Sunday, August 31, 2014

The Alayaran.com a platform for discussion, questions and answers

The www.alayaran.com is a new website for discussion of polical or technological issues opinion and various kinds of categories. Using this website you ask for help, help other by replying the answers to the user topic or you can use it as a general website.

The website is good in design and is viewable in small devices also. It is waiting for more user to use. The advertisement is yet not allowed. But they may include it soon.

A good startup we wish a good luck.

Tuesday, June 24, 2014

The war between Gamer and Game Developer

Game is not a new term for everyone. People like to play games whether you are a young kid, a girl, a boy or an elderly person still they like to play games. There are many types of games ranges from Indoor to Outdoor or electronically. You can choose from a range of Outdoor games or choose from a range of Indoor games. If you want to play for the electronic games there are also many, that may include pc games, console games or even in phone games. Depending on your requirement you can be able to play games on either on smartphones or in PC/Consoles. Since almost all of the Indoor or Outdoor games have alternative to play in Electronic also. The demand for electronic game business is much higher than that of Real Game.

Now consider about a Outdoor game Football where almost twenty two payers actively take part in the game. If you dont have enough friends you may not be able play the real game football. But if you prefer to play the same football game in PC that may be easier or you can be able taste the football match even sitting in front of a PC. To play in the real football you may have to be physically fit but for electronic play the requirement is less. Because of this may be there are many user base in electronic world.

So we know that there are many user base, now how you are going to provide your service as a programmer. You know that if you build good game you will be huge. Since if you study about the game industry they earn billions of money using a single game. Like electronic arts earn billion using EA FIFA. So if you stress on what people are like to play and which have not much in the electronic market you can be able to make a good start; and earn a lots.

Monday, October 28, 2013

Telegram a Secure SMS Application an Open Source alternative to whatsapp

Telegram is an open source implementation of secured SMS application. It is like SMS, but more powerful. You can send messages, photos and videos to people who are in your phone contacts (and have Telegram). You can also create groups for up to 100 people.

telegram an open source alternative to whatsapp


Unlike WhatsApp a popular instant messaging service and free SMS service, Telegram is cloud-based, decentralized and heavily encrypted. As a result, you can access your messages from several devices and store an unlimited number of photos and videos in the cloud. Thanks to decentralization and encryption, Telegram is also faster and way more secure. On top of that, Telegram is free and will stay free — no ads, no subscription fees, forever.

Telegram is currently available for iPhones (iOS 5 and above) and Androids (2.2 and up). It support tablets and smartphones alike, as well as iPods (they don't have a dedicated iPad app yet, but Telegram works well on iPads too). Their also have an open API for developers, should you want to build your own applications for other platforms. In the meantime, get your best friends to switch back to iPhones and Androids.

It is Very secure. It is based on a new protocol, MTProto, built by their own specialists from scratch, with security in mind. At this moment the biggest security threat to your Telegram messages is your mother reading over your shoulder. They said they will took care of the rest.

The code available for Telegram is available on github.com. You can be able to download it from here https://github.com/DrKLO/Telegram or have a look at http://www.telegram.org their main home page.

Monday, April 1, 2013

MySQL Database Connection at OpenShift Redhat Cloud using PDO Class

I was very unhappy when my code was correct but could not connect to my mysql database in openshift. But after trying some tricks it got to work. So I will share some tips that you can also put to your PHP MySQL application in openshift.
First thing to be noted is that when you create a PHP Application in OpenShift you will get some environmental variable. Which you can view them by using echo $ENV_NAME in the shell.
Some of MYSQL DB Environmental variables in openshift clouds are follows.
OPENSHIFT_MYSQL_DB_HOST
OPENSHIFT_MYSQL_DB_PORT
OPENSHIFT_MYSQL_DB_USERNAME
OPENSHIFT_MYSQL_DB_PASSWORD
OPENSHIFT_MYSQL_DB_SOCKET
OPENSHIFT_MYSQL_DB_URL
          
You can Find more about it here OpenShift Variables

Considering we have database name 'gitspot' and have a table name having demo where there is a field 'name' and has a record 'RedHat Openshift'
Now create a php file conf.php which contains all the Database Host Port etc and the way to connect using PDO Class.
<?php
        define('DB_HOST', getenv('OPENSHIFT_MYSQL_DB_HOST'));
        define('DB_USER',getenv('OPENSHIFT_MYSQL_DB_USERNAME'));
        define('DB_PASS',getenv('OPENSHIFT_MYSQL_DB_PASSWORD'));
        define('DB_BASE','gitspot');
        define('DB_PORT',getenv('OPENSHIFT_MYSQL_DB_PORT')); 
function mysqlConnector(){
    $dsn = 'mysql:dbname='.DB_BASE.';host='.DB_HOST.';port='.DB_PORT;
    $dbh = new PDO($dsn, DB_USER, DB_PASS);
    $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    return $dbh;
}
         ?>

