1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
4 <title>The Standard Client</title>
5 <title>Connecting to other Clusters</title>
6 <meta name="Keywords" content="DX Cluster, DXSpider, Spider, Packet Cluster, DXCluster, Pavillion Software, AK1A, AX25, AX.25, WWV, Packet Radio, Amateur Radio, Propagation, DX, DXing, G1TLH, GB7TLH, Dirk Koopman, Mailing list, Linux, RedHat, PERL">
7 <meta name="Description" content="Software and systems for realtime digital communications between amateur radio stations for the provision of information on propagation conditions and stations operating">
8 <meta name="Author" content="Dirk Koopman G1TLH">
11 <body TEXT="#000000" LINK="#0000ff" VLINK="#800080" BGCOLOR="#FFFFFF">
12 <FONT COLOR="#606060">
14 <h2>The Standard Client</h2>
19 <address><a href="mailto:djk@tobit.co.uk">Dirk Koopman G1TLH</a></address>
21 <!-- Created: Sun Dec 13 20:25:14 GMT 1998 -->
23 Last modified: Mon Dec 21 12:26:18 GMT 1998
28 The standard client program is written in perl and lives in <tt>/spider/perl/client.pl</tt>.
29 It performs the interface function
30 between the cluster daemon (<tt>/spider/perl/cluster.pl</tt>) and
31 AX25 or Telnet connections, both incoming and outgoing.
35 The client itself is a rather rudimentary program which really only deals with
36 things like line end conventions and noticing when a connection goes away. It is
37 envisaged that at some time in the nearish future this program will be written in
38 C and thus become considerably smaller. But, for the moment and whilst this area
39 is under some development, it will remain in perl for ease of change.
41 <P>The client can take up two arguments: a "callsign" and a connection type.
43 <p>The "callsign" can have the following values:-
45 <p><li>A real callsign (!).
47 <P>For incoming connections it is important to make sure that
48 the callsign passed <b>DOES NOT</b> have an SSID (use the %u
49 or %U in <tt>ax25d.conf</tt>). The DXSpider system largely
50 ignores what it regards as 'duplicate' callsigns (and that
51 includes those with SSIDs) except in certain <a
52 href="#special">special</a> cases.
54 <P><li>The name of a <a href="connect.html">connect</a> script.
56 <p><li><b>login</b> This will cause a unix like <tt>login:</tt> and
57 <tt>password:</tt> phase to be run. With version 1.13 the password isn't
58 checked unless there is a password recorded in the user file - but you have
59 no means of recording a password! (unless you have created a local <tt>set/password</tt>
60 command - please donate a copy it you have)
62 <p>Also in 1.13 only existing users can enter via this means. This will probably
63 change, but please discuss this in the <a href="../lists/dxspider-support/index.html">support</a>
68 <p>The connection type can be:-
70 <p><li><b>ax25</b> This tells the client to use ax25 line conventions.
72 <p><li><b>telnet</b> This tells the client to use normal unix line conventions.
74 <p><li><b>connect</b> Start an outgoing <a href="connect.html">connect</a> script.
75 Use the line conventions in that script.
78 <p>The connection type can be missing in which case the default is unix line conventions.
80 <p>If both the callsign and the connection are missing then it is
81 assumed that the client is the sysop and uses the callsign set in
82 your local copy of <a href="install.html#dxvar">DXVars.pm</a>.
84 <h4>Considerations</h4>
86 <a name="special"></a>As mentioned earlier, SSIDs are generally stripped from
87 callsigns except in two cases:
89 <p><li>For Cluster node callsigns. Although here in the UK we are issued with
90 special callsigns to run cluster nodes and BBSs, this is not universal. Therefore
91 by marking a callsign as a node you disable SSID checking. You will have to treat
92 incoming cluster callsigns specially in <tt>ax25d.conf</tt> to use this feature (i.e
93 you will have to set up a line specially for that callsign with a %s or %S for the
94 callsign substitution [better just put the callsign you want!]).
96 <p><li>The sysop callsign set up in your local copy of
97 <a href="install.html#dxvar">DXVars.pm</a>. You must call <tt>client.pl</tt> with
98 no parameters for this to work.
103 The client only uses files when in the <b>login</b> phase. It
104 prints the <tt>/spider/data/issue</tt> file, if it is present, to
105 the user before issuing the <tt>login:</tt> prompt. After a callsign
106 and password is entered it uses
107 the standard cluster user file to check them.
110 <!-- Standard Footer!! -->
113 <FONT COLOR="#606060"><hr></font>
114 <font color="#FF0000" size=-2>
115 Copyright © 1998 by Dirk Koopman G1TLH. All Rights Reserved<br>
117 <font color="#000000" size=-2>$Id$</font>