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Lock/Unlock your PC with a USB flash drive

Generally, we use windows account password to lock and unlock our PC. But I found another very cool way to lock/unlock windows PC. You can use a USB flash drive to lock your PC. It works like this – When you remove the USB stick from the PC, your system locks and when you insert back the drive, your system automatically unlocks. Your USB flash drive works as a key, pretty much like they do in movies. So you can use your regular USB pen drive as an access control device. You only need to install software called Predator. Now, why would lock my PC with an USB drive if I can simply do it by pressing win key + L? I have no answer to this but if you are a techno geek who loves to try new things, this is thing for you. It works as follows:



- You insert the USB flash drive or SD Card.

- You run the Predator. You can also set it to auto start at system start up.

- You use your system and do the work.

- When you are going away, just take the USB drive or SD card with you. Once removed, the keyboard and mouse are disabled and the screen darkens.

- When your return back to your PC, you put the USB flash drive in place and everything restored immediately.

Lock PC with USB flash drive:

Using the Predator software is very easy.

1. Download the free version of Predator software from their website. It is very small in size and included in the zip folder. Unzip it and double click on the Installpredator.exe to install it.


predator install

predator

2. Run the Predator. When you run it for the first time, it will ask you to set a password and register key. Insert your USB drive and click Ok.


                                 lock PC with USB

3. Set a password of your choice and select the USB drive you want to use (in case you have more than one USB flash drive connected to PC). Your existing files on the drive will not change.
                                      
                                 lock PC with flash drive

4. Your USB Key is ready and working. You can see a green icon in notification area scanning for changes.

5. In case you lost or misplaced your pen drive, you can use the password you set and it will help you to unlock your system.

                                     USB as key   

                                     predator usb key

Other features of Predator:

1. You can protect several PCs with same USB drive.



2. It can send alert messages to Email when someone trying to access your system falsely.

3. It disables the Windows task manager when you unplug the USB drive. Nobody can stop it with Ctrl-Alt-Del.

I am not going to explain all the details of the software, but you can check and manage all of them by going to preferences. I personally use this USB lock and it works quite good. Try it and Tell me you like it or not?

NetCut: WifiKill for PC – Disable Internet of other wifi users

Few months back, I shared an Android app called wifkill to kick other devices off a wifi network. Let’s do the same thing again, but this time with a windows PC. A small software utility called NetCut(popularly known as Wifikill for PC) does the same thing which the wifikill apk app does. The main problem with the wifikill app is its requirement of a rooted android phone. But no special requirement needed for NetCut. It can be installed and operated on any normal Windows 7 and windows 8/8.1 PC.
                                                             
NetCut Windows 7 Windows 8

Note:

This post is solely for educational and learning purpose. This software should only be used on your Local wi-fi network. It is not meant to be used with public wi-fi networks. This software should not be misused and should not be used to play with any public wireless network security.

Before beginning the turorial, let’s take a look at some features of Netcut.

What NetCut can Do?

  • Netcut is a wireless network analyzer tool.
  •  You can find MAC addresses of all the devices connected to your Wireless LAN. You can find their brand name, IP address and even change their MAC address.
  • The most interesting part is you can Disable the Internet connectivity of any device connected to the wifi network.

Installing and operating NetCut (wifikill for PC):


1. First of all download the Netcut (only 2 MB in size) from the following link. Unpack the content of rar file to get the setup files.

                                              Netcut (Mediafire link)

2. Install the netcut as you install a normal software(with defaults). After completing the installation, it will begin the installation of winPcap(necessary). If not started, manually install the winPcap(included inside rar file) .

            netcut- wifikill for pc
                                       
            netcut download

            install netcut windows 8

          install winPcap windows 8

3. Restart your system. Click on the newly created Netcut icon on desktop (if you choose to create desktop icon at time of installation else run it from program list).

4. You will see the Netcut window with all the devices(including mobile phones and tablets) connected to your local wifi Internet.

