Secure a Wireless Network from Hackers

The 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.

Shortcut function keys in excel

Here is a list of shortcut keys in Microsoft Excel.

1. F1: Opens a help task pane


2. F1 + Ctrl: Opens or closes the help window


3. F2: To edit the text in the active cell


4. F2 + Shift: To write a comment in the active cell


5. F2 + Alt: Opens the save as dialog box


6. F3 + Shift: opens the insert dialog box


7. F3 + Ctrl: Opens the define name dialog box


8. F3 + Shift + Ctrl:  Opens the create name dialog box


9. F4:  To redo the last command


10. F4 + Ctrl: To close the workbook window


11. F4 + Alt: To close the excel program


12. F5: Opens the Goto dialog box


13. F5 + Ctrl: brings back to the first level of workbook


14. F6: To shift between help taskbar and the excel window


15. F6 + Shift: To goto the previous square in the open worksheet


16. F6 + Ctrl: If more than one workbook is open to switch between them


17. F7: To open spelling correction window


18. F7 + Ctrl: When workbook window is not maximised it will move the window


19. F8: To activate / deactivate extended mode


20. F9: Will calculate all the worksheets in all open workbooks


21. F9 + Shift: Will calculate the active worksheet


22. F9 + Ctrl: To Minimise the workbook window


23. F10: Will select the menu bar


24. F10 + Ctrl: To open minimised window


25. F11: Will create a chart using the current range


26. F11 + Shift: To select a new worksheet


27. F11 + Alt: To switch between visual basic editor and the worksheet


28. F11 + Alt + Shift: Opens microsoft script editor


29. F12: Opens save as dialog box


30. F12 + Shift: Saves the active workbook


31. F12 + Ctrl: To open the Open dialog box


32. F12 + Ctrl + Shift: Opens the print dialog box

Convert older Office documents to Office 2007 format

The Office 2007 applications such as Word and Excel can open a spreadsheet or a document which is in an older edition of Office.  They can open such older version documents in Compatibility Mode. However, if you need to make use of various newer features available in Office 2007, you will have to convert older Office documents to Office 2007 format. The feature to covert older Office documents to Office 2007 format is very useful. For example, you can now utilize 1.1 million rows in the 2007 version of Excel. In the older versions you could only use sixty-five thousand rows.  The method to convert older Office documents to Office 2007 format is the same for all applications. Here we are using the example of a Word document of previous version. If you open a Word or Excel document of an older version, you see [Compatibility Mode] as part of the title.

Follow these steps to convert older Office documents to Office 2007 format:

Open the Word document which you want to convert into Word 2007 format.

 

Click on the Microsoft Office button on the top left.

 

Click on Convert on the left hand side of the menu.



 

 

 

 

 

 

 

 

 

 

Click on the OK button on the Microsoft Word Office dialog box which appears.

By clicking on the OK button, the document will be automatically converted into the Word 2007 format. You will notice that now the window does not show [Compatibility Mode] as part of the title bar any longer.