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<div dir="auto"><span style="font-family:Arial;font-size: 16px">Kin,</span><span style="font-size: 16px"><br /></span><span style="font-size: 16px"><br /></span><span style="font-family:Arial;font-size: medium">The trick surely is to try and get these third party software developers on board? I have no idea what effort has been made to do this but my experiences with the developer of HC have been so positive and we’re good friends now. If these developers don’t even know that they’re potentially causing issues then they won’t be doing anything to resolve it. Are there even any best practises for software clients connecting to dxclusters that they can work with or is everything just done by guesswork?</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">If there are no best practises or guidelines for client software writers, it’s hardly surprising that they all do their own thing.</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">Regarding N9SIN-3, do we even know that N9SIN is operating it? As I said in the other thread, from the qrz page for that callsign, it seems unlikely and if it’s not legit, then it should be blocked.</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">I know I’m barely touching on the contents of your email, but those are the first things that come to mind. </span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">73 Keith</span></div>
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<div name="messageReplySection">On 26 Jan 2025 at 13:05 +0000, Kin via Dxspider-support <dxspider-support@tobit.co.uk>, wrote:<br />
<blockquote type="cite" style="border-left-color: grey; border-left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left: 10px;">
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<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Hi,</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>I <span class="SpellE">believe</span> <span class="SpellE">there</span> are <span class="SpellE">third-party</span> <span class="SpellE">developments</span> <span class="SpellE">that</span> <span class="SpellE">have</span> <span class="SpellE">chosen</span> <span class="SpellE">the</span> <span class="SpellE">easiest</span> <span class="SpellE">path</span> <span class="SpellE">or</span> <span class="SpellE">have</span> <span class="SpellE">not</span> <span class="SpellE">considered</span> <span class="SpellE">the</span> <span class="SpellE">impact</span> <span class="SpellE">of</span> <span class="SpellE">their</span> software <span class="SpellE">on</span> <span class="SpellE">clusters</span>.</span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Sending</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">all</span> <span class="SpellE">configuration</span> <span class="SpellE">commands</span> in <span class="SpellE">every</span> <span class="SpellE">session</span> <span class="SpellE">is</span> <span class="SpellE">very</span> <span class="SpellE">straightforward</span> and poses no <span class="SpellE">burden</span> <span class="SpellE">on</span> <span class="SpellE">the</span> <span class="SpellE">sender</span> <span class="SpellE">when</span> <span class="SpellE">one</span> <span class="SpellE">thinks</span> <span class="SpellE">of</span> a single <span class="SpellE">client</span>. <span class="SpellE">It</span> <span class="SpellE">would</span> be <span class="SpellE">advisable</span> <span class="SpellE">for</span> <span class="SpellE">them</span> <span class="SpellE">to</span> <span class="SpellE">consult</span> <span class="SpellE">or</span> <span class="SpellE">ask</span> <span class="SpellE">about</span> <span class="SpellE">the</span> <span class="SpellE">best</span> <span class="SpellE">approach</span>. I <span class="SpellE">believe</span> <span class="SpellE">the</span> <span class="SpellE">answer</span> <span class="SpellE">is</span> quite simple: <span class="SpellE">issuing</span> a <span class="SpellE">query</span> <span class="SpellE">about</span> <span class="SpellE">the</span> <span class="SpellE">state</span> <span class="SpellE">of</span> <span class="SpellE">filters</span> (<span class="SpellE">for</span> <span class="SpellE">example</span>) <span class="SpellE">would</span> <span class="SpellE">avoid</span> <span class="SpellE">repetitions</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Another</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">possibility</span> <span class="SpellE">would</span> be <span class="SpellE">to</span> <span class="SpellE">create</span> a new <span class="SpellE">command</span> in Spider <span class="SpellE">that</span> <span class="SpellE">provides</span> a <span class="SpellE">summary</span> <span class="SpellE">of</span> <span class="SpellE">significant</span> data <span class="SpellE">that</span> <span class="SpellE">other</span> <span class="SpellE">applications</span> <span class="SpellE">might</span> <span class="SpellE">need</span>. <span class="SpellE">For</span> <span class="SpellE">instance</span>: QRA, QTH, RBN, <span class="SpellE">filters</span>, etc. <span class="SpellE">This</span> <span class="SpellE">would</span> <span class="SpellE">simplify</span> <span class="SpellE">the</span> <span class="SpellE">need</span> <span class="SpellE">to</span> <span class="SpellE">repeatedly</span> <span class="SpellE">send</span> <span class="SpellE">the</span> <span class="SpellE">same</span> <span class="SpellE">commands</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Another</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">recurring</span> <span class="SpellE">issue</span> <span class="SpellE">is</span> <span class="SpellE">when</span> a <span class="SpellE">user</span> <span class="SpellE">is</span> <span class="SpellE">connected</span> <span class="SpellE">to</span> <span class="SpellE">three</span> <span class="SpellE">nodes</span> and <span class="SpellE">attempts</span> <span class="SpellE">to</span> <span class="SpellE">connect</span> <span class="SpellE">to</span> a <span class="SpellE">fourth</span> <span class="SpellE">node</span>. <span class="SpellE">Since</span> <span class="SpellE">their</span> software—and <span class="SpellE">the</span> <span class="SpellE">user</span> <span class="SpellE">themselves</span>—<span class="SpellE">does</span> <span class="SpellE">not</span> <span class="SpellE">register</span> <span class="SpellE">the</span> <span class="SpellE">information</span> <span class="SpellE">that</span> <span class="SpellE">they</span> <span class="SpellE">already</span> <span class="SpellE">have</span> <span class="SpellE">three</span> <span class="SpellE">connections</span>, a <span class="SpellE">loop</span> <span class="SpellE">begins</span> <span class="SpellE">with</span> <span class="SpellE">hundreds</span> <span class="SpellE">of</span> <span class="SpellE">unsuccessful</span> <span class="SpellE">connection</span> <span class="SpellE">attempts</span>, <span class="SpellE">sometimes</span> at a <span class="SpellE">rate</span> <span class="SpellE">of</span> more <span class="SpellE">than</span> <span class="SpellE">one</span> <span class="SpellE">attempt</span> per <span class="SpellE">second</span>. <span class="SpellE">This</span> <span class="SpellE">should</span> be <span class="SpellE">addressed</span> and <span class="SpellE">prevented</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Regarding</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">limiting</span> <span class="SpellE">the</span> <span class="SpellE">number</span> <span class="SpellE">of</span> <span class="SpellE">commands</span> per <span class="SpellE">unit</span> <span class="SpellE">of</span> time <span class="SpellE">with</span> a <span class="SpellE">penalty</span> <span class="SpellE">mechanism</span> <span class="SpellE">like</span> <span class="SpellE">the</span> <span class="SpellE">one</span> <span class="SpellE">you</span> <span class="SpellE">proposed</span>, I <span class="SpellE">think</span> <span class="SpellE">it’s</span> <span class="SpellE">an</span> <span class="SpellE">excellent</span> idea. <span class="SpellE">Even</span> <span class="SpellE">if</span> <span class="SpellE">the</span> <span class="SpellE">received</span> <span class="SpellE">command</span> <span class="SpellE">is</span> <span class="SpellE">invalid</span>, <span class="SpellE">it’s</span> <span class="SpellE">common</span> <span class="SpellE">to</span> <span class="SpellE">see</span> <span class="SpellE">attempts</span> <span class="SpellE">to</span> <span class="SpellE">access</span> <span class="SpellE">the</span> <span class="SpellE">system</span> <span class="SpellE">using</span> <span class="SpellE">all</span> <span class="SpellE">sorts</span> <span class="SpellE">of</span> <span class="SpellE">commands</span> more <span class="SpellE">suitable</span> <span class="SpellE">for</span> <span class="SpellE">an</span> OS.