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<p>Hi Kin,</p>
<p>OK - then if you want to keep an eye on the app then there a
couple of ways to do that. </p>
<p>One of my personal favourites is to implement SmokePing. You
could create a dxspider specific probe using it.</p>
<p><a class="moz-txt-link-freetext" href="https://oss.oetiker.ch/smokeping/">https://oss.oetiker.ch/smokeping/</a></p>
<p>It allows complex probes to be created to keep an eye on hosts
and apps and make nice graphs around the returned results.<br>
</p>
<p><br>
</p>
<p>Or for just doing quick port checks you can use netcat thus...</p>
<p><font face="monospace"><b>nc -vz host port</b></font><br>
</p>
<p>This will at least let you know that the destination app port is
open and listening with results like...</p>
<p><b><font face="monospace">Connection to host (IP_address) 7300
port [tcp/*] succeeded!</font></b><br>
</p>
<p>And you could always wrap nc in a shell script to do a 100
"pings" or whatever.<br>
</p>
<div class="moz-cite-prefix">cheers</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Tim<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 25/8/24 20:11, Kin wrote:<br>
</div>
<blockquote type="cite"
cite="mid:000201daf6d7$2b336140$819a23c0$@cronux.net">
<pre class="moz-quote-pre" wrap="">Hi Tim,
Good explanation of ICMP ping. What I was asking about was ping at the application layer.
Conventional ping -as you know- only tells me if the host is accessible, but not if the DXSpider application is UP and responding.
What I am trying to do is use the internal spider command, also called ping, to see the status of the destination node. Obviously from the spider application itself. Here the node callsign (application level) is used.
I liked your explanation of ping, a widely used tool that complements others, especially for those of us who have been working in networks and systems.
I appreciate your answer.
</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
VK2XAX : QF68KM : ITU59 : CQ30 : ORARC : WIA</pre>
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