I am an application developer using netbeans on ubuntu 7.10... I am writing an application which requires me to be able to open up and listen on port 80, and on port 25. Whenever I try to listen on these ports I am told they are in use by the operating system and the exception that is thrown in java, however, I dont have apache installed nor do I have sendmail or postfix installed. I have checked thoroughly through the package manager looking for a web service or mail service and there is nothing. So my next th0ought was maybe theres some policy in iptables, so I shut iptables down, and nothing. Then I removed iptables completely and still nothing.
Can someone please tell me how to clear these ports, and limitations so that I can listen on these ports, and bind sockets to local IP addresses?
Worth 500 points.