Purchase Date:

sudo vi /etc/cron.daily/autoupdt
#!/bin/bash
apt-get update
apt-get upgrade -y
apt-get autoclean
chmod 755 /etc/cron.daily/autoupdt

sudo apt-get install dconf-editor
sudo -i
xhost +SI:localuser:lightdm
su lightdm -s /bin/bash
dconf-editor
1. Navigate to com –> canonical –> unity-greeter. 
2. Change the background value to your custom image: /usr/share/backgrounds/Forever_by_Shady_S.jpg
3. Disable both draw-grid and draw-user-backgrounds

1. Create a script:

   sudo vi /usr/bin/lightdmxrandr
   #!/bin/sh
   xrandr --output VGA-0 --primary --mode 1024x768
   chmod a+x /usr/bin/lightdmxrandr

2. Run the script when user login

   sudo vi /etc/xdg/autostart/lightdmxrandr.desktop
   [Desktop Entry]
   Comment=Change screen resolution to 1024x768
   Name=Lightdmxrandr
   Exec=/usr/bin/lightdmxrandr
   Terminal=false
   GenericName=
   Type=Application
   Categories=
   Icon=
   

1. Install Ubuntu 14.04.1 and run all the updates
2. Install openssh-server:

   sudo apt-get install openssh-server

3. Install xawtv:

   sudo apt-get install xawtv
   sudo vi /usr/share/applications/xawtv.desktop
   [Desktop Entry]
   Version=3.103
   Name=xawtv
   Exec=/usr/bin/xawtv
   Icon=/usr/share/xawtv/xawtv32.png
   Terminal=
   Type=Application
   Categories=Application
   sudo scp hongyun@hyper:opticsLab/xawtv32.png /usr/share/xawtv/.
   

4. Disable Guest Account:

   sudo vi /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
   [SeatDefaults}
   greeter-session=unity-greeter
   greeter-show-manual-login=true
   greeter-hide-users=true
   allow-guest=false

5. Enable root login and then login as root:

   sudo passwd root

6. Modify /etc/fstab

   sudo vi /etc/fstab add the following line:
   # network nfs mount
   filesvr.phas.ubc.ca:/home     /home       nfs     rw,rsize=32768,wsize=32768,hard,intr,bg      0 0
   filesvr.phas.ubc.ca:/home2	  	/home2      nfs     rw,rsize=32768,wsize=32768,hard,intr,bg      0 0
   filesvr.phas.ubc.ca:/ahome	  	/ahome      nfs     rw,rsize=32768,wsize=32768,hard,intr,bg      0 0
   

7. Move local home directory and create network mount directory:

   mv /home /lhome
   mkdir /home
   mkdir /home2
   mkdir /ahome
   vi /etc/passwd		# Change home to lhome in this file

8. Install nfs-common:

   sudo apt-get install nfs-common
   sudo mount -a

9. Configure LDAP Authentication:

   sudo apt-get install ldap-auth-client nscd
   	host: ipa.phas.ubc.ca
   	base: dc=phas,dc=ubc,dc=ca
   	uri: ldap://ipa.phas.ubc.ca
   	ldap_version: 3
   sudo auth-client-config -t nss -p lac_ldap
   pam-auth-update
   
   mkdir /etc/ldap/cacerts
   scp root@hyper:cacert.asc /etc/ldap/cacerts/.
   vi /etc/ldap.conf
   base dc=phas,dc=ubc,dc=ca
   uri ldap://ipa.phas.ubc.ca
   uri ldap://ipa02.phas.ubc.ca
   ldap_version 3
   pam_password md5
   nss_base_passwd	cn=users,cn=accounts,dc=phas,dc=ubc,dc=ca
   nss_base_group		cn=groups,cn=accounts,dc=phas,dc=ubc,dc=ca
   ssl start_tls
   sudo vi /etc/ldap/ldap.conf
   BASE		dc=phas,dc=ubc,dc=ca
   URI		ldap://ipa.phas.ubc.ca ldap://ipa02.phas.ubc.ca
   ldap_version	3
   TLS_CACERT	/etc/ldap/cacerts/cacert.asc
   TLS_REQCERT	allow
   bind_timelimit 	10
   bind_policy	soft
   
   /etc/init.d/nscd restart
   Test ldap working or not:
   getent passwd
   id username
   

10. Remove Switch User Account option:

    sudo vi /usr/share/glib-2.0/schemas/com.canonical.indicator.session.gschema.xml
    
      false
      
    Determine the visibility of the User Menu
      Allow for the user menu to be hidden by the user.
    
    cp /usr/share/glib-2.0/schemas/gschemas.compiled /usr/share/glib-20./schemas/gschemas.compiled.bk
    sudo glib-compile-schemas /usr/share/glib-2.0/schemas

11. Disable Suspend, create a new file:

    sudo vi /etc/polkit-1/localauthority/50-local.d/com.ubuntu.disable-suspend.pkla
    [Disable suspend (upower)]
    Identity=unix-user:*
    Action=org.freedesktop.upower.suspend
    ResultActive=no
    ResultInactive=no
    ResultAny=no
    
    [Disable suspend (logind)]
    Identity=unix-user:*
    Action=org.freedesktop.login1.suspend
    ResultActive=no
    ResultInactive=no
    ResultAny=no
    
    [Disable suspend when others are logged in (logind)]
    Identity=unix-user:*
    Action=org.freedesktop.login1.suspend-multiple-sessions
    ResultActive=no
    ResultInactive=no
    ResultAny=no