How to : Confiugre Pidgin To Connect Microsoft OCS/LCS IM Server

Note:I am seeing so many people visiting this page, but leaving early.. please feel free to comment at comment section what problems you faced in installing PIDGIN, i am very much interested in helping you..

Good news for all the Linux lovers who are working in Corporate companies where most of the communication is through Microsoft OCS(Office Communicator Software)/IBM Same time IM clients. OCS is primarily used for IM communications, but if you want to use OCS in Linux its not possible till this point. Recently Pidgin started supporting SIP(Session Initiation Protocol) Protocol. So for the people how know about MS OCS. Here is the short notes for you.

MS OCS is a properitery software is an enterprise real-time communications server, providing the infrastructure for enterprise instant messaging, presence, file transfer, Peer to peer and multiparty voice and video calling, ad hoc and structured conferences (audio, video and web) and PSTN connectivity. These features are available within an organization, between organizations, and with external users on the public internet, or standard phones, on the PSTN as well as SIP trunking.

--Wikipedia.org
Its little bit tricky to install and use it. Here are the steps how to accomplish this.

Note : By default Pidgin will not support MS OCS. We require a third party (pidgin-sipe) to accesses MS OCS.

Step1 : Check if pidgin is installed or not, From Ubuntu9.10 pidgin is removed as default IM client. So you have to install it.

Installation in Ubuntu :
#apt-get install pidgin

Installing in Redhat/Fedora/CentOS :
#yum install pidgin

Step2 : Install Pidgin-sipe plugin

Installation in Ubuntu :
#apt-get install pidgin-sipe

Installation in Redhat/Fedora/CentOS :
I am not sure if its included in Fedora/Redhat/CentOS repos. If you get error in installing through YUM, install it through source package.
#yum install pidgin-sipe
or
Download source from Soruceforge here.
#mkdir ~/temp
#cd ~/temp
#wget http://sourceforge.net/projects/sipe/files/sipe/pidgin-sipe-1.8.0/pidgin-sipe-1.8.0.tar.gz/download
#tar xvfz pidgin-sipe-1.8.0.tar.gz#cd pidgin-sipe
#./configure;make;make install

Step3 : Most of the time when you install software/packages in Linux you no need to restart the mechine. But this addon/plugin to work you have to restart your machine(its my observation, if its works without restart its good).

Step4 : Configuring Pidgin to support OCS.

Go to Applications
__Internet
__Pidgin instant messanger
__Accounts
__Manage Accounts
__Add

Here is the screen shots what you have to do from here.

Enjoy using MS OCS in linux.

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All About Firefox "About Protocol"

Today I found some interesting hack about Mozilla/Firefox. I am in need of java in my Ubuntu machine. I have installed java, but I am not able to see any java related sites in my browser So when I have started searching for related topics, I found my answer how to check java is configured in your browser or not. I came to know about Firefox hidden “about protocol”. Though my browser is showing java enabled, but I am not able to see java content of site. The solution for this is to check whether java is configured properly to your browser or not.

So how to check whether java is configured or not?
Ans : Just open new tab in firefox and type about:plugins. This should show all

the plug-in’s installed in your browser.

If you didn’t find java. Then follow the below link for how to install and test it for your machine.
http://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox

And When I tweaked some more I have realized we can do much with this Firefox about protocol.
Though below things are not that much useful, but its fun to see them
Type below about commands in your Firefox and see yourself what info you can find with Firefox. My favorite one is about:robots
about:
about:blank
about:buildconfig
about:cache
about:cache-entry
about:config
about:crashes
about:credits
about:license
about:mozilla
about:plugins
about:rights
about:rights#webservices
about:robots
about:support

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Webmin

Webmin is a web based administration tool to do daily admin activities.
by using this tool we can configure.
1. User management
2. Disk management such as RAID, LVM etc.
3. Disk Quotas
4. Services/Servers such as apache, DNS, PHP, Mysql etc
5. Will allow us to confgire/controll many systems through single interface(ie through a web browser).

For example you want to controle your linux machine remotly through no Linux machines such as windows or a mobile device. We can do the system admin activity through a web broswer. Some time I used to login to my linux server which is located in SJ, USA through my Sonyerricson C702 mobile phone to take backups.

Installation in Ubuntu
If you like to install and update Webmin via APT, edit the /etc/apt/sources.list file on your system and add the line :
deb http://download.webmin.com/download/repository sarge contrib
You should also fetch and install a GPG key with which the repository is signed, with the

Commands :
cd /root
wget http://www.webmin.com/jcameron-key.asc
apt-key add jcameron-key.asc
You will now be able to install with the commands :
apt-get update
apt-get install

Installation in Redhat/Fedora
#yum install perl
#yum install webmin

After installation webmin server will work on localhost at 10000 port, which is default port for webmin.

