCPDUMP log - during errors there is no unusal messages in this
*Played with smb.conf setting - including trying different locking things
and such. Bear in mind that the clients are NOT working within the same
account file - so there should be no locking or sharing issue there
I REALLY need to get this fixed - it is a big problem. Let me know if
more info is needed.
Here is my smb.conf:
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options (perhaps too
# many!) most of which are not shown in this example
#
# Any line which starts with a ; (semi-colon) or a # (hash)
# is a comment and is ignored. In this example we will use a #
# for commentry and a ; for parts of the config file that you
# may wish to enable
#
# NOTE: Whenever you modify this file you should run the command
"testparm"
# to check that you have not made any basic syntactic errors.
#
#======================= Global Settings
====================================[global]
encrypt passwords = yes
os level = 20
map to guest = bad user
printing = cups
preferred master = no
security = user
load printers = yes
printer admin = @adm
dns proxy = no
smb passwd file = /etc/samba/smbpasswd
log file = /var/log/samba/log.%m
server string = Samba Server %v
printcap name = cups
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
workgroup = MDKGROUP
max log size = 50
[homes]
comment = Home Directories
browseable = no
writable = yes
# You can enable VFS recycle bin on a per share basis:
# Uncomment the next 2 lines (make sure you create a
# .recycle folder in the base of the share and ensure
# all users will have write access to it. See
# examples/VFS/recycle/REAME in samba-doc for details
; vfs object = /usr/lib/samba/vfs/recycle.so
; vfs options= /etc/samba/recycle.conf
# You may want to prevent abuse of your server disk space, and spread of
virii
; veto files = /*.eml/*.nws/*.dll/*.mp3/*.MP3/*.mpg/*.MPG/*.vbs/*.VBS/
# Un-comment the following and create the netlogon directory for Domain
Logons
; [netlogon]
; comment = Network Logon Service
; path = /var/lib/samba/netlogon
; guest ok = yes
; writable = no
#Uncomment the following 2 lines if you would like your login scripts to
#be created dynamically by ntlogon (check that you have it in the correct
#location (the default of the ntlogon rpm available in contribs)
;root preexec = /usr/bin/ntlogon -u %U -g %G -o %a -d
/var/lib/samba/netlogon/
;root postexec = rm -f /var/lib/samba/netlogon/%U.bat
# Un-comment the following to provide a specific roving profile share
# the default is to use the user's home directory
;[Profiles]
; path = /var/lib/samba/profiles
; browseable = no
; guest ok = yes
; writable = yes
# This script can be enabled to create profile directories on the fly
# You may want to turn off guest acces if you enable this, as it
# hasn't been thoroughly tested.
; root preexec = PROFILE=/var/lib/samba/profiles/%u; if [ ! -e $PROFILE
]; \
; then mkdir -pm700 $PROFILE; chown %u.%g $PROFILE;fi
# NOTE: If you have a CUPS print system there is no need to
# specifically define each individual printer.
# You must configure the samba printers with the appropriate Windows
# drivers on your Windows clients. On the Samba server no filtering is
# done. If you wish that the server provides the driver and the clients
# send PostScript ("Generic PostScript Printer" under Windows), you
have
# to swap the 'print command' line below with the commented one.
[printers]
comment = All Printers
path = /var/spool/samba
browseable = no
# to allow user 'guest account' to print.
guest ok = yes
writable = no
printable = yes
create mode = 0700
# ====================================# print command: see above for details.
# ==================================== print command = lpr-cups -P %p -o raw
%s -r # using client side
printer drivers.
; print command = lpr-cups -P %p %s -r # using cups own drivers (use
generic
PostScript on clients).
