I run my Linux servers with a minimal install and no user interface. This usually doesn't cause an issue because I can do 99+% of my work from the command line. Even most of the applications I use have "-console" interfaces.
However, every once in a while, like once/year, I run into an application that only runs with a graphical user interface. When this happens I go into my "how did I do this the last time." Very simply, it turns out.
I run RHEL 7.x on VMware Workstation 10 on a Windows 7 laptop. It is an i7 quad-core CPUwith 32 GB RAM and (2) 1 Tb SSD drives. It does the job fairly well.
A solution to the problem that works well for me is:
2) Run XMing and then view the log file.
The IP address is shown in the file as "XdmcpRegisterConnection: newAddress 172.20.10.3". It is also the IP (one of them anyways) for the laptop that can be determined in several ways.
The DISPLAY value is shown in the file as "DISPLAY=127.0.0.1:0.0".
Combine the 2 so that you get DISPLAY=172.20.10.3:0.0.
3) Use Putty, from Windows 7 laptop, y to open a SSH connection with X11 forwarding.
4) On the Linux server enter "export DISPLAY=172.20.10.3:0.0" on the command line.
5) Now you can run the application that requires a graphical user interface.