How to kill TCP/TCP6 of vncserver without ~:1.pid, ~:2.pid files ? and How to uninstall vnc related files clealry?

Question

I have a big problem to set up vncserver to my lab server computer.

1. I am newbie to set up vncserver. To set up vncserver, first, I followed up someone's guide which use vnc4server. It worked, but terminal window only appeared when I connected to server computer from my desktop by using VNCviewer. so I tried to solve the problem, but I failed. From this moment, big problem has occurred. I deleted .vnc folder, vnc4server package without kill vncserver using vncserver -kill :1. Because the :01.pid file is deleted, I couldn't kill vncserver. When I tried to kill vncserver without .pid file, the Error:

   Can't find file /root/.vnc/node03:1.pid
   You'll have to kill the Xtightvnc process manually
   

   Currently, vncserver :1 and :2 is not deleted. :( I want to kill them and start setting up vncserver again. Please give me comments.

2. How to remove vnc related files and folders clearly? Cause I will re-try to set up vncserver on server computer after solving problem 1.

Thank you for your solution in advance.