How to Secure a Wireless Network from Hackers

he reason we secure a wireless network is to stop people from using the services of our network who don't have permission to utilize them. It is harder to secure a wireless network from hackers as compared to a classic wired network. This is due to the fact that a wireless network can be accessed anywhere inside the range of its antenna.

In order to secure a wireless network from hackers, we should take proper steps to save ourselves against security issues. If you don't secure a wireless network from hackers, you might end up without its service. The consequence might also include the utilization of our network to attack further networks. To secure a wireless network from hackers, you should follow these simple wireless networking tips:

1.       Strategic antenna placement:

The first thing you have to do is to position the access point's antenna in a place which restricts the range of its signal to go further than the required area. You should not put the antenna close to a window because glass can't obstruct its signals. Place it in a central location of the building.

 Use WEP:

WEP stands for Wireless encryption protocol.  It's a customary technique for encrypting traffic on a wireless network. You should never skip it as that will allow hackers to get instant access to the traffic over a wireless network.

3.       Change the SSID, disable the broadcast of SSID:

SSID stands for service set identifier.  It is the recognition thread utilized by the wireless access point due to which the customers are capable of starting connections. For every wireless access point arranged, select an exclusive as well as unique SSID. Also, if it's attainable, hold back the broadcast of the SSID out over the antenna. It won\t appear in the listing of offered networks, while being able to provide services as usual.

4.       Disable DHCP:

By doing this, the hackers will have to decode the TCP/IP parameters, subnet mask as well as the IP address in order to hack your wireless network.

5.       Disable or modify SNMP settings:

Change the private as well as public community settings of SNMP. You can also just disable it. Otherwise the hackers will be able to utilize SNMP to get significant info regarding your wireless network.

6.       Utilize access lists:

             For additional security of your wireless network, and if your access point support this feature, employ an access list. An access list lets us determine precisely which machinery is permitted to attach to an access point. The access points which include the access list can employ trivial file transfer protocol (TFTP) now and then in order to download modernized lists to steer clear of hackers.




Source BY : www.computerfreetips.com

How to display the hidden settings of iPhone handsets

Today tip will help you to play with your iPhone mobile phones using secrets codes. These secret codes will work on most of the Apple mobile handsets. You can display the hidden information of Apple handsets and troubleshoot the routine problems with the help of these codes.

  Follow the list of latest Apple codes list: 

Code                                        Action 

*#06#                             To display the IMEI Number of the mobile  

*225#                           Use to display the balance detail of postpaid number    

*#43#                                           Use to verify if call waiting is enabled

*#61#                                           Verify the number for unanswered calls

*#62#                                           Verify the number for call forwarding if no service is available.

*#67#                                           Verify the number for call forwarding if phone is busy

*#646#                          Use to display the minute detail of postpaid number

*777#                                             Use to display the balance detail of prepaid number    

*3001#12345#*                         Display the iphone inner settings

*#33#                                           To verify whether barring is enabled or disabled for outgoing

*#21#                                           To display the settings for your call forwarding

 

How to disable enable the usage of USB storage devices

USB drives (also known as flash drive, mobile disk or pen drive) are becoming the most popular standard in these days to store and move data. USB support is available in PCs of both IBM-compatible and Apple computers. USB port support hot plugging and plug & play. The USB allows up to 127 devices to be connected to the bus via a single port. The driver name "usbstor.sys" is used to communicate any USB drives to the operating system.

 

USB drives are indeed very useful in these days but a user can easily use to transfer any confidential information from your computer to others and can also upload viruses affected files to your computer by accidentally or deliberately. But you can prevent the users to connect any USB drives in the computer by disabling the ability of "usbstor.sys" (USB driver) to load in system. It will block the USB storage devices only and your system USB keyboard, mouse and others USB devices will work properly. 

Perform the following steps to block the USB storage devices: 

• To edit this feature, you will need to be logged into your computer with administrative rights.
  
  
  • First click on Start button to open "Run" and type "regedit" then press Ok button to open the Registry Editor.
  
  
  
  
  In registry editor locate the given path: 
  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR
  
  
  
  
  
  Here select the "USBSTOR" folder and in right side of the registry editor panel find the value with name "Start".
  
  
  
  
  
  Double click on "Start" and then set its value 4 under "Value data" section.
  
  
  
  
  
  
  
  Close the Registry editor and restart your computer for changes to apply.
  
  
  Now when you want to restore the default setting, open the Registry Editor and set its value back to 3.
  
  
  
  
  
  
  
  Now again close the Registry editor and restart your computer for changes to apply.
  
  
  
  
  source By : www.computeronlinetips.com
  
  
  
  

How to quickly repair your Mobile Phone dropped in water

Many of you get your mobile phone wet by one way or another. You worry as you mistakenly drop your mobile phone in water. It can also get wet if you are out in a heavy rain.  However, there is no need to panic. It is possible to save your wet mobile phone by quickly repairing it. In order to save your mobile phone from water damage, you can consider these easy and simple solutions: 

Act rapidly : 

The first thing you have to do in order to save your wet mobile phone is to act rapidly. Quickly remove all the detachable parts as well as covers possible such as the back cover, battery, the SIM card, memory card etc. Next, take a piece of cloth or a tissue paper to wipe the excess water you are able to notice within the mobile phone. Make sure that you dry it completely. If you don' t do this, the water inside the mobile phone will begin to evaporate and gather in places which will be difficult to reach. 