                                    wifikill for pc

5. Here, you can see IP address, Physical address (MAC Address) and host name of various devices.

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6. In order to cut the Internet connectivity of a device, select it from list and click on cutoff button. The blue icon for that device will turn into red showing that device has been lost its internet connectivity. If you want to restore the internet connectivity, simply select the device and click the Resume button.
                                       
     netcut windows 7
                                   
                                  netcut windows 8
7. Notice the checkbox protect my computer on top. Checking it will ensure that your device is not vulnerable to netcut attack (If some other user on the wireless LAN has Netcut installed).        

8. With this wireless network monitoring tool, you can secure your wireless network.
 Another main feature of netcut is that you can change the MAC address of any connected device. Highlight the device and click Change MAC button.

                                       netcut
10. You will not be able to control the devices which have Anti- netcut (Netcut defender) installed and running.

How Netcut Works:

NetCut makes use of a ARP(Adress Resolution Protocol) Spoofing technique. The attacker associate the victm's ip address with his own mac address, so that all the traffic which is meant for victom PC flow to Hacker's system. As a result, the victim's PC loose Internet Connectivity.Unfortunately, ARP is a stateless protocol. This means we continue to accept ARP replies and overwrite the old ones, even they have not expired yet. Worse, ARP does not define any authentication method to check whether the replies come from the trusted one.

Ballloon : Save Web Files to Cloud Services with Single Click

Cloud Computing is the new way to store and share your files over the Internet. In very short time, cloud storage becomes one of the main storage platform for saving web files like images, videos, links, pdf documents etc. At present, people (including me) who need to save web files to cloud storage, first download them to their local storage and then upload them to the cloud storage providers like Goggle drive, box, DropBox, One drive, etc. In this post I am sharing a new method to save the web files to cloud that can completely change the way people use the cloud.

Actually, there is a chrome Extension called Ballloon(Yea, there are three L’s) that simplifies the process of saving files to cloud. When you will visit a web page and hover the mouse over the image, icons of cloud services will show up. Clicking on your desired cloud platform will connect to your cloud service provider for authorization (first time only) and then you can save images to cloud with a single click. You also need to specify the folder on your cloud in which you want to save the images. 


Save Images to goggle drive

Ballloon- save files to cloud

Another good feature is that Ballloon offers you a history page, from where you can find out all the things you've saved. 

                                  Balllon chrome extension

In order to save the links to cloud storage, just right click on the link you want to save, select Save link to and choose your cloud service provider.

          save files to cloud services

         save files to google drive

I found Ballloon the quickest and easiest way to save web files. Specially, it can be very useful for bookmarking your favorite links. Sometimes you see something very cool on the web, but do not have time to look at it. Just save the link to cloud so that you can easily find it later on. This surely increases productivity.

By setting Yo notification options, you can get notifications on your mobile device when a file is saved to cloud successfully, when Ballloon updates available or when a file larger than 1GB is saved successfully.You can Visit their official site to know more. In order to install the extension for chrome visit the Extension page in store.


Ballloon-save files online

Saving files directly to the cloud can completely change the meaning of the cloud. The only limitation of this extension is its availability only for Chrome users. I use this awesome extension to save images and links to the Google drive and it works as they promised. It saves lot of your time and effort.It supports all the major cloud service providers like Google drive, Dropbox, Onedrive, Box, Copy and sugarsync. I must say, it worth a try. Install it and share your experience with me.

Listen to PDF files : Adobe Reader can read a pdf for you

We all use Adobe Reader to read our eBooks, online books and documents. There are other free software packages available to read pdf files, but Adobe Reader is the most widely used among them.

Do you know Adobe Reader can read a PDF file for you? Adobe Reader can read Pdf document for you while you are reading it. There is no need of additional text reading software. Adobe reader has in built feature called Read out Loud which enables you to listen the pdf document. 


free text reading software

How to enable Read Out Loud Feature

In order to listen the pdf files with adobe reader, follow these steps:

1. Open your pdf file in the adobe reader. If you do not have adobe reader installed on your system, download it now from adobe’s official site.

