ZimbraDesktop Installation on Ubuntu

Installation

Download the ZibraDesktop Linux version from following link:

http://www.zimbra.com/downloads/zd-downloads.html

Extract the files from the archive using (sudo in this case is very important!):

sudo tar xzvf zdesktop_2_0_b10580_linux_i686.tgz

Then cd into that directory:

cd zdesktop_2_0_b10580_linux_i686/

And run:

sudo perl install.pl

Enter your password and hit return/enter.

Follow the on-screen instructions, if you choose the defaults, you should have a launcher on your desktop, we need to get rid of that and the zdesktop directory in your home folder:

cd ~
sudo rm -rf zdesktop Desktop/zd.desktop

Then we need to create a new one using:

/opt/zimbra/zdesktop/linux/user-install.pl

Uninstallation

If you used the defaults during the installation, you can remove ZimbraDesktop by issuing the following commands. (note: this section is not yet complete)

sudo rm -rf /opt/zimbra/

Can not connect to Cloud Service, Google Cloud Print on Ubuntu 12.04 Server

(do this as root or as sudo -i)
git clone https://github.com/armooo/cloudprint.git
cd cloudprint
wget http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.eggsetuptools-0.6c11-py2.7.egg
python ez_setup.py
cd cloudprint (there is another cloudprint dir inside the first)
./cloudprint
now it should work.

The following table lists Microsoft Office features and their LibreOffice equivalents.

    Microsoft Office XP   =>  LibreOffice

• AutoShapes  =>  Gallery Objects

• Change Case  =>  Case/Characters

• Click and Type  =>  Direct Cursor

• Compare and Merge Documents  =>  Compare

• Document Map  =>  Navigator

• Formula Auditing  =>  Detective

• Lines and Page Breaks  =>  Text Flow

• Page setup  =>  Format - Page

• Mail Merge  =>  Form Letter

• Markup  =>  Changes - Show

• Refresh Data (in Excel)  =>  Refresh Range

• Replace text as you type  =>  AutoCorrect

• Show/Hide  =>  Nonprinting Characters, Hidden Paragraphs

• Spelling and Grammar  =>  Spellcheck

• Track changes  =>  Changes - Record

• Validation  =>  Validity

• Workbook  =>  Spreadsheet

• Worksheet  =>  Sheet

• Shared Workbooks  =>  Collaboration

Passwordless SSH tuthorization on Linux

• Delete all files from => rm -rf  root/.ssh/ *
• Generate Key => ssh-keygen -t rsa -N “”
• Cope script on Second Server => scp root@192.168.1.3:/root/
• cd /root/.ssh
• cat /root/id_rsa.pub > authorized_keys 

Install LAMP on Ubuntu Server

• sudo apt-get update
• sudo apt-get install openssh-server
• sudo apt-get install apache2
• sudo apt-get install php5
• sudo apt-get install mysql-server
• sudo apt-get install libapache2-mod-php5
• sudo apt-get install php5-mysql
• sudo apt-get install mysql-client
• sudo apt-get install php5-curl
• sudo apt-get install php5-gd
• sudo apt-get install php5-idn
• sudo apt-get install php5-imagick
• sudo apt-get install php5-imap
• sudo apt-get install php5-mcrypt
• sudo apt-get install php5-memcache
• sudo apt-get install php5-mhash
• sudo apt-get install php5-ming
• sudo apt-get install php5-ps
• sudo apt-get install php5-pspell
• sudo apt-get install php5-recode
• sudo apt-get install php5-snmp
• sudo apt-get install php5-sqlite
• sudo apt-get install php5-tidy
• sudo apt-get install php5-xmlrpc
• sudo apt-get install php5-xsl
• sudo apt-get install php5-json
• sudo apt-get install php5-cli
• sudo apt-get install php-pear
• sudo apt-get install php-apc
• sudo apt-get install phpmyadmin
• sudo apt-get install curl
• sudo apt-get install sendmail
• sudo apt-get install ethtool
• sudo apt-get install nfs-kernel-server
• sudo apt-get install nfs-common
• sudo apt-get install portmap
• sudo apt-get install perl
• sudo apt-get install libnet-ssleay-perl
• sudo apt-get install openssl
• sudo apt-get install libauthen-pam-perl
• sudo apt-get install libpam-runtime
• sudo apt-get install libio-pty-perl
• sudo apt-get install htop

Update Java 1.6 to 1.7 in Ubuntu

Open Terminal and run the following commands;-

• sudo apt-get install python-software-properties
• sudo apt-add-repository ppa:openjdk/ppa
• sudo apt-get update
• sudo apt-get install openjdk-7-jdk
• sudo update-alternatives --config java (Type the Version number and press Enter)
• sudo java -version

Ubuntu 4GB Ram Limitation and Solution

Q. I've total 8 GB RAM installed in my dual boot Ubuntu Linux 8.10 (32 bit) version HP workstation. But free -m command only shows 3291 (3G) memory. How do I use 8GB RAM under Ubuntu Linux?

A. You need to install Physical Address Extension (PAE) aware kernel under 32 bit Ubuntu Linux. It is a feature of x86 and x86-64 processors that allows more than 4 Gigabytes of physical memory to be used in 32-bit systems.

Without PAE kernel, you should see something as follows:

Check your present Memory

$ free -m

Sample output:

           total       used       free     shared    buffers     cached

Mem:          3291        801       2489          0         95        342

-/+ buffers/cache:        363       2927

Swap:         1906          0       1906

Install PAE enabled kernel

Open terminal and type the following command if you are using Ubuntu version Ubuntu v9.04 and earlier:

$ sudo apt-get update

$ sudo sudo apt-get install linux-headers-server linux-image-server linux-server

If you are using Ubuntu v9.10 (Karmic Koala) and above, enter:

$ sudo apt-get install linux-generic-pae linux-headers-generic-pae

Once kernel images installed, just reboot your workstation, type:

$ sudo reboot

After reboot, login into your system and type the following command to verify memory usage:

$ free -m

Sample output:

           total       used       free     shared    buffers     cached

Mem:          8105       1292       6812          0         38        483

-/+ buffers/cache:        770       7334

Swap:         1906          0       1906