title: Linux or Java commands to check JVM parameters
body: <p>When I login to linux machine and wanted to check the following parameters  from linux command line.</p>
  
  <pre><code>networkaddress.cache.ttl(java.security.Security property)
  sun.net.inetaddr.ttl
  sun.net.InetAddressCachePolicy.get()
  java.net.preferIPv4Stack (System property)
  
  Java security manager is enabled or not?
  </code></pre>
  
  <p>All above parameters can be executed from java code.
  But i want to know linux commands or java command line to find the values in the above mentioned parameters.</p>