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>The 10-second <span class="SpellE">delay</span> <span class="SpellE">is</span> more <span class="SpellE">than</span> <span class="SpellE">sufficient</span> <span class="SpellE">for</span> <span class="SpellE">this</span> <span class="SpellE">semi-blocking</span> <span class="SpellE">mechanism</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>For</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">those</span> <span class="SpellE">who</span> <span class="SpellE">like</span> <span class="SpellE">having</span> <span class="SpellE">their</span> <span class="SpellE">skimmer</span> <span class="SpellE">connected</span> <span class="SpellE">to</span> <span class="SpellE">the</span> <span class="SpellE">feed</span> <span class="SpellE">of</span> spots, <span class="SpellE">whether</span> <span class="SpellE">due</span> <span class="SpellE">to</span> <span class="SpellE">ignorance</span>, <span class="SpellE">testing</span>, <span class="SpellE">or</span> <span class="SpellE">simply</span> <span class="SpellE">boredom</span>, <span class="SpellE">this</span> <span class="SpellE">should</span> be <span class="SpellE">restricted</span> <span class="SpellE">since</span> <span class="SpellE">the</span> RBN <span class="SpellE">network</span> <span class="SpellE">exists</span> <span class="SpellE">precisely</span> <span class="SpellE">for</span> <span class="SpellE">this</span> <span class="SpellE">purpose</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>For</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>human spots, <span class="SpellE">the</span> <span class="SpellE">worst</span>-case <span class="SpellE">scenario</span> <span class="SpellE">might</span> <span class="SpellE">involve</span> <span class="SpellE">sending</span> <span class="SpellE">four</span> spots in <span class="SpellE">one</span> minute (CW), <span class="SpellE">but</span> I <span class="SpellE">don’t</span> <span class="SpellE">think</span> <span class="SpellE">many</span> <span class="SpellE">operators</span> can <span class="SpellE">sustain</span> <span class="SpellE">such</span> a pace. <span class="SpellE">Only</span> in FT4 <span class="SpellE">could</span> a similar <span class="SpellE">rate</span> be <span class="SpellE">maintained</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Regarding</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">Andrea’s</span> <span class="SpellE">comment</span> <span class="SpellE">about</span> <span class="SpellE">using</span> <span class="SpellE">the</span> <span class="SpellE">subterfuge</span> <span class="SpellE">of</span> <span class="SpellE">including</span> HH:MM in <span class="SpellE">the</span> <span class="SpellE">comments</span> <span class="SpellE">field</span> <span class="SpellE">to</span> evade <span class="SpellE">duplicate</span> <span class="SpellE">detection</span> <span class="SpellE">by</span> a <span class="SpellE">sysop</span>, I <span class="SpellE">find</span> <span class="SpellE">this</span> <span class="SpellE">behaviour</span> <span class="SpellE">inappropriate</span> <span class="SpellE">for</span> <span class="SpellE">someone</span> <span class="SpellE">using</span> a <span class="SpellE">network</span> <span class="SpellE">that</span> <span class="SpellE">does</span> <span class="SpellE">not</span> <span class="SpellE">depend</span> <span class="SpellE">solely</span> <span class="SpellE">on</span> <span class="SpellE">them</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>A <span class="SpellE">few</span> <span class="SpellE">days</span> <span class="SpellE">ago</span>, I <span class="SpellE">asked</span> <span class="SpellE">who</span> <span class="SpellE">could</span> <span class="SpellE">provide</span> me <span class="SpellE">with</span> <span class="SpellE">information</span> <span class="SpellE">about</span> <span class="SpellE">the</span> <span class="SpellE">node</span> N9SIN-3. <span class="SpellE">This</span> <span class="SpellE">node</span> <span class="SpellE">does</span> <span class="SpellE">not</span> <span class="SpellE">appear</span> <span class="SpellE">to</span> be <span class="SpellE">directly</span> <span class="SpellE">connected</span> <span class="SpellE">to</span> <span class="SpellE">any</span> Spider, <span class="SpellE">which</span> <span class="SpellE">means</span> I <span class="SpellE">have</span> <span class="SpellE">not</span> <span class="SpellE">yet</span> <span class="SpellE">been</span> <span class="SpellE">able</span> <span class="SpellE">to</span> determine <span class="SpellE">who</span> <span class="SpellE">they</span> are <span class="SpellE">or</span> <span class="SpellE">who</span> <span class="SpellE">their</span> <span class="SpellE">partners</span> are. <span class="SpellE">Personally</span>, I <span class="SpellE">believe</span> <span class="SpellE">they</span> <span class="SpellE">should</span> be <span