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Special Forums News, Links, Events and Announcements Software Releases - RSS News Scannedonly 0.11 (Default branch)
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Old 01-18-2008
Scannedonly 0.11 (Default branch)
Scannedonly is a samba VFS module that ensures that only files that have been scanned for viruses are visible and accessible to the end user. Scannedonly was developed because of scalability problems with samba-vscan. Scannedonly comes in two parts: a Samba VFS module and (one or more) daemons. The daemon scans files and marks them when they are known to be clean. The samba module simply filters out files that aren't marked clean. License: GNU General Public License (GPL) Changes:
The scannedonly samba VFS module features new options to make it look like scannedonly does on-access scanning as long as the file is small enough to be scanned within a certain timeout. The clamav daemon, furthermore, now automatically refreshes the clam database when required.Image

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vfs_preopen

VFS_PREOPEN(8)						    System Administration tools 					    VFS_PREOPEN(8)

NAME

       vfs_preopen - Hide read latencies for applications reading numbered files

SYNOPSIS

       vfs objects = preopen

DESCRIPTION

       This VFS module is part of the samba(7) suite.

       This module assists applications that want to read numbered files in sequence with very strict latency requirements. One area where this
       happens in video streaming applications that want to read one file per frame.

       When you use this module, a number of helper processes is started that speculatively open files and read a number of bytes to prime the
       file system cache, so that later on when the real application's request comes along, no disk access is necessary.

       This module is stackable.

OPTIONS

       preopen:names = /pattern/
	   preopen:names specifies the file name pattern which should trigger the preopen helpers to do their work. We assume that the files are
	   numbered incrementally. So if your file names are numbered FRAME00000.frm FRAME00001.frm and so on you would list them as
	   preopen:names=/FRAME*.frm/

       preopen:num_bytes = BYTES
	   Specifies the number of bytes the helpers should speculatively read, defaults to 1.

       preopen:helpers = NUM-PROCS
	   Number of forked helper processes, defaults to 1.

       preopen:queuelen = NUM-FILES
	   Number of files that should be speculatively opened. Defaults to the 10 subsequent files.

VERSION

       This man page is correct for version 3.3 of the Samba suite.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

       The PREOPEN VFS module was created with contributions from Volker Lendecke and the developers at IBM.

Samba 4.0							    06/17/2014							    VFS_PREOPEN(8)