This will save your wet mobile phone and it will start working if it was under water for just a little while.

Using a hairdryer :
Take a hairdryer and begin drying the mobile phone while giving more consideration to the place where the battery is located. The battery housing usually consists of tiny holes to let in air (so giving more space for water) inside the mobile phone.
Make sure that you are not holding the hairdryer very near to the mobile phone. Keeping it too close to the mobile phone may harm the electrical mechanism of the mobile phone. Keep on drying the mobile phone from a safe distance for about twenty to thirty minutes.

If solution number 1 and solution number 2 don't work, try solution number 3. 

Drying for a long time: 
 Take off the covers as well as battery from the mobile phone. Put the phone in a dry as well as warm place to let the water inside the phone evaporate gradually from the little holes in the mobile phone.

How to create a shortcut for locking the Computer Screen in Windows 7

There are many ways in which you can lock the computer screen. The most popular as well as the fastest way to lock it is to use a keyboard shortcut. The keyboard shortcut used to lock the computer screen is Win+L. A few of us choose to utilize the mouse to lock it. And of course many people like to use both the options.

There is another method in which we can lock the computer screen. It is to create a shortcut for locking the computer screen in Windows 7. You can create a shortcut for locking the computer screen in Windows 7, XP and Vista too. Follow these steps in order to create a shortcut for locking the computer screen in Windows 7 as well as other editions:

Right-click on the desktop where you would like to create the shortcut.
Point to New.


Click on Shortcut from the menu.


Type in this text in the shortcut textbox. (This text will work for Windows XP as well even though the screen will be different) 


rundll32.exe user32.dll, LockWorkStation



Click on the Next button.

Type in a name for your shortcut.
Click on the Finish button.  
You have successfully created a shortcut to lock your workstation. Just click on the shortcut whenever you want to lock the computer screen.


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How to make Word 2007 always save in 2003 format?

Not everyone has updated to the 2007 edition of Microsoft Office. So a problem arises as we send them a Word 2007 document without converting it into 2003 format. However, it is possible to make Word 2007 always save in 2003 format. By changing a few settings, we can make Word 2007 always save in 2003 format automatically. This can save our time as we won’t have to convert a document each time we have to send one. Follow these steps to make Word 2007 always save in 2003 format:

1.     Open Word 2007.

2.     Click on the Office button.

 

3.     Click on the Word Options button at the bottom.

 

4.     The Word Options dialog box will appear. 

5.     Select the Save tab.

 

6.     Select “Word 97-2003 Document” from the menu of “Save files in this format”.  

 

7.     Click on the OK button.

After this you will never have to worry about mistakenly sending the incorrect format of Microsoft Word 2007 to anyone. The same procedure can be used to change the settings of Microsoft Excel 2007.  

source by : www.computerfreetips.com/

QuickTip-How to format a Word document to remove all hyperlinks

It is not so easy to remove hyperlinks in a word document which you have created by copying the contents from a website. If you don’t know the real trick you will have to go to every single hyperlink on the document and manually remove them. Instead of that till now I have been doing another trick by pasting the content copied from the HTML page to a notepad and then again copy it from the notepad to a word document. By doing that it’s indeed removing the hyperlinks but you are also losing the complete formatting (Text formatting is so important otherwise you will have to format the text again).

So here is a simple word trick to remove all the Hyperlinks from a word document using a shortcut key.
How to do this trick?

Select the complete content on the word documents by pressing CTRL+A keys and then pressCTRL+SHIFT+F9 key will remove the complete hyperlinks found on that particular document.

Easy right? By knowing this simple trick can save your lot of time.

Let us know if it was helpful.

Link By : http://www.hackstacks.com

Outlook opens very slowly

This is often caused by a corrupt OST file (cache). The quickest fix is to create a new profile:
Control Panel > Mail > Show Profiles > Add
If this solves the problem, then set the new profile as default.

Archive folders will have to be added to the new profile in Outlook:
File > Data File Management > Add

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The security log on this system is full. Only administrators can log on to fix the problem.

In XP or in Windows Server 2003 when a user who is not a member of the Administrator Group tries to login, they receive this error message: The security log on this system is full. Only administrators can log on to fix the problem.

To solve this problem:

1. Login to the local machine as the Administrator or as a user who is a member of the Administrator Group.
2. START > CONTROL PANEL > ADMINISTRATIVE TOOLS > EVENT MANAGER
   (To see ADMINISTRATIVE TOOLS, you might need to click on SWITCH TO CLASSIC VIEW in the upper left of CONTROL PANEL.)
3. In the left pane, right click on SECURITY and then select CLEAR ALL EVENTS.
   (SAVE only if you want a copy of the logs.)

To prevent the problem from happening :

1. In the left paneof EVENT VIEWER, right click on SECURITY and then select PROPERTIES.
2. Change WHEN MAXIMUM LOG SIZE IS REACHED to OVERWRITE EVENTS AS NEEDED.