kopia lustrzana https://gitlab.com/sane-project/backends
35 wiersze
1.7 KiB
Plaintext
35 wiersze
1.7 KiB
Plaintext
Last update: 2003-02-09
|
|
|
|
- Avoiding damage on flatbed scanners
|
|
|
|
Most flatbed scanners have no protection against exceeding the physical scan
|
|
area height. That is, if a scan is attempted with a height that exceeds the
|
|
height of the scan surface, the scanner begins making loud noises and the
|
|
scan mechanism may be damaged. Thus, if you hear such a noise, IMMEDIATELY
|
|
turn off the scanner.
|
|
|
|
Normally, the backend will ensure that the maximum scan height is not
|
|
exceeded. However, if your scanner model has not been tested yet this
|
|
safety-guard may not work. Please report errors like this to the author of
|
|
the backend or the sane-devel mailing list.
|
|
|
|
- pnm backend disabled by default
|
|
|
|
If the pnm backend is installed and saned is used to allow users on remote
|
|
computers to scan on the local machine, pnm files can be read by the remote
|
|
user. This is limited to the files saned can access (usually it's running as
|
|
user "sane"). All pnm files can be read if saned runs as root which isn't
|
|
recommended anyway. The pnm backend is disabled by default. If you want to
|
|
use it, enable it with configure (see configure --help for details). Be sure
|
|
that only trusted users can access the pnm backend over saned. As the pnm
|
|
backend is ususally used for testing, the "test" backend should be used
|
|
instead.
|
|
|
|
- Security problems with saned (SANE network scanning daemon)
|
|
|
|
saned is not intended to be exposed to the internet or other non-trusted
|
|
networks. Make sure that access is limited by tcpwrappers and/or a firewall
|
|
setup. Don't depend only on saned's own authentification. Don't run saned
|
|
as root if it's not necessary. And do not install saned as setuid root.
|
|
Read man saned(8) for details.
|