Select the GUI Installer Method

Select either X11 forwarding using secure shell (SSH) or the virtual network computing (VNC) to do installations with a graphical user interface (GUI) installer on your Linux system.

Configure SSH with X11 Forwarding

You can use either the -X or -Y flag to enable X11 forwarding through SSH when you log in as the root user. For example:
```
ssh –Y root@server-name
```
Note:
If you do not have DNS on your server or the server name does not work, enter the IP address of the server.
(Optional) Install the xorg-x11-xauth package (if it is not already installed). For example:
```
yum install xorg-x11-xauth
```
You can use either the -X or -Y flag to enable X11 forwarding through SSH when you disconnect and log in as the oracle user. For example:
```
ssh -Y oracle@vm
```
Find the values for the DISPLAY variable with the xauth list command.
```
$ xauth list
<domain name>/unix:11
<domain name>/unix:10
```
In the example above, either 11 and 10 are suitable values for the DISPLAY variable.

Configure VNC

You can use either the -X or -Y flag to enable X11 forwarding through SSH when you log in as root. For example:
```
ssh –Y root@server-name
```
Install the Desktop package group, which includes X11 and gnome-desktop. For example:
```
yum install @desktop
```
Install a VNC server. For example:
```
yum install tigervnc-server
```
Reboot the server.
Log in as root.
Start the VNC server.
```
vncserver :1
```