how to find information about a vncserver that is already running

Nothing useful from Google.

Guruspeak (Chicago edition) :

netstat -na
Look for processes listening on port 5900 and upwards.

WolframAlpha Numerical Recipe Output

My search input was : "smallest power of 2 greater than given number"

Says WA isn't sure what to do with your input. Come on, this one's a sitter. I expect it to give me the pseudocode to get this.

I also tried "how to find ..". No luck there. Of course it's a simple problem, but I have things to get done.