title: Stop Oracle from generating sqlnet.log file
body: <p>I'm using DBD::Oracle in perl, and whenever a connection fails, the client generates a sqlnet.log file with error details.</p>
  
  <p>The thing is, I already have the error trapped by perl, and in my own log file. I really don't need this extra information.</p>
  
  <p>So, is there a flag or environment for stopping the creation of sqlnet.log?</p>