title: Oracle database connectivity issue
body: <p>I have a oracle database instance on my local machine , which i try to connect to . </p>
  
  <p>Using SQL Developer , i can connect to it . But when i use sqlplus i cannot connect to the instance.</p>
  
  <p>The error message i get is </p>
  
  <pre><code>ORA-28547:connection to server failed,probable oracle net admin error.
  </code></pre>
  
  <p>I tried restarting my TNS service but still the issue persists.</p>
  
  <p>And i need to connect to sqlplus because  i need to import the dumps using </p>
  
  <pre><code>impdp system/***** schemas=abcd dumpfile=DUMP_500.dmp 
  </code></pre>
  
  <p>Please let me know what other information is needed , so that i can post</p>
  
  <p>Thanks</p>