read/write,write/write lock with smbclient fails


 
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Old 03-05-2010
read/write,write/write lock with smbclient fails

Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the smb.conf file:
lock directory =/var/samba/lock
locking=yes
strict locking = no
oplocks=yes
level2 oplocks = no
kernel oplocks =yes
raw read= yes
raw write = yes
Could anyone please let me know that what can I do to disallow read while write is going on and also restrict simultaneous writes?
 
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sharing(8)						    BSD System Manager's Manual 						sharing(8)

NAME
sharing -- create share points for afp and smb services. SYNOPSIS
sharing [-a <path> [options]] [-e <share point name> [options]] [-r <share point name>] [-l] DESCRIPTION
A list of flags and their descriptions: -a <path> Add a new share point for the directory specified by <path>. -e <share point name> Edit the share point record specified by <share point name>. -r <share point name> Delete the share point record specified by <share point name>. -l List all existing share point records. The following options modify share point record attributes: -A <afp name> Use customized name <afp name> when using share point with afp. -S <smb name> Use customized name <smb name> when using share points with smb. -s <flags> Use this option to enable and disable sharing via afp and smb. By default a share point is enabled for afp and smb protocols. To enable and disable particular services, combine (binary AND) the following flags as required: 100 (enable sharing for afp) and 001 (enable sharing for smb). Specify 000 to turn off sharing of a share point altogether. -g <guest flag> Use this option to enable and disable guest access for afp and smb. By default guest access is enabled for afp and smb. To enable and disable guest access to particular services, combine (binary AND) the following flags as required: 100 (enable guest for afp) and 001 (enable guest for smb). Specify 000 to turn off guest access for a share point altogether. -i <inherit privileges flag> Use this option to enable and disable the "inherit privileges" attribute for afp. By default "inherit privileges" is enabled for afp. To enable "inherit privileges", combine (binary AND) the following flags as required: 10 ("inherit privileges" for afp). Specify 00 to turn off "inherit privileges" for a share point altogether. -n <customized record name> Specify a <customized record name> to be used as the share point record name. By default the record name is the name of the direc- tory pointed to by the share point record. This directory is specified by the <path> when the record is created. EXAMPLES
/usr/sbin/sharing -a /SomePath/ShareThisDirectory This example shows how to create a share point for the directory "/SomePath/ShareThisDirectory": /usr/sbin/sharing -e ShareThisDirectory -A SP1 -g 101 This example shows how to edit the share point record created above, adding a customized name "SP1" for afp servies, and enabling guest access only for afp and smb. FILES
/usr/sbin/sharing location of tool macOS June 1, 2019 macOS