Configure X11 on Solaris 11.4

Log into the SPARC server as root.   The server needs to have access to a software repository so that you can install the solaris-desktop package as follows:

# pkg install solaris-desktop

root@BSPZTSTDB0303:~# pkg install solaris-desktop
           Packages to install: 379
            Services to change:  15
       Create boot environment:  No
Create backup boot environment:  No

DOWNLOAD                                PKGS         FILES    XFER (MB)   SPEED
Completed                            379/379   73183/73183  994.0/994.0  2.7M/s

PHASE                                          ITEMS
Installing new actions                   89149/89149
Updating package state database                 Done
Updating package cache                           0/0
Updating image state                            Done
Creating fast lookup database                   Done
Updating package cache                           4/4
root@BSPZTSTDB0303:~# vi /etc/gdm/custom.conf
root@BSPZTSTDB0303:~# inetadm -e xvnc-inetd
root@BSPZTSTDB0303:~# svcs -vx

When the installation is complete, enable XDMCP connections by editing the /etc/gdm/custom.conf file. Add this line to the end of the file:

[xdmcp]
Enable=true

Enable xvnc-inetd as follows:

# inetadm -e xvnc-inetd

Restart the graphical login service (gdm) as follows:

# svcadm restart svc:/application/graphical-login/gdm:default

Check the state of the gdm service by typing:

# svcs -vx

configure X-Server to accept remote connections.

#svccfg -s application/x11/x11-server
svc:/application/x11/x11-server> setprop options/tcp_listen = boolean: true
svc:/application/x11/x11-server> end

#svccfg -s xvnc-inetd
svc:/application/x11/xvnc-inetd> setprop inetd_start/exec = astring: "/usr/bin/Xvnc -geometry 1280x720 -inetd -query localhost -once securitytypes=none"
svc:/application/x11/xvnc-inetd> end

# svcadm disable gdm xvnc-inetd; svcadm enable gdm xvnc-inetd

Step 5
Point your favourite VNC client at your Solaris server and test if it accepts your VNC connection – you should be presented with a Username/Password login screen.

You could just install solaris -large-server or just a minimal packages (if you prefer) to allow runinstaller to run.

# pkg install xauth x11/diagnostic/x11-info-clients library/motif terminal/xterm

Download client/ viewer

https://www.realvnc.com/en/connect/download/viewer/