Oracle Net Messages (TNS) TNS-00006 INTCTL: HOST variable is not defined 8i/9i July 30, 2016 No Comments Cause: The HOST variable was not set.Action: Set the variable HOST properly and restart the INTCTL program. Solution doesn't works for you? POST your error in our discussion panel below. Our DBA team will be happy to help you :) Previous Post Next Post Leave a Reply This site uses Akismet to reduce spam. Learn how your comment data is processed.