[Oracle DataBase Server 12.1 installation on Oracle Linux 6.7]: Setup Display Manger

192.168.1.5 - ip address of my desktop
192.168.1.11 - ip address of server


If you install Oracle from Windows machine

Install XMing and additional fonts:
http://sourceforge.net/projects/xming/
http://sourceforge.net/projects/xming/files/Xming-fonts/

I strongly recommend to reboop computer. Without reboot there was a problem from some oracle installation forms (At least when i installed RAC 10).

Next we should setup connection rights.

Simplest way to do it is - right click on xming shortcut. In properties in target field add -ac (without access control)

XMing


If you install Oracle from Linux machine

On Client:

$ sudo apt-get install -y gdm


Oracle installation

If chosen gdm

# vi /etc/gdm/custom.conf


###########################
[xdmcp]

[chooser]

[security]
DisallowTCP=false

[debug]
###########################

If chosen lightgdm

# vi /etc/lightdm/lightdm.conf


###########################

[SeatDefaults]
user-session=ubuntu
greeter-session=unity-greeter
xserver-allow-tcp=true

###########################


# reboot


Commands for checks

$ sudo apt-get install -y nmap nc


$ netstat -an | grep -F 6000


tcp        0      0 0.0.0.0:6000            0.0.0.0:*               LISTEN
tcp6       0      0 :::6000                 :::*                    LISTEN


# nmap -p 6000 192.168.1.5


Starting Nmap 5.21 ( http://nmap.org ) at 2013-08-18 04:13 MSK
Nmap scan report for 192.168.1.5
Host is up (0.000044s latency).
PORT     STATE SERVICE
6000/tcp open  X11


$ nc -vv 192.168.1.5 6000
Connection to 192.168.1.200 6000 port [tcp/x11] succeeded!=


$ xhost +192.168.1.10


On Server:

To check you could install xterm or xclock


If you don’t install earlier package xdpyinfo, do it. It needs to show oracle forms on remote host.

# yum install -y xdpyinfo


# yum install -y xclock


$ export DISPLAY=192.168.1.5:0.0


$ xclock

Or you may execute next command:

$ xclock -display 192.168.1.5:0




Oracle installation