class="SpellE">blocked</span> <span class="SpellE">for</span> <span class="SpellE">their</span> <span class="SpellE">behaviour</span>. <span class="SpellE">If</span> <span class="SpellE">it</span> <span class="SpellE">is</span> <span class="SpellE">not</span> <span class="SpellE">possible</span> <span class="SpellE">to</span> block <span class="SpellE">them</span> <span class="SpellE">directly</span>, and <span class="SpellE">their</span> <span class="SpellE">partners</span> <span class="SpellE">fail</span> <span class="SpellE">to</span> <span class="SpellE">act</span>, I <span class="SpellE">would</span> <span class="SpellE">also</span> block <span class="SpellE">those</span> <span class="SpellE">partners</span>. The <span class="SpellE">end</span> <span class="SpellE">does</span> <span class="SpellE">not</span> <span class="SpellE">justify</span> <span class="SpellE">the</span> <span class="SpellE">means</span>. <span class="SpellE">However</span>, <span class="SpellE">if</span> <span class="SpellE">it</span> has <span class="SpellE">been</span> <span class="SpellE">an</span> error, <span class="SpellE">it</span> <span class="SpellE">would</span> <span class="SpellE">suffice</span> <span class="SpellE">for</span> <span class="SpellE">them</span> <span class="SpellE">to</span> <span class="SpellE">resolve</span> <span class="SpellE">it</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>I <span class="SpellE">would</span> <span class="SpellE">also</span> <span class="SpellE">like</span> <span class="SpellE">to</span> <span class="SpellE">highlight</span> <span class="SpellE">the</span> <span class="SpellE">large</span> <span class="SpellE">number</span> <span class="SpellE">of</span> <span class="SpellE">nodes</span> <span class="SpellE">that</span> <span class="SpellE">remain</span> <span class="SpellE">poorly</span> <span class="SpellE">configured</span> and do <span class="SpellE">nothing</span> <span class="SpellE">to</span> reduce <span class="SpellE">the</span> <span class="SpellE">generated</span> <span class="SpellE">noise</span>.</span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Perhaps</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">it</span> <span class="SpellE">would</span> be <span class="SpellE">necessary</span> <span class="SpellE">to</span> introduce a <span class="SpellE">code</span> <span class="SpellE">change</span> in new <span class="SpellE">builds</span> <span class="SpellE">to</span> <span class="SpellE">prevent</span> <span class="SpellE">the</span> <span class="SpellE">sending</span> <span class="SpellE">of</span> PC92D as a <span class="SpellE">result</span> <span class="SpellE">of</span> a <span class="SpellE">failed</span> <span class="SpellE">connection</span> <span class="SpellE">attempt</span>. <span class="SpellE">If</span> <span class="SpellE">the</span> TCP/IP <span class="SpellE">session</span> <span class="SpellE">is</span> <span class="SpellE">not</span> <span class="SpellE">established</span>, <span class="SpellE">there</span> <span class="SpellE">should</span> be no <span class="SpellE">application-level</span> <span class="SpellE">notification</span>. The <span class="SpellE">same</span> <span class="SpellE">applies</span> <span class="SpellE">to</span> cases <span class="SpellE">of</span> PC92A <span class="SpellE">or</span> C.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>DXVars.pm <span class="SpellE">could</span> be <span class="SpellE">modified</span> <span class="SpellE">to</span> <span class="SpellE">include</span> a table <span class="SpellE">of</span> <span class="SpellE">partner</span> <span class="SpellE">nodes</span>, as <span class="SpellE">well</span> as <span class="SpellE">the</span> <span class="SpellE">type</span> <span class="SpellE">of</span> <span class="SpellE">node</span>. <span class="SpellE">This</span> <span class="SpellE">may</span> <span class="SpellE">seem</span> <span class="SpellE">unnecessary</span>, <span class="SpellE">but</span> <span class="SpellE">it</span> <span class="SpellE">would</span> <span class="SpellE">allow</span> <span class="SpellE">for</span> a <span class="SpellE">centralised</span> <span class="SpellE">location</span> <span class="SpellE">to</span> store <span class="SpellE">this</span> data, <span class="SpellE">avoiding</span> <span class="SpellE">the</span> <span class="SpellE">current</span> <span class="SpellE">situation</span> <span class="SpellE">where</span> <span class="SpellE">some</span> <span class="SpellE">sysops</span> <span class="SpellE">add</span> <span class="SpellE">other</span> <span class="SpellE">nodes</span> as <span