What are the methods for wireless network security?

Nowadays, everyone generally uses laptops, so the wired network is not so popular. On the contrary, wireless networks have become a must, but wireless networks have security risks. Is it good to protect it? In the previous tutorial, we have talked about some setup techniques for wireless networks. If you think that it will only be set up, then you are all wrong, because you still need to consider wireless security issues because he is Exposed, people around the effective range are acceptable. Today, I want to introduce you to the security of wireless networks.

Security has always been an eternal topic. With the popularity of wireless networks, the security of wireless networks is more prominent. Because wireless networks do not require physical connection to the wired network compared to wired networks, they are more susceptible to intrusion by connecting entirely with wireless electromagnetic waves. The system home secretly tells you: As long as we pay attention to the following items when using the wireless network, we can also ensure the security of the network.

1. Disabling SSID Broadcasting

Enabling SSID broadcast will help the wireless network client to automatically receive the SSID number without knowing the SSID setting of the wireless router. But for home users or friends with fixed users, there is absolutely no need to enable SSID broadcasts, because it is easy to establish connections for some unknown intruders. As an environment with a fixed user client, we can tell them the SSID identifiers and let them manually enter them directly to establish a connection.

2, set the key

For wireless settings, generally require us to perform security authentication settings. In this regard, although the key is set, it will increase the operational complexity of the use of the wireless client, but this is still very important compared to security.

3, filter settings

The general wireless broadband router will have filtering settings. Filtering generally includes two types of IP address filtering and MAC address filtering. The IP address filtering setting is relatively complicated. Generally, the operation window for creating a filtering rule is opened by clicking the button of “Add new item”, and then setting the IP address of the operation. For example, we can use the IP address that is allowed to be used. Add it in and set it to “Allow access", so that the IP address that has not been added cannot be connected; for the same reason, if you want more advanced security, you can allow access in MAC address filtering. The MAC address of the wireless client NIC is added and set to allow access.

4, the default settings can not be used

Since one of the most important devices in the wireless network is a wireless router or repeater. Generally speaking, the wireless access addresses of the same brand are the same, such as 192.168.1.1, etc., and the user names and passwords of the same brand are mostly admin; the SSID identifiers are also the same. If you do not modify these default settings, then the intruder can easily find these devices through the scanning tool and enter the management interface to gain control of the device. Therefore, modifying the default settings is one of the most basic security measures. This is not only useful for wireless network devices, but also for other ADSL, routing, etc. sharing the Internet.