Regularly checks Wireless LAN vulnerabilities to ensure Network Security

Source: Internet
Author: User

Network security is a never-ending task that requires continuous vigilance. Protecting your wireless network is a particularly tricky task, because unauthorized users are invisible and can sneak into your network without being discovered. To make your wireless LAN more secure, it is important to discover and fix new wireless vulnerabilities. You can identify and fix new security vulnerabilities by conducting regular wireless network security performance evaluations. Before that, hackers can penetrate into your network through these security vulnerabilities.

To evaluate the vulnerability of WLAN, you need to find out what makes your wireless network accessible to the outside world. Is there a simple way to connect to your network? Can an unauthorized device simply add itself to your network? Wireless Security Vulnerability Assessment can answer these questions.

1.Discover wireless devices on the network. You need to know which wireless devices have access to your network, including wireless routers and wireless access points AP) as well as laptops and all other mobile devices. The scanning device will be in the 802.11a/B/g/n wireless network in the 2.4GHz and 5GHz frequencies. Record wireless devices on your network, including the location of each device and related device information.

2.Hunt down rogue devices. For example, if the Wireless Access Point AP is illegally installed, it should not be installed on your network. The illegal access point AP does not exist in your network device list, but it causes illegal Wireless broadcast of the internal network. Considering that this may cause leakage of your network information, you need to immediately process and immediately block its network access function. Vulnerability Scanning also scans any wireless frequency bands in the office area, including wireless channels that you do not frequently use, to detect new illegal wireless access points.

3.Test the authorized access point. Ensure that the wireless access point on the network is your device and can be accessed securely. Because anyone can access your network wirelessly through the AP, it must have the latest security patches and firmware upgrades. Make sure that you have modified the default password, which is a powerful and hard-to-crack "Administrator" password. In addition, check that WAP configuration is the safest option, such as the strongest Authentication Settings and signal encryption management, use filters to block unauthorized protocols, and issue security alerts.

4.Regularly update your network device list. Find new devices in the network. For example, if you bring any new devices that support wireless functions from home, they are accessing your wireless LAN. Update your device inventory library to ensure that each new smartphone, tablet, laptop, desktop, over IP voice VoIP) phone, and any other wireless device, they must be approved to access your network.

5.Take action to eliminate security vulnerabilities. The last step is to block the vulnerability detected by the vulnerability scan. For example, a new wireless access point installed in your network, a new security patch for your device, a custom change to the network password, and a system patch can make them more secure.

Of course, completing these five steps does not mean that your security check has been completed. You should test whether the repair is completed correctly to ensure that the security vulnerability is indeed disabled. You can also customize the next WLAN Security Vulnerability Assessment Plan to regularly check new security vulnerabilities in your wireless network. These five steps will help ensure the security of your wireless network.

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