Now include that in your app.php

<?php
 try {
                require_once 'conf.php';
                $conn = mysqlConnector();
                $stmt = $conn->prepare('SELECT * FROM demo');
                $stmt->execute();

                while($row = $stmt->fetch()) {
                        print_r($row);          
                }


        } catch(PDOException $e) {
                echo 'ERROR: ' . $e->getMessage();
        }


?>

The result of https://app-appname.rhcloud.com/app.php

Array ( [name] => RedHat Openshift [0] => RedHat Openshift ) 


That is all how you can connect to mysql database in RedHat OpenShift cloud.

Sunday, October 14, 2012

Open Source Search Engine Apache Lucene/Solr Gets Big Update: Apache Lucene Solr 4.0 releases

On 12th October 2012 the Apache Foundation released a major update to the open source search engine building tools Lucene and Solr. Version 4.0  adds several new features aimed at making Solr easier to use, more scalable and more customizable.

Although they’re jointly developed, Lucene and Solr are actually two different things. Lucene is just a Java library, not a stand alone search engine. Solr is a search engine server built with Lucene as its core.

Lucene was created in 1999 by Doug Cutting, better known as the creator of Apache Hadoop, and has been used both companies like AOL and LinkedIn to power search features. Solr was created by Yonik Seeley in 2004. It can be used as a custom search engine, or be used to power search for a separate application.

Scalability was the Solr/Lucene team’s biggest focus for today’s release, according to Search Engine Hub — particularly scaling out as opposed to scaling up.

Web companies like Google and Amazon.com have popularized scaling out in recent years. To over simplify: when you scale up, you replace your existing servers with more powerful ones when you need more capacity. When you scale out you add more servers to your environment to add capacity. This approach is generally seen to provide more bang for the buck, but clusters of servers can be difficult to setup and manage, and distributing data across a cluster introduces a number of challenges.

To address these issues version 4.0 introduces a collection of tools designed to make it easier to build and manage Solr server clusters, including a new indexing system designed to deliver near real-time search results in a distributed environment.

These features will help Solr compete with ElasticSearch, an open source, Lucene-based search engine server that has long focused on distributed environments.

Other new features in 4.0 include a new web based UI, a spell checker and better support for spatial data (which will be useful for anyone doing geographic searches). The new version will also give users more customization and control.
LucidWorks, a company founded by Seeley, offers commercial support for the Solr.
To download Apache Solr visit here http://www.apache.org/dyn/closer.cgi/lucene/solr/4.0.0.
Apache Solr 4.0 admin screenshot

Monday, October 8, 2012

Change your lost password of Windows 7/Vista/XP Password using Ubuntu Live CD

If you have ever lost your Windows password or If you can’t log in even after trying your twelve passwords, or you’ve inherited a computer complete with password-protected profiles, worry not – you don’t have to do a fresh install of Windows. Here we’ll show you how to change or reset your Windows password from a Ubuntu Live CD/DVD.
This method works for all of the NT-based version of Windows – anything from Windows 2000 and later, basically. And yes, that includes Windows 7.

Note: If you have files on your hard disk encrypted using built-in Windows encryption, they may not be available after changing the Windows password using this method. Exercise caution if you have important encrypted files.

You’ll need a Ubuntu 9.10 Live CD/DVD, or a bootable Ubuntu 9.10 Flash Drive or later.
The program that lets us manipulate Windows passwords is called chntpw. The steps to install it are different in 32-bit and 64-bit versions of Ubuntu.

Installation: 32-bit
Open up Synaptic Package Manager by clicking on System at the top of the screen, expanding the Administration section, and clicking on Synaptic Package Manager.
sshot-1
chntpw is found in the universe repository. Repositories are a way for Ubuntu to group software together so that users are able to choose if they want to use only completely open source software maintained by Ubuntu developers, or branch out and use software with different licenses and maintainers.

To enable software from the universe repository, click on Settings > Repositories in the Synaptic window.

Add a checkmark beside the box labeled “Community-maintained Open Source software (universe)” and then click close.

When you change the repositories you are selecting software from, you have to reload the list of available software. In the main Synaptic window, click on the Reload button.

The software lists will be downloaded.

Once downloaded, Synaptic must rebuild its search index. The label over the text field by the Search button will read “Rebuilding search index.” When it reads “Quick search,” type chntpw in the text field. The package will show up in the list.

Click on the checkbox near the chntpw name. Click on Mark for Installation.

chntpw won’t actually be installed until you apply the changes you’ve made, so click on the Apply button in the Synaptic window now.

