title: Solr says it's running on port 8983 but can't access admin panel, also lsof missing
body: <p>My Solr version is 7.2.0 and Java version: openjdk version "9-internal"</p>
  
  <p>After I run <code>bin/solr start</code>, it says this:</p>
  
  <blockquote>
    <p>NOTE: Please install lsof as this script needs it to determine if Solr is listening on port 8983</p>
  </blockquote>
  
  <p>But I can't install lsof, because I don't have permission from my hosting provider.</p>
  
  <p>However this message is shown:</p>
  
  <blockquote>
    <p>Started Solr server on port 8983 (pid=1207). Happy searching!</p>
  </blockquote>
  
  <p>When I try to access admin panel by mydomain.com:8983/solr/, browser cannot connect to the server.</p>
  
  <p>So I suppose that Solr server isn't running even it writes "Happy searching" message, as it can't determine if Solr is listening on port 8983.</p>
  
  <p>Is there any way how to solve lsof problem? But the second question is, why Solr server isn't running?</p>