2. In the menu bar, click on View, Look for the option “Read out Loud” and click “Activate Read out Loud”.

Read out loud - books to read out loud

3. If your document is compatible with adobe’s text to speech system, Read out Loud feature will be activated. If not, it will speak - Warning…. Empty page.

4. If you did not hear any warning message, then again go to View > Read Out Loud and select “Read this page only”. Adobe reader will start reading the current page line by line. If you select “Read to end of document”, it will read from the current page up to the end of page.

read text out loud online

5. I try this with simple documents as well as some magazines and it works quite fine. Accuracy of text to speech conversion is very high and speech quality is also good.


6. For now, only English language is supported, so your pdf must be in English language.

7. Unfortunately, there is not much play/pause and stop functionality. Once stopped, you have to start it again by going to View > Read Out Loud. In order to stop, select "Deactivate Read out Loud". It also stops reading the page when you minimize the reader window.


The language support is limited and reading control is very basic, but still it is far better than many free text reading softwares. Do not search for any text reading software on the Internet and use this inbuilt functionality of Adobe reader. You can read as well as listen your favorite eBooks and magazines. Obviously, this can increase your understanding and memorizing power.

If you did not know this awesome feature of adobe reader, share it so that more people can make use of it.

Add AdSense ads in the middle of Blogger posts to maximize revenue

If you use Google AdSense for monetizing your blogger blog, then you must heard of hotspots. Hotspots are the areas which yield the maximum number of clicks and hence the maximum revenue. In order to generate maximum revenue from your blog, you must place an ad below the post title. The second best place to display AdSense ad is middle of the post. I am not talking about displaying AdSense ads between posts, which you can achieve by going to layout, edit the blog post and selecting show ads between posts. Instead I am emphasizing on placing the ads between the content of the post.

adsense alternatives

Displaying the ads in the middle of the posts has increased my AdSense revenue almost by 50%. In this post, I am going to demonstrate how you can advertise AdSense ads anywhere inside your post. One thing I want to tell you before beginning the tutorial- If you want to place ads in the middle of posts, you have to add the AdSense ad code manually in between your post at the time of writing. This is not much difficult as it appear. Just save code in a notepad file and paste it every time you write a new post.

1. Go to your AdSense Account and get the code of ad which you want to display in the middle of post. I recommend you to place either 300*250 or 336*280 ads between the posts. But you can choose any size depending upon the design of your template. Paste the code on notepad. 

internet adsense ads

2. After you completed writing your post, decide where you want to place your ad. If you are already showing an ad just below post title, make sure you show another ad after appropriate margin.

3. It is good to align your ad to the center of available width. So we are going to add a div.




Place your ad code within this div. So your final code will look something like the image below. 


google advertising

4. Next, go to blogger post and click on HTML to switch to HTML View. Just locate the line below which you want to display ad. If you are facing problem in locating the position, copy some text from Compose view and search it in HTML view (By pressing Ctrl+F). This will 
immediately locate the line of text you are looking for. 

pay per click advertising

free online advertising

5. Once located, copy the code from notepad (with div) and paste it at your desired location. Click on the preview button in order to preview the alignment of ad with respect to your post content. 


online ads

online advertising

6. In the div I added width:50% property in order to place the ad in center. If you omit this, you will see your ad in the left side.

7. Save the notepad file and every time you write a new post add this code manually in your post. 

If you face any problem in placing AdSense ads at your desire location, let me know in comment section. I will try to reply ASAP. Happy Blogging.
I also created a video for this tutorial. So if you stuck at any point, watch the video as I covered the same steps in the video below.

Read your Emails as soon as they arrive: Enable Gmail notifications on your desktop

I don’t check my Gmail that often, so sometimes I missed some important mails. Also there are some emails that contain timely information and you cannot afford to read them later on. You can easily see and access new emails you receive in Gmail inbox directly on your desktop without going to your Gmail account. For this, you have to enable desktop notifications for Gmail.