To access webmin through your browser
http://localhost:10000

Why a unix admin should know about Webmin?
Ans : Webmin is a one stop to administer your machine we can manage allmost all the servers, disk management, user management etc. Which is supported on different operating systems, recently it is supporting Windows too(with limitations) .

Which are the operating systems we can install webmin to administer the system?
Ans : Bcz it is supported in many unix and linux flavors such as
1. Redhat, Fedora, SuSE and Mandrake through RPM packages
2. Debian and Ubuntu through .deb packages
3. HPUX, FreeBSD and Slackware Linux through source code(eg: .tar.gz and .tar.bz)
4. MS Windows through exe

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Configuration Of The Thunderbird And Adding Of Lightning Extention In Ubuntu

How to install and configure the Thunderbird and add lightning extention to the calender ?
Ans : Thunderbird is an excelent e-mail client known in open source world other popular e-mail client is evolution. As of this writing TB3 is still in beta phase so we will see how to install Thunderbird 2.0.0.23 on Ubuntu 9.10.

Step1 : Edit the source list to point the mozilla reposatory and add the below mention reposatories at the end of the file.
#gedit /etc/apt/sources.list
deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu karmic main
deb-src http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu karmic main
save and exit the file

Step2 : Update the reposatory list, that your system knows from where we should download thunderbird and install it
#apt-get update

Step3 : Now install mozilla with apt-get command
#apt-get install mozilla-thunderbird
Reading package lists. Done
Building dependency tree
Reading state information. Done

The following extra packages will be installed:
thunderbird
Suggested packages:
thunderbird-gnome-support

The following NEW packages will be installed:
mozilla-thunderbird thunderbird
0 upgraded, 2 newly installed, 0 to remove and 192 not upgraded.
Need to get 12.2MB of archives.
After this operation, 36.3MB of additional disk space will be used.
Do you want to continue [Y/n]? y

Get : 1 http://archive.ubuntu.com karmic/main thunderbird 2.0.0.23+build1+nobinonly-0ubuntu1 [12.1MB]

Get : 2 http://archive.ubuntu.com karmic/main mozilla-thunderbird 2.0.0.23+build1+nobinonly-0ubuntu1 [62.0kB]
Fetched 12.2MB in 1min 52s (108kB/s)
Selecting previously deselected package thunderbird.
(Reading database ... 114241 files and directories currently installed.)
Unpacking thunderbird (from .../thunderbird_2.0.0.23+build1+nobinonly-0ubuntu1_i386.deb) ...
Selecting previously deselected package mozilla-thunderbird.
Unpacking mozilla-thunderbird (from .../mozilla-thunderbird_2.0.0.23+build1+nobinonly-0ubuntu1_all.deb) ...
Processing triggers for man-db ...
Processing triggers for desktop-file-utils ...
Setting up thunderbird (2.0.0.23+build1+nobinonly-0ubuntu1) ...
Setting up mozilla-thunderbird (2.0.0.23+build1+nobinonly-0ubuntu1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place

Step4 : To access newly installed Thunderbird go to Applications--> Internet --> Mozilla thunderbird mail.

Step5 : Now configure and add the lightning extention for getting calender.

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How To View CHM Files In Linux?

If you are a book worm then defiantly you will know what is a CHM file?
For those who don't know the CHM files let me explain it. CHM file is a compiled HTML files/document(s) in to a e-book kind so that we can view and index easily. This formate is the proprietary of Microsoft and by default the application to view CHM files in windows is installed.

So what about viewing the files in Linux?
We have to install CHM file viewer. There are so many applications to achieve this such as

GTK

* gnochm
* CHMsee
* FBReader

Qt

* Okular
* kchmviewer
* Kchm
* chmcreator

Other

* xCHM
* Archmage
* DisplayCHM
* CHM Reader Firefox addon

In this post I will show you how to install gnochm application to view CHM files.

Installing gnochm in Redhat
#rpm -ivh libchm1.0.40-1.i386.rpm
#rpm -ivh python-chm.0.8.4-1.i386.rpm
#rpm -ivh 0.9.11-2.i386.rpm

Installing gnochm in Ubuntu
#apt-get install gnochm

Please comment regarding this post:-)

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Ubuntu 9.10 Released With New Features

As October is going to end, new OS version of well know UBUNTU is released from Canonical. And the code name of this OS is Karmic Koala. From this release UBUNTU entered in to notebook OS too. So there are three variants of UBUNTU now, which are as follows.