class="SpellE">partners</span> <span class="SpellE">but</span> do <span class="SpellE">not</span> <span class="SpellE">include</span> <span class="SpellE">them</span> in <span class="SpellE">their</span> <span class="SpellE">crontab</span> <span class="SpellE">or</span> <span class="SpellE">maintain</span> a <span class="SpellE">record</span> <span class="SpellE">of</span> <span class="SpellE">these</span> <span class="SpellE">partners</span>. As a <span class="SpellE">result</span>, no <span class="SpellE">connection</span> file <span class="SpellE">is</span> <span class="SpellE">created</span>, and <span class="SpellE">there</span> <span class="SpellE">is</span> no <span class="SpellE">way</span> <span class="SpellE">to</span> determine <span class="SpellE">who</span> <span class="SpellE">is</span> <span class="SpellE">authorised</span> <span class="SpellE">to</span> <span class="SpellE">access</span> a <span class="SpellE">node</span>.</span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>By</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">including</span> <span class="SpellE">partners</span> in DXVars.pm, <span class="SpellE">it</span> <span class="SpellE">would</span> be <span class="SpellE">possible</span> <span class="SpellE">to</span> <span class="SpellE">enforce</span>, <span class="SpellE">with</span> <span class="SpellE">every</span> <span class="SpellE">restart</span>, <span class="SpellE">the</span> <span class="SpellE">execution</span> <span class="SpellE">of</span> set/<<span class="SpellE">node_type</span>> <<span class="SpellE">partner</span>>, set/<span class="SpellE">register</span> <<span class="SpellE">partner</span>>, set/<span class="SpellE">password</span>, etc. <span class="SpellE">This</span> <span class="SpellE">would</span> <span class="SpellE">resolve</span> <span class="SpellE">some</span> <span class="SpellE">current</span> <span class="SpellE">issues</span> and <span class="SpellE">maintain</span> a <span class="SpellE">database</span> <span class="SpellE">of</span> <span class="SpellE">our</span> links.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span class="SpellE"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>There</span></span> <span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span class="SpellE">is</span> <span class="SpellE">also</span> <span class="SpellE">the</span> <span class="SpellE">issue</span> <span class="SpellE">of</span> <span class="SpellE">callsigns</span> <span class="SpellE">that</span> <span class="SpellE">were</span> once <span class="SpellE">nodes</span> <span class="SpellE">but</span> are no <span class="SpellE">longer</span> so. The variable ‘<span class="SpellE">sort</span>’ <span class="SpellE">is</span> no <span class="SpellE">longer</span> ‘U’, and <span class="SpellE">when</span> <span class="SpellE">that</span> <span class="SpellE">callsign</span> <span class="SpellE">is</span> <span class="SpellE">used</span>, <span class="SpellE">it</span> <span class="SpellE">incorrectly</span> <span class="SpellE">appears</span> as a <span class="SpellE">node</span>. <span class="SpellE">We</span> <span class="SpellE">sysops</span> <span class="SpellE">often</span> <span class="SpellE">forget</span> <span class="SpellE">to</span> redefine <span class="SpellE">them</span> as <span class="SpellE">users</span>, <span class="SpellE">which</span> causes <span class="SpellE">this</span> <span class="SpellE">incorrect</span> <span class="SpellE">information</span> <span class="SpellE">to</span> be <span class="SpellE">propagated</span> <span class="SpellE">across</span> <span class="SpellE">the</span> <span class="SpellE">network</span>. <span class="SpellE">However</span>, I am <span class="SpellE">beginning</span> <span class="SpellE">to</span> <span class="SpellE">suspect</span> <span class="SpellE">that</span> <span class="SpellE">some</span> <span class="SpellE">deliberately</span> <span class="SpellE">retain</span> <span class="SpellE">this</span> <span class="SpellE">attribute</span>, <span class="SpellE">even</span> <span class="SpellE">though</span> <span class="SpellE">they</span> <span class="SpellE">know</span> <span class="SpellE">it</span> <span class="SpellE">is</span> <span class="SpellE">incorrect</span>. I am <span class="SpellE">unsure</span> <span class="SpellE">whether</span> <span class="SpellE">this</span> <span class="SpellE">is</span> done <span class="SpellE">to</span> <span class="SpellE">make</span> <span class="SpellE">it</span> <span class="SpellE">easier</span> <span class="SpellE">to</span> <span class="SpellE">establish</span> more <span class="SpellE">than</span> <span class="SpellE">three</span> <span class="SpellE">sessions</span> <span class="SpellE">on</span> <span class="SpellE">the</span> <span class="SpellE">network</span>.</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Kin EA3CV</span></p>
