I'm new to Ubuntu. I have built a LAMP server. Everything is working well except for my Remote connection to the server. Initially I was able to connect to the server using Tightvnc. But for some reason now my connection is being refused. I checked the ports that's listening and I don't see port 5900 in the list anymore. This was the port I was using to connect on. How can I get reconnected using tightvnc?