                            Gmail Desktop notifications

1. Go to Gmail and sign in into your account.

2. Click on the Gear icon and from the drop-down select Settings.


enable gmail desktop notifications

3. In the General tab scroll down to Desktop Notifications. Click the 'Click here to enable desktop notifications for Gmail'. Browser will ask your permission to Allow Desktop notifications for Gmail. Select Allow



enable gmail desktop notifications

how to enable gmail desktop notifications

4. Select Chat notifications on and New mail notifications on. You can also choose the option Important mail notifications on. This will show desktop notifications only for important emails.


                                    enable gmail desktop notifications chrome


5. Navigate to bottom and click Save Changes button. Your changes will be saved only if you click this button.


desktop mail notification

6. You’ll be now be able to see and access any new mail as soon as it arrives from the bottom right corner of your desktop.

So even Gmail is not opened in your browser, you will be able to see all the new emails and if it looks important, you can click it to view the full email in your browser.

If you want to turn of the desktop notifications, go back to settings, unselect Chat notifications on and New mail notifications on and save changes.


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If you are not able to see mail notifications, click on the Chrome notifications icon on the taskbar, Select settings(gear icon) and make sure that Gmail has been marked to show notifications. 

                                 email desktop notification

desktop notifications

Note: Please note that in order to see desktop notifications for Gmail, you must have chrome browser opened.

Top sites to send text messages from computer for free

Is your mobile carrier charging you high amount for your text message plan? Are you hang around your computer all the day and don't have much time to look at your mobile? Or maybe you just want to save some bucks that you spend on text message service/plan. The simple solution of all these is to use online text message services. There are huge number of websites sites which provide online SMS Service. Each of them has some pros and cons like region availability, limit on number of characters, advertisement, sign up requirement, etc. I evaluate many of them and based on my personal experience I am going to share some of them with you.

send free text messages in computer

Sending SMS from your computer is very simple process. You just need to visit the SMS service provider’s site, fill in the details like recipient’s mobile number and text message and click on the send Button. Here are some top sites to send text messages from your PC.



send text online - sendsmsnow

This site is on top of the list because of its availability in many countries and simple to navigate interface. You need to register an account with SendSMSNow in order to user their services. The good thing about this site is you can also receive replies in your inbox. Addition to this, you can manage your Phonebook and groups. And no need to mention here again, it’s all for free. Using this online texting service you can send SMS messages in many countries like USA, Canada, Germany, India and many more. This website allows you to send unlimited messages and also tracks history of sent messages. The word limit is 130 characters which is more than other free services offer.


send messages free - onlinetextmessage

In order to send a text message from this site, you do not need even a mobile number. You can enter your email ID and response from your recipient will be delivered to your entered Email. Many carriers in all the major countries are supported by this service.


send messages from computer yakedi

If you are living in Australia, then Yekedi is the service you would love to use for sending SMS from your computer. But you need to Sign up first before using their service. They are able to provide free SMS services with the help of advertisements. So the recipient of your message may see your message with advertisement. The main downside of Yakedi is it is only limited to Australia.


send text online - textem

An USA based SMS messaging service which supports almost every USA carrier. You just need to enter recipient's mobile number, your Email ID and the text message that you want to send. It supports maximum length of 155 characters. Text’ em is restricted only for USA users.

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online text gateway txtdrop

Another online texting service which enable users in the United States and Canada to send text messages with instant delivery. Here, you need to enter your email (for receiving reply), recipient’s mobile number and your message. The User interface of this site is very simple and easy to use.



way2sms send messages free

This site claims message delivery time of 10 seconds. You need to register yourself by providing your mobile number. The registration process is very simple and user friendly. It offers you contact management and Email alerts options. The restriction of this awesome site is that you can send messages within India only.


SMSCity send messages

From SMSCity, you can send international SMS daily for free. Besides sending SMS, SMScity allows you to make phone calls via your PC from 1 cent per minute. The only thing you need is a microphone. It allows you to send free SMS messages in more than 20 countries.

So, next time you ran out of your Balance or your Text message plan is over, you do not need to worry. Just head over to any of the above sites and send free text messages all over the world.

What are other services to send text messages from computer? What service do you use? Share them with us in comments. Happy texting.