I had installed the Oracle Directory Server Enterprise Edition on my RedHat Enterprise Linux 6.2 VM using the Zip distribution into /opt/dsee7
Although the network adapters were configured and I was logged in as root, on issuing the following command, nothing happened
#/opt/dsee7/bin/dsccsetup ads-create
after what seemed ages, I got the message saying
Failed to find a free port number !
Searching through the forums I finally found the answer to the problem in this thread
https://forums.oracle.com/forums/thread.jspa?threadID=2227812
https://forums.oracle.com/forums/thread.jspa?threadID=2227812

