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<sect1 id="networking-with-windows">
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<sect1info>
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<authorgroup>
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<author>
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<firstname>Gardner</firstname>
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<surname>Bell</surname>
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</author>
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</authorgroup>
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</sect1info>
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<title>Networking With Windows</title>
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<para> This section is borrowed and modified from Alexander Neundorf's
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README file on LISa.</para>
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<para>&tde; features two powerful servers called the Lan Information
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Server (<application>LISa</application>) and Restricted Lan
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Information Server (<application>resLISa</application>) which are used
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to identify CIFS and other servers on your local network providing a
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function similar to <quote>Network Neighbourhood</quote> in
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&Microsoft; &Windows;.</para>
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<sect2 id="How-It-Works">
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<title>How It Works</title>
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<para>&lisa; only depends on the TCP/IP stack so samba configuration is not
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required to make it work but the <ulink
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url="http://www.samba.org">samba</ulink> package is a dependency. To find
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hosts on your local network you set a range of IP-Addresses in your
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configuration file that &lisa; will check. When you start the &lisa; daemon
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it will send a <ulink url="http://www.ietf.org/rfc/rfc792.txt">ICMP</ulink>,
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echo request message to all the IP addresses given in the configuration file
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and await a response.</para>
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<note><para>The &lisa; daemon requires root privileges to open the socket,
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but once the socket has been established root privileges are immediately
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dropped.</para></note>
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<para>You can also execute &lisa; using <command>nmblookup
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<option>"*"</option></command>.<note><para>If you do not have the
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<command>nmblookup</command> program it can be found at <ulink
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url="http://www.samba.org">http://www.samba.org</ulink> or through packages
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provided by your distribution</para></note>. The samba command
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<command>nmblookup <option>"*"</option></command> will send a broadcast
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message to the attached network and any host that is running the
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smb-services will send a reply stating that it is accepting
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connections.</para>
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</sect2>
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<sect2 id="resLISa">
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<title><application>resLISa</application></title>
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<para>If your company network has very strict guidelines governing what
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ports can and cannot be opened you will have to use &reslisa; to communicate
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with other hosts on your network. Because &reslisa; cannot ping entire
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networks or address ranges you will have to add each host by name to your
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confiuration file. Currently you are able to add up to 64 hosts, and these
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addresses are pingable.</para>
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<note><para>&reslisa; will only provide the information over a &UNIX; domain
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socket, &ie; not over the network. The name of the socket is
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<filename>/tmp/resLISa-<replaceable>YourLoginName</replaceable></filename>,
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so &reslisa; can be safely run on the same machine by more than one
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user.</para></note>
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</sect2>
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<sect2 id="configuration">
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<title>Configuration</title>
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<para>At startup &lisa; first parses the configuration file in the users
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home directory under <filename>$<envar>HOME</envar>/.lisarc</filename>. If
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this file does not exist &lisa; will then look for a system wide
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confiuration located at <filename>/etc/lisarc</filename>. Now for a sample
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example configuration file:</para>
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<programlisting>
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PingAddresses = 192.168.100.0/255.255.255.0;192.168.100.10-192.168.199.19;192.168.200.1;
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PingNames = my_host1;my_host2 #Hosts by name (required for <application>resLISa</application>)
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AllowedAddresses = 192.168.0.0/255.255.0.0
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BroadcastNetwork = 192.168.100.0/255.255.255.0
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SearchUsingNmblookup = 1 #also try nmblookup
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FirstWait = 30 #30 one-hundredth's of a second
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SecondWait = -1 #Only try once
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#SecondWait = 60 #Try twice and wait 0.6 seconds
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UpdatePeriod = 300 #Update every 300 sec's
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DeliverUnnamedHosts = 0 #Don't publish unnamed hosts
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MaxPingsAtOnce = 256 #Send up to 256 ICMP echo requests at once
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</programlisting>
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<para>&lisa; can also be configured graphically in the
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<menuchoice><guimenuitem>&kcontrolcenter;</guimenuitem><guisubmenu>Internet
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& Network</guisubmenu><guimenuitem>Local Network Browsing</guimenuitem>
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</menuchoice> item in the &kmenu;. However, to use this option &lisa; must
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be started with the <option>-K</option> command line switch.</para>
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<!--TODO add a section explaining graphical configuration? -->
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<!-- Add links to "further reading" here -->
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<itemizedlist>
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<title>Related Information</title>
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<listitem><para>For a full list of command line switches and further
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examples see the entire &lisa; manual by entering
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<userinput>help:/lisa</userinput> in &konqueror;.</para>
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</listitem>
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</itemizedlist>
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</sect2>
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</sect1>
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