Archive for the ‘Online Tech’ Category

Being an innovative group in the world, the hackers are continually coming up with new ways to break through network defences. But their attacks can generally be grouped into these categories:

MAC spoofing
Hackers use MAC spoofing to impersonate a legitimate network user.
All network interface cards (NICs), like PCMCIA or PCI cards, provide a mechanism for changing their MAC addresses, issued by the manufacturer, that identify a specific device.

Denial of Service (DoS)
In a more common type of DoS attack, the hacker uses a laptop or PDA with a wireless
NIC to issue the floods of de-association frames, forcing clients to drop their association with the access point. Thus the hacker now controls access to the network.

Malicious association
The hacker configures his device to behave as a functioning access point.
When a user’s laptop or station broadcasts a probe for an AP, it encounters the hacker’s device, which responds with an association. At this point, the legitimate user’s computer can be mined for any and all information, including MAC address, SSID, pass codes, etc.

Man-in-the-middle attacks
The hacker sends a de-authorization to a network device, which drops its association to its access point and begins searching for a new access point. It finds the hacker’s station and associates with it, and allowing him to change or steal data at will.

Secure the Wireless Network:

• Adjust the default SSID.
• Use strong encryption.
• Set up mutual authentication between the client and the network.
• Use VPNs or WEP combined with MAC address control lists to secure business specific devices.
• Use uniqueness networking in combination with VLANs to restrict access to network resources.
• Make sure management ports are secured.
• Set up lightweight access points as they do not store security information locally.

Storing data over the internet is a critical aspect that facilitates the transmission of information over long distances. Storing of data has over the years helped create a global village by linking people, businesses and organizations.

Data can be stored over the internet in different ways and this may include email and email attachments, Web pages, Internet applications or a file on a desktop or notebook computer or on a mobile device. However, these methods are prone to risks and may lead to loss of data through unauthorized access or malfunction of either hardware or software.

To make sure that the data remains secure it is always advisable to use encrypting technology that only grants access to authorized recipients. This method however requires a web browser and a web server that uses HTTPS (Hypertext Transfer Protocol Secure) rather than the more common HTTP. It’s advisable that users storing sensitive data use the HTTPS model.

For a person experiencing computer problems, then online computer repair will come in handy. There are computer repair companies which provide online repairs to their clients. They have qualified and competent technicians who are available to offer service at all times and days of the year. The companies strive at all times to provide the best service to their clients as well as give advice on how to maintain the computer so that it serves you better.

They offer computer repair articles on such issues as virus detection and removal which is the major cause of computer breakdowns. You also have a chance to hold live chats with the technicians who answer the questions which you may be having.

Online computer repair is made possible through a secure link which enables the technician’s computer and your computer to connect through the internet. The technicians are thus able to know the problem and fix it.

Protection from spyware, viruses and other such things is very necessary if you want your computer to work properly. Spyware not only slows down your computer but also cause a lot of damage to the security and privacy of your files.

There are several spyware blockers that can be installed on your computer through internet for free, but it is found that these are not very effective and it is better to purchase these antispyware tools online. If you are installing real time versions of these tools, then they will block all the unwanted components from your system, keep your registry, memory and hard drives free of any problematic element, remove unused and old files from your computer and protect your privacy while you are surfing through the internet. Most of these antispyware tools are user-friendly which means that you can install and start using them without any professional help.

While purchasing these tools over the internet, you get an opportunity to compare the prices and features of different tools available in the market and choose the one that best suits your requirements and budget.