Editing VNC SERVER IMPLEMENTATION WITH LDAP at BITS Pilani

{{Outdated|reason=Old Technology and Customer  But Relevant for Understanding|date=2026-07}}
[[Category:Bits pilani]]

==<center>'''VNC SERVER IMPLEMENTATION WITH LDAP'''</center>==


<center>'''NAVDEEP MATHUR'''</center>


== '''INSTALLATION OF VNC'''==

# First remove vnc package from server because we are using here realvnc latest version.

# Download realvnc 5.03 package from [http://www.realvnc.com/download/binary/1193 http://www.realvnc.com/download/binary/1193]

# Extract the package

# Then you got some realvnc rpm’s then install that rpm’s by

<nowiki>rpm –ivh <package_name></nowiki>


# If you have genuine license then enter licence key by command

vnclicense –add FRFJD-6SXCL-92L2Y-RSCCA-GWVEA


# Then create display session for joining remote , login from any user then run command “vncserver” and it got the session number like 1,2,3…..

# Then from vncviewer Enter ip:dispalynumber (Eg 172.20.4.39:1)

# Enter username and password of user then join.

= '''ISSUES IN VNC AND TROUBLESHOOTING'''=

# LDAP user not able to login vnc but system user will take.

=='''Resolution : '''==


* At installation time vnc will create file inside /etc/pam.d/vncserver
* No need to change this file
* Create one file in /etc/pam.d/vncserver.custom

Then write

'''auth required pam_ldap.so'''

'''account required pam_ldap.so'''


''':save and exit'''

* Create one more file /etc/vnc/config.d/common.custom

Then write 

'''PamApplicationName=vncserver.custom'''

:save and exit


This file refer to vncserver.custom in pam.d

* Now restart vnc service “/etc/init.d/vncserver-x11-serviced restart”
* Now login from ldap user then run command '''“vncserver”'''
* Now you can check from vncviewer to login as a ldap user and password.

=PROBLEM : Font Issue =

VNC Server not able to take fonts from system “Application fails without proper fonts

=='''Resolution:'''==

* By default vncserver have wrong path of fonts , check

Vim /etc/vnc/config

-fp "/usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/75dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,/usr/share/fonts/X11/75dpi,/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,built-ins"

* /usr/share/fonts/X11 are the wrong path correct path is /usr/share/X11/fonts , So need to be change but don’t change on this file.
* Create new file /etc/vnc/config.custom

-fp "/usr/share/X11/fonts/misc,/usr/share/X11/fonts/100dpi/:unscaled,/usr/share/X11/fonts/75dpi/:unscaled,/usr/share/X11/fonts/Type1,/usr/share/X11/fonts/100dpi,/usr/share/X11/fonts/75dpi"


:save and exit

* Then restart vnc service as well as from user then run “vncserver” then it take correct path of fonts.

=Problem with Resolution on VNC Viewer=

* BITS Pilani have 1600x1200 pixels monitors, So need to change pixels from user.
* So run command with “vncserver –geometry 1600x1200” from user
* Then check with vncviewer.