# The following two commands are the samba defaults for printing=cups
# change them only if you need different options:
; lpq command = lpq -P %p
; lprm command = cancel %p-%j
# This share is used for Windows NT-style point-and-print support.
# To be able to install drivers, you need to be either root, or listed
# in the printer admin parameter above. Note that you also need write access
# to the directory and share definition to be able to upload the drivers.
# For more information on this, please see the Printing Support Section of
# /usr/share/doc/samba-<version>/docs/Samba-HOWTO-Collection.pdf
[print$]
path = /var/lib/samba/printers
browseable = yes
read only = yes
write list = @adm root
guest ok = yes
# A useful application of samba is to make a PDF-generation service
# To streamline this, install windows postscript drivers (preferably colour)
# on the samba server, so that clients can automatically install them.
[pdf-generator]
path = /var/tmp
guest ok = No
printable = Yes
comment = PDF Generator (only valid users)
#print command = /usr/share/samba/scripts/print-pdf file path win_path
recipient
IP doc_name &
print command = /usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I &
[pdf-screen]
copy = pdf-generator
comment = PDF Generator - Screen quality (only valid users)
print command=/usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I
""
%S &
[pdf-printer]
copy = pdf-generator
comment = PDF Generator - Print quality (only valid users)
print command=/usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I
""
%S &
[pdf-prepress]
copy = pdf-generator
comment = PDF Generator - PrePress quality (only valid users)
print command=/usr/share/samba/scripts/print-pdf %s ~%u //%L/%u %m %I
""
%S &
# This one is useful for people to share files
;[tmp]
; comment = Temporary file space
; path = /tmp
; read only = no
; public = yes
# A publicly accessible directory, but read only, except for people in
# the "staff" group
;[public]
; comment = Public Stuff
; path = /home/samba/public
; public = yes
; writable = no
; write list = @staff
# Audited directory through experimental VFS audit.so module:
# Uncomment next line.
; vfs object = /usr/lib/samba/vfs/audit.so
# Other examples.
#
# A private printer, usable only by Fred. Spool data will be placed in
Fred's
# home directory. Note that fred must have write access to the spool
directory,
# wherever it is.
;[fredsprn]
; comment = Fred's Printer
; valid users = fred
; path = /homes/fred
; printer = freds_printer
; public = no
; writable = no
; printable = yes
# A private directory, usable only by Fred. Note that Fred requires write
# access to the directory.
;[fredsdir]
; comment = Fred's Service
; path = /usr/somewhere/private
; valid users = fred
; public = no
; writable = yes
; printable = no
# a service which has a different directory for each machine that connects
# this allows you to tailor configurations to incoming machines. You could
# also use the %u option to tailor it by user name.
# The %m gets replaced with the machine name that is connecting.
;[pchome]
; comment = PC Directories
; path = /usr/pc/%m
; public = no
; writable = yes
# A publicly accessible directory, read/write to all users. Note that all
files
# created in the directory by users will be owned by the default user, so
# any user with access can delete any other user's files. Obviously this
# directory must be writable by the default user. Another user could of
course
# be specified, in which case all files would be owned by that user instead.
;[public]
; path = /usr/somewhere/else/public
; public = yes
; only guest = yes
; writable = yes
; printable = no
# The following two entries demonstrate how to share a directory so that two
# users can place files there that will be owned by the specific users. In
this
# setup, the directory should be writable by both users and should have the
# sticky bit set on it to prevent abuse. Obviously this could be extended to
# as many users as required.
;[myshare]
; comment = Mary's and Fred's stuff
; path = /usr/somewhere/shared
; valid users = mary fred
; public = no
; writable = yes
; printable = no
; create mask = 0765
[files]
path = /files
sync always = yes
delete readonly = yes
writeable = yes
guest account = root
public = yes
Here is my log.smbd:
[2003/11/22 15:20:00, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/22 15:20:00, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/22 16:43:11, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/22 16:43:11, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/24 08:07:35, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/24 08:07:35, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/24 08:17:03, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/24 08:17:03, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/11/27 01:55:08, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/11/27 01:55:08, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
[2003/12/09 12:39:52, 0] smbd/server.c:main(791)
smbd version 2.2.8a started.
Copyright Andrew Tridgell and the Samba Team 1992-2002
[2003/12/09 12:39:52, 0] printing/print_cups.c:cups_printer_fn(107)
Unable to connect to CUPS server localhost - Connection refused
Here is the results of ifconfig:
eth0 Link encap:Ethernet HWaddr 00:10:4B:67:47:A2
inet addr:192.168.0.200 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1148931 errors:1 dropped:0 overruns:0 frame:1
TX packets:1103423 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:612519847 (584.1 Mb) TX bytes:883590537 (842.6 Mb)
Interrupt:10 Base address:0xdc00
Scott Bolander
Computer Services of Cincinnati
http://www.cincysystems.com
scott@cincysystems.com