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