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<p class="MsoNormal"><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-font-family:"Times New Roman"'>De:</span></b> <span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-font-family:"Times New Roman"'>Dxspider-support <dxspider-support-bounces@tobit.co.uk> <b>En nombre de</b> Dirk Koopman via Dxspider-support<br />
<b>Enviado el:</b> viernes, 24 de enero de 2025 14:38<br />
<b>Para:</b> dxspider-support@tobit.co.uk<br />
<b>CC:</b> Dirk Koopman <djk@tobit.co.uk><br />
<b>Asunto:</b> Re: [Dxspider-support] Fwd: Max Spot per Minute (how to avoid flooding)</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>We seem to be starting to lose the "battle" between nodes <-> users on client programs issuing data (for whatever reason).<br />
<br />
The piece of code shown below was introduced in March 2023, together with the following comment underneath:<br /></span><span style='font-family:"Courier New";mso-fareast-font-family:"Times New Roman"'><br />
These default values are set generously deliberately to allow certain user<br />
programs to get with the program and reduce the number of cmds that they<br />
issue on connection down to something reasonable. For instance, I cannot<br />
see why things like name, qth, lat/long/QRA (amongst several other sticky<br />
user attributes that only need to be entered once) are sent on every login.<br />
<br /></span> <span style='mso-fareast-font-family:"Times New Roman"'>It is clear to me that the situation has got worse and the time to tighten the defaults has arrived. In addition, I will add a general re-login delay so that programs cannot instantly reconnect and just carry on. Maybe with a second/other safeguard of recording the IP address rather than the callsign with an backoff timer after Z number of "fast" attempts to re-login. Or something like that (maybe a timed local IP address ban?).<br />
<br />
I will happily accept suggestions for "better" values for X = 16 and Y = 9 below. As well as other ways of discouraging this sort of behaviour.<br />
<br />
I fail to understand the point of spotting an entire FTx channel's decoded callsigns. You haven't worked them, your program just heard them, but you're probably drinking tea and working someone else OR you've simply left the computer on whilst going out for the day. This, incidentally, is why I won't, ever, gate out raw skimmer spots to users. Speaking of which: the FTx skimmer network will likely do a better job than your random user "skimmer" so why not just connect to that instead!<br />
<br />
This person appears to have taken it upon himself (gender deliberately chosen) to become an FTx skimmer that gates his data out into the general spot pool. But he could not do this unless the CLIENT SOFTWARE he is using provides that facility. So the obvious solution to this is to try to identify the author(s) of the client software and persuade them to not allow this sort of thing to occur. Experience shows that authors are reluctant to change the behaviour of their creations (I can understand that) and simply ignore requests for changes from "outside" their user communities. It probably takes at least 15 years of full time professional programming before one truly believes that all software has bugs, or undesirable behaviours that have been discovered by users that require changes. Unfortunately many authors are hobby programmers and resistant to external pressure for change. Probably, because their software is written in a way that makes it too difficult to change. I remember that :-)<br />
<br />
As I have been writing this, I am starting to get a bit annoyed by the thoughtlessness of some authors and users. So I will implement an linearly increasing IP address ban time, together with message on login (with a fixed delay of say 10 secs before forced disconnect) saying something like "You are sending too many commands too quickly, you are banned from reconnecting until <date/time>". Obviously if they reconnect and do it again (within some interval) they will be have more time added - and - "good behaviour" over a period of time will reduce their penalty ban time.<br />
<br />
Your thoughts and suggestions for default values for these times / intervals will be gratefully received.<br />
<br />
73 Dirk G1TLH<br />
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