Wi-Fi How to prevent cracking wireless router method

One, the reason that the wireless network is rubbed net

1 , wireless key is compromised

In the "Free WiFi" hype, more and more people do not live "free lunch" the temptation to join the "rub net" ranks. At the same time, many people also found that their wireless network is "rubbed net", suspected wireless routers are WiFi universal key software cracked. As everyone knows, "Wei from the internal cause." The following is a detailed illustration of the process by which the wireless key is compromised.

When a mobile phone with a web-screen software is connected to its own wireless network, the Web software will automatically or manually upload the name and password of the wireless network to its server. When someone else uses a mobile phone that has the Internet software installed to search for this wireless signal, they can get the password to the wireless network, thereby achieving the goal of rubbing the net.

In other words, your "lunch" is likely to be shared by others when you use the Web software to enjoy a "free lunch".

2 , wireless network is not encrypted

We compare the wireless network to a home, then the name of the wireless network is a door, the password of the wireless network is a lock of this door. If there is no lock, other people just find the door, they can walk in and out of the house, and even take home things. An unencrypted wireless network is also known as an open wireless network, and a wireless device that is found on the signal can see that the network is unencrypted and will try to "rub the net".

3 , wireless networks are cracked

Cracked wireless network generally using the method of brute force to crack, theoretically speaking, as long as there is enough time, there is no crack password.

A wireless password with WEP encryption is equivalent to a lock on a-level lock (which is already removed by the general router), low anti-theft coefficient, can only withstand a few minutes, while WPA/WPA2 is a Super B-class lock core, high anti-theft coefficient, if the password settings are more complex, under normal circumstances will not be cracked.

Second, the harm caused by rubbing nets

1 , affect network stability

The total bandwidth of the home network is like a piece of cake, if someone else to divide the cake, the rest may not be enough to eat. If the net users use the network peer-to-peer download or watch online video and other large flow operations, will occupy a large number of bandwidth, resulting in network cards, slow or even off the line, let people use the crazy.

2 , threats to network security

Their security door key was in the pockets of others, the home of things may be quietly taken away. Rub the net to connect your wireless network, and you are in the same LAN that can access each other. He can go into the router management interface tampering router configuration information, can also access the same local network of any computer, steal the computer files or even network account information, bring serious consequences.

Third, the method of judging the wireless to be rubbed net

The most straightforward way to determine this is to look at the number of hosts currently connected to the wireless network displayed by the router management interface. First, login to the router's admin interface (the router's default administrative address is 192.168.1.1 or melogin.cn), click Wireless Settings >> Wireless host status to view the number of hosts currently connected, As shown in the following figure.

For example: In the use environment, you are sure that only 1 wireless terminals connected to the wireless network, but the wireless host status shows that the current number of hosts 2, it means that your wireless network has been rubbed network.

Iv. methods of preventing the net from being rubbed

1 , set up a wireless network

[1] Set up wireless encryption. Login to the management interface of the router, click Wireless Settings >> Wireless security Settings , select the encryption method:Wpa-psk/wpa2-psk, Setting a password is recommended as a combination of letters, numbers, and symbols with a length of not less than 12 digits.

[2] Set up wireless MAC address filtering. If you use a network of terminals that are basically fixed and do not often have someone else access to the wireless network, it is recommended that wireless MAC address filtering be enabled, allowing only the devices of all family members to be plugged in. Set up method: Login to the management interface of the router, click Wireless Settings >> wireless mac address filter , add the wireless terminal MAC address in the use environment to the Allow list , and enable the rule:

[3] Hide the wireless signal name. If you use a network of terminals basically fixed, not often have other people access to the wireless network, it is recommended to hide the router's wireless signal name, other not connected to this signal terminal can not search this signal. Setup method: Log on to the router interface, click on Wireless Settings >> Basic Settings , do not tick open SSID broadcast , click Save .

2 , carefully use "rub net Software"

The harm of a mobile phone installed with "Rub net Software":

The first pit of their own wireless network, confusedly to share to the surrounding people, and then in the company wireless, the company to share the wireless network, travel to live hotels, shopping malls, to friends home Go where the pit is.

Even if your phone doesn't have a Wi-Fi key, it's a secret that your wireless network has been secretly shared by a friend who came to your home on the phone someday. Can often change the wireless password regularly, to prevent rubbing nets.

"Rub network software" can achieve "free WiFi", but also has a huge security concerns, you do not know who is in the same LAN as you, just like you do not know what kind of people stay in the same room. Free though good, and rub and treasure.