1.UBUNTU(Kubuntu,edubuntu etc)

2.Net-book Remix

3.Ubuntu server edition

Here are the improvements to note in this new release

1. A faster graphical booting(No more text booting if you wish, like RHEL5 provided some 2 years back.

2. ubuntu one client included for online storage of your personal files.

3. Empathy instant messenger for pidgin.

4. So many packages/software's are upgraded to newer versions such as GNOME, FireFox and kernel.

5. New software upgrading/installation tool.

6.Audio/sound management improved a lot between different applications

So how to get this new UBUNTU?

Here are the ways to get your new UBUNTU

Way1 : Try to download ISO image from Ubuntu site, then create your own UBUNTU CD and then install it.

Way2 : Try to download ISO image from torrent sites such as http://www.isohunt.com or http://www.mininova.com, or click here / official ubuntu torrent file to download torrent file.

Way3 : Request a free CD from Ubuntu.

Way4 : Just upgrade your UBUNTU from lower version, for that you have to just type the below command in graphic mode to get upgrade window.

$sudo update-manager -c -d

You may get the below error when you try to upgrade such as "Authenticating the upgrade failed. There may be a problem with the network or with the server."

To resolve this issue you have to install security keys, login with normal user execute below command
$gpg

Once it says Go ahead and type your message, you can just press Ctrl-C to get back to the command prompt. Then execute again upgrade command.

$sudo update-manager -c -d

Please comment ur thoughts regarding this post.

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Firefox 3.5 Released

Fire fox 3.5 version is released with some good features such as private browsing(which is already implemented in IE and Chrome some long time back). Here are the features which is new to FF3.5

1. Private browsing
2. Tab tearing
   
3. HTML5 support
4. Forget this site
5. Geo-location

I see most of the features are brought from Chrome.. What you say people?
And here is the link to download Latest Firefox browser

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rdesktop - A Remote desktop utility to access Window's from Linux

I have windows 2003 domain controller & RHEL 5 machines. I want to access applications which are installed on windows domain controller from RHEL5 machine.  what should I do ?

 As most of the time we will be accessing our Linux machines from windows using putty/ssh.
 so how to access Windows from linux?
its simple there is an utility in linux called rdesktop which will do the work. Just install the applicaion


Step1:Install rdesktop utility


#yum install rdesktop


Step2: Logging in to remote server


#rdesktop  hostname/ip


Example:


#rdesktop 178.1.23.4


Issues in using rdesktop


Issue1:I am unable to connect to remote windows server?


          1)This issue is manly due security issues such as port blocking, rdesktop uses rdp protocol which uses 3389 port, so this port should not be blocked.


           2)On windows system we have to enable remote desktop option, this can be done as below


       right click on my computer
          ||
          ==>properties
              ||
              ==>Remote tab
                  ||
                  ==>check mark remote desktop option
                      ||
                      ==>apply and ok

Now try to login to it


Issue2:I cant see display properly for remote system(resolution problem and window size problem)


           To resolve this issue we have to use rdesktop utility with some options


#rdesktop -g resolution -a colors ipadd


here -g is for specifying resolution and -a for specifying colors depth


for example i want a good resolution  and color depth of 24 bit use following command


#rdesktop -g 90 -a 24 178.2.13.4


Please let me know how it works.

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Light Weight Linux 2

Yet another light weight linux for window's users :
And Linux is another distro that runs inside windows like wubi. It uses co Linux and is based on Ubuntu. It will allow you to run Linux applications in Windows. It is yet one more option for running Linux and is a way to get your feet wet without even leaving Windows.
Purists will cringe because it does not free the user from Windows problems such as viruses and fragmented hard drives since it sits on a top of Windows, but it is just something to consider. If you are stuck with using windows in your day job and want to add a little Ubuntu flavor then give it a try.

Visit them at : http://www.andlinux.org/

I have tried other kinds of CoLinux in the past, but this one is Ubuntu based. I think that it was called Topogilinux when I used it and it was not Ubuntu flavored. I am not sure if they are the same project or just similar. Anyway it works and is easy to setup.

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Light Weight Linux

There are so many applications which will allow you to use linux on Windows such as VMWARE , Virtual Box etc. Or there is some emulator kind of software's which will allow you to run Linux on Windows.

One such application today what I am going to discuss is wubi its just like a software we can install and it will install linux on your system with out modification of your partitions/partition table. Its as simple as pressing next, next, next and then just restart the system, you will find Ubuntu and Windows on your system and start up screen as a duel boot. This is some thing like virtual machine. And some other similar applications are.
www.cygwin.com
www.mingw.org
www.colinux.org

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