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RedHat 9 (Linux i386) - man page for sane-net (redhat section 5)

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sane-net(5)									      sane-net(5)

NAME
       sane-net - SANE network backend

DESCRIPTION
       The  sane-net  library  implements  a SANE (Scanner Access Now Easy) backend that provides
       access to image acquisition devices through a network connection.  This makes it  possible
       to  control  devices  attached  to  a remote host and also provides a means to grant users
       access to protected resources.

DEVICE NAMES
       This backend expects device names of the form:

	      host:device

       Where host is the name of the (remote-) host and device is the name of the device on  this
       host  that should be addressed.	If the device name does not contain a colon (:), then the
       entire string is treated as the device string for the default host.  The default  host  is
       the host listed last in the configuration file (see below).

CONFIGURATION
       The  contents  of the net.conf.	file is a list of host names that should be contacted for
       scan requests.  Empty lines and lines starting with a hash mark (#) are ignored.  A sample
       configuration file is shown below:

	      scan-server.somedomain.firm
	      # this is a comment
	      localhost

       The  above  list  of  host  names  can  be extended at run-time using environment variable
       SANE_NET_HOSTS.	This environment variable is a colon-separated	list  of  hostnames  that
       should  be  contacted  in  addition to the hosts mentioned in the configuration file.  For
       example, a user could set the environment variable to the string:

	      new.scanner.com:scanner.univ.edu

       To request that hosts new.scanner.com and scanner.univ.edu are contacted  in  addition  to
       the hosts listed above.

       For  this backend to function properly, it is also necessary to define the sane service in
       /etc/services.  At present, the sane service should be defined using a line of the follow-
       ing form:

	      sane 6566/tcp # SANE network scanner daemon

FILES
       /etc/sane.d/net.conf
	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

       /usr/lib/sane/libsane-net.a
	      The static library implementing this backend.

       /usr/lib/sane/libsane-net.so
	      The  shared  library  implementing  this	backend  (present on systems that support
	      dynamic loading).

ENVIRONMENT
       SANE_CONFIG_DIR
	      This environment variable specifies the list of directories that	may  contain  the
	      configuration  file.   Under  UNIX, the directories are separated by a colon (`:'),
	      under OS/2, they are separated by a semi-colon (`;').  If this variable is not set,
	      the  configuration  file is searched in two default directories: first, the current
	      working directory (".") and then in /etc/sane.d.	If the value of  the  environment
	      variable	ends with the directory separator character, then the default directories
	      are searched after the explicitly  specified  directories.   For	example,  setting
	      SANE_CONFIG_DIR  to  "/tmp/config:"  would result in directories "tmp/config", ".",
	      and "/etc/sane.d" being searched (in this order).

       SANE_NET_HOSTS
	      A colon-separated list of host names to be contacted by this backend.

       SANE_DEBUG_NET
	      If the library was compiled with debug support enabled, this  environment  variable
	      controls the debug level for this backend.  E.g., a value of 128 requests all debug
	      output to be printed.  Smaller levels reduce verbosity.

BUGS
       If saned has timed out, the net backend may loop with authorization requests.

SEE ALSO
       sane(7), saned(1), sane-dll(5), scanimage(1)

       http://www.penguin-breeder.org/?page=sane-net

AUTHOR
       David Mosberger and Andreas Beck

					    8 Oct 2002				      sane-net(5)
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