You will be prompted to accept the changes. Click Apply.

The changes should be applied quickly. When they’re done, click Close.

chntpw is now installed! You can close Synaptic Package Manager. Skip to the section titled Using chntpw to reset your password.

Installation: 64-bit
The version of chntpw available in Ubuntu’s universe repository will not work properly on a 64-bit machine. Fortunately, a patched version exists in Debian’s Unstable branch, so let’s download it from there and install it manually.

Open Firefox. Whether it’s your preferred browser or not, it’s very readily accessible in the Ubuntu Live CD environment, so it will be the easiest to use. There’s a shortcut to Firefox in the top panel.

Navigate to http://packages.debian.org/sid/amd64/chntpw/download and download the latest version of chntpw for 64-bit machines.

Note: In most cases it would be best to add the Debian Unstable branch to a package manager, but since the Live CD environment will revert to its original state once you reboot, it’ll be faster to just download the .deb file.

Save the .deb file to the default location.

You can close Firefox if desired. Open a terminal window by clicking on Applications at the top-left of the screen, expanding the Accessories folder, and clicking on Terminal.

In the terminal window, enter the following text, hitting enter after each line:
cd Downloads
sudo dpkg –i chntpw*

chntpw will now be installed.

Using chntpw to reset your password
Before running chntpw, you will have to mount the hard drive that contains your Windows installation. In most cases, Ubuntu 9.10 makes this simple.
Click on Places at the top-left of the screen. If your Windows drive is easily identifiable – usually by its size – then left click on it.

If it is not obvious, then click on Computer and check out each hard drive until you find the correct one.

The correct hard drive will have the WINDOWS folder in it. When you find it, make a note of the drive’s label that appears in the menu bar of the file browser.

If you don’t already have one open, start a terminal window by going to Applications > Accessories > Terminal.

In the terminal window, enter the commands
cd /media
ls
pressing enter after each line. You should see one or more strings of text appear; one of those strings should correspond with the string that appeared in the title bar of the file browser earlier.
Change to that directory by entering the command
cd <hard drive label>
Since the hard drive label will be very annoying to type in, you can use a shortcut by typing in the first few letters or numbers of the drive label (capitalization matters) and pressing the Tab key. It will automatically complete the rest of the string (if those first few letters or numbers are unique).

We want to switch to a certain Windows directory. Enter the command:
cd WINDOWS/system32/config/
Again, you can use tab-completion to speed up entering this command.

To change or reset the administrator password, enter:
sudo chntpw SAM
SAM is the file that contains your Windows registry. You will see some text appear, including a list of all of the users on your system.

At the bottom of the terminal window, you should see a prompt that begins with “User Edit Menu:” and offers four choices. We recommend that you clear the password to blank (you can always set a new password in Windows once you log in). To do this, enter “1” and then “y” to confirm.

If you would like to change the password instead, enter “2”, then your desired password, and finally “y” to confirm.

If you would like to reset or change the password of a user other than the administrator, enter:
sudo chntpw –u <username> SAM

From here, you can follow the same steps as before: enter “1” to reset the password to blank, or “2” to change it to a value you provide.

And that’s it!

Conclusion
chntpw is a very useful utility provided for free by the open source community. It may make you think twice about how secure the Windows login system is, but knowing how to use chntpw can save your tail if your memory fails you two or eight times!


Google Fun Hacks: Fun while searching in Google

Various Google services also hide Easter eggs meant to be amusing entertainment.
  • Searching for "anagram" shows "Did you mean: nag a ram".
  • Searching for "do a barrel roll" or "Z or R twice" will rotate the results page a full 360 degrees. This is a reference to the Nintendo video game Star Fox 64.
  • Searching for "recursion" shows "Did you mean: "recursion", which allows you to recursively run searches for recursion.
  • Searching for "Jason Isaacs" shows "Hello to Jason Isaacs", a reference to Kermode and Mayo's Film Reviews which greets Jason Isaacs with a 'hello' every week
  • Searching world cup 2014 will show a notification of "FIFA World Cup begins Thursday, June 12, 2014, and ends Sunday, July 13, 2014".
  • Searching for "tilt" or "askew" using a Webkit based browser (such as Google Chrome, Safari, or Android/iOS built-in browsers) or a recent version of Firefox (7+), makes the page 'lean' to the right a bit.
  • Around December 2011 and January 2012, Searching for "let it snow" simulates snowfall and frost on the search results. After a while, the search screen fogs up and the blue search button changes to Defrost, enabling the user to defrost the page clicking and rubbing it like a window. Interaction with the actual search screen is disabled until the Defrost button is pressed (even if the entire screen is manually defrosted). Search screen will cease to fog up once the Defrost button is pressed.
search for google pacman