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       clamfs - an anti-virus protected file system


       clamfs <configuration.file>


       This manual page documents briefly the ClamFS user-space file system.

       clamfs  is  a  program that mount anti-virus protected file system into
       existing directory tree.

       * User-space file system (no kernel patches, recompilation, etc.)

       * Configuration stored in XML files

       * FUSE (and libfuse) used as file system back-end

       * Scan files using ClamAV

       * ScanCache (LRU with time-based and out-of-memory  expiration)  speeds
              up file access

       * Sends mail to administrator when detect virus

       ClamFS is completely user-space anti-virus solution for Linux.  It uses
       libfuse and Linux kernel module to provide file system.  ClamAV is used
       as anti-virus scanner.

       Normally  program  (or  library)  uses glibc open() call to obtain file
       descriptor.  Glibc calls kernel VFS to open  file  regardless  of  file
       system  used.   If  file is on ClamFS file system open call from VFS is
       directed to user-space by FUSE.  ClamFS calls  libfuse  to  communicate
       with FUSE and through it with VFS.

       ClamFS is spitted into four parts:

       *  libfuse  bindings  --  used  to  communicate with FUSE (and with VFS
              through it),

       * ScanCache -- store (per file) results of anti-virus scanning to speed
              up future open() requests

       * ScanQueue -- queue files for scanning

       *   clamd   /   libclamav   bindings  --  communicate  with  anti-virus


       This program uses only one command line argument -  configuration  file


       fusermount(1), clamd(8), clamdscan(1), clamscan(1), freshclam(1).
       ClamFS Project Page:


       ClamFS  and  this  manual  page  was  written  by  Krzysztof  Burghardt
       <> and may be freely distributed under the  terms
       of the GNU General Public License.

                                  09 Feb 2007