====== Using a Scanner in a Network ======
This Howto describes how one can use a scanner which is connected to another Slackware-computer over the network.
===== Necessary Software =====
All packages which are necessary are available in a stock Slackware-installation. This are **sane** and **xsane** for the scanner. Also the internet super-server daemon **inetd** is used (on the scannerserver) to listen to the network for scanner-job.
===== Permissions =====
I have an older Multifunction-device HP-PSC-1410 which is connected via USB to my server. In order to use the device for scanning (locally or over the network) one has to be member of the **scanner** as well as the **lp**-group. **Note that any user who is added with Slackware's adduser command, is member of this groups by default.**
===== Configuration of the server =====
One has to edit the ''/etc/sane.d/saned.conf'' file. Since the inetd is used to listen to the network the only part one has to configure is the "Access-List". It lists the IP-adresses of the computers which are allowed to access the scanner. It is possible to list single IP-Adresses or the adress of the whole subnet, here I use
192.168.98.0/24
In the ''/etc/inetd.conf'' file one needs a line
sane-port stream tcp nowait root.root /usr/sbin/saned saned
Be sure to have the following line in your /etc/services file
sane-port 6566/tcp
Afterwards you will have to restart the inetd-daemon
/etc/rc.d/rc.inetd restart
===== Testing the network-settings for the server =====
With the nmap command one can scan the ports and find out if the sane-port is open, sane uses port 6566
Samsung ~ # nmap -p 6566 192.168.178.10
Starting Nmap 5.21 ( http://nmap.org ) at 2010-11-29 19:54 CET
Nmap scan report for srv-zuhause.home.local (192.168.98.10)
Host is up (0.0031s latency).
PORT STATE SERVICE
6566/tcp open unknown
MAC Address: xx:xx:xx:xx:xx:xx (xx Computer)
Nmap done: 1 IP address (1 host up) scanned in 0.23 seconds
The command can be executed on the server as well as any client, the ip-adress is the one of the server!
===== Configuration of the client(s) =====
On the client one has to edit the ''/etc/sane.d/net.conf'' file and add a line with the IP-adress of the server.
#/etc/sane.d/net.conf
192.168.98.10
Theoretically it is possible to insert the DNS-name of the server (instead of it's IP-adress) in the net.conf file, but it didn't work here.
Also be sure that in the file ''/etc/sane.d/dll.conf'' is a line with the word "net"
#/etc/sane.d/dll.conf
# enable the next line if you want to allow access through the network:
net
...
===== Testing the client-configuration =====
With the command scanimage -L we can check if the scanner is recognized by the system
markus@Samsung ~ $ scanimage -L
device `net:192.168.98.10:hpaio:/usb/PSC_1400_series?serial=CN619D724804DZ' is a Hewlett-Packard PSC_1400_series all-in-one.
Now if you open xsane on the client you should be able to use the scanner.
====== Sources ======
* Originally written by [[wiki:user:markush|Markus Hutmacher]]
{{tag>howtos network scanner sane inetd multifunction device author_markush}}