sane-project-website/old-archive/1998-10/0167.html

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<!-- name="Ray Curtis" -->
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<!-- subject="Re: how to make net scanner appear in xscanimage?" -->
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<title>sane-devel: Re: how to make net scanner appear in xscanimage?</title>
<h1>Re: how to make net scanner appear in xscanimage?</h1>
<b>Ray Curtis</b> (<a href="mailto:ray@ray.clark.net"><i>ray@ray.clark.net</i></a>)<br>
<i>Thu, 15 Oct 1998 14:12:35 -0400 (EDT)</i>
<p>
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<i>&gt;&gt;&gt;&gt;&gt; "o" == olberg  &lt;<a href="mailto:olberg@oso.chalmers.se">olberg@oso.chalmers.se</a>&gt; writes:</i><br>
<p>
o&gt; Hej again,<br>
o&gt; So it seems I am not alone with my problem and I might even have gotten<br>
o&gt; further than some other people. Here is what I did.<br>
<p>
o&gt; In the following I'll call the machine having the scanner connected to it<br>
o&gt; for server, the machine from which I want to access the scanner via the<br>
o&gt; net for client.<br>
<p>
o&gt; (0) I assume in the following that the scanner (an HP SJIICX in my case)<br>
o&gt; is working on the server, of course.<br>
<p>
o&gt; (1) I added <br>
<p>
o&gt; sane stream tcp nowait root /usr/sbin/tcpd saned<br>
<p>
My line from a RedHat-5.1 system reads:<br>
<p>
sane  stream tcp nowait root /usr/sbin/in.identd saned<br>
<p>
indentd is a daemon that listens for connections on sockets.<br>
This is the redhat method.<br>
<p>
o&gt; to /etc/inetd.conf on the server. Note that I have root here, which the<br>
o&gt; documentation advises against, I'll probably change that later. I am using<br>
o&gt; /usr/sbin/tcpd so I can control the access for individual machines via<br>
o&gt; /etc/hosts.allow (see: man 5 hosts_access)<br>
<p>
o&gt; Note also that I call the service 'sane' and not 'saned'. It was confirmed<br>
o&gt; in the meantime on this list that this is the right service name. The<br>
o&gt; documentation isn't completely clear about this.<br>
<p>
o&gt; (2) I added<br>
<p>
o&gt; sane            6566/tcp        # scanner network access<br>
<p>
Same here.<br>
<p>
o&gt; to /etc/services on the server<br>
<p>
o&gt; (3) I did <br>
<p>
o&gt; kill -HUP 120<br>
<p>
o&gt; where 120 turns out to be the process id of the 'inetd' process. (Do a <br>
o&gt; 'ps aux | grep inetd' to find that process id.) This will restart 'inetd'<br>
o&gt; and force it to note the change in /etc/inetd.conf.<br>
<p>
o&gt; (4) I added<br>
<p>
o&gt; sane            6566/tcp        # scanner network access<br>
<p>
o&gt; this time to /etc/services on the client. No need to restart inetd or to<br>
o&gt; modify /etc/inetd.conf.<br>
<p>
o&gt; (5) I uncommented the 'net' device in .../sane.d/dll.conf:<br>
<p>
I even commented out everything except the 'net' entry.<br>
<p>
o&gt; # enable the next line if you want to allow access through the network:<br>
o&gt; net<br>
o&gt; ...<br>
<p>
o&gt; on actually both the client and the server, I do believe it's only<br>
o&gt; necessary on the client.<br>
<p>
o&gt; (6) I checked that I can reach the 6566 port by trying<br>
<p>
o&gt; telnet server 6566<br>
<p>
o&gt; on the client. You should just get a few lines of text saying<br>
<p>
o&gt; Trying ....<br>
o&gt; Connected to ...<br>
o&gt; ...<br>
<p>
Yes this works fine on both my machines also.<br>
<p>
<p>
o&gt; hit &lt;CTRL-C&gt; to get your prompt back. You should not see 'permission<br>
o&gt; denied' or anything else indicating that you couldn't connect. Because I<br>
o&gt; use tcpd I get an entry in the /var/log/messages file on my server saying<br>
<p>
o&gt; Oct 15 08:50:48 server saned[10291]: connect from olberg@client<br>
<p>
o&gt; (7) Now for the real test. On the client I did<br>
<p>
o&gt; xscanimage net:server:hp<br>
<p>
With the server word changed to my server with this I get a popup with the line:<br>
<p>
failed to open device: Error during device I/O<br>
<p>
I also see an entry in the server log file:<br>
<p>
Oct 15 14:07:13 ray saned[7609]: access by <a href="mailto:saned-user@picard.ray.clark.net">saned-user@picard.ray.clark.net</a> rejected<br>
<p>
Now this works fine from the server, just not the client machine.<br>
<p>
Any ideas or suggestions, much appreciated.<br>
<p>
Thanks,<br>
<p>
<pre>
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<li> <b>Next message:</b> <a href="0168.html">leila belhadjali: "Re: Umax 1220s scans 'dark'."</a>
<li> <b>Previous message:</b> <a href="0166.html">Oliver Rauch: "Re: Umax 1220s scans 'dark'."</a>
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