WiFi network security in industry

Network security should be a priority in every company. Although in large industrial plants in which IT infrastructure maintenance departments operate, software is usually updated on a regular basis, often companies that do not have a dedicated person responsible for network security forget about it. How to effectively provide them?


Modernize or lose

The first step in achieving this goal should be regular firmware updates that increase data security. It contains corrections in the area of ​​known vulnerabilities or vulnerabilities, both software and the WiFi standard itself, minimizing the risk of intruders intercepting company know-how, personal data or information on transactions and financial settlements. How to improve this process. Automatic AP software update processes from a central controller or WiFi network management software help in this. In addition, it is worth monitoring available updates on a regular basis, e.g. via RSS notifications. In turn, when devices cease to be supported by the manufacturer, which he often informs in advance, they must be replaced with new ones,


Not always more is better

Each device has a limited number of non-overlapping channels. For example, if we deploy APs operating on the same channel too close together, they will certainly interfere with each other, which can lead to a decrease in the quality of wireless transmission or its complete jamming. In turn, spacing access points too far apart may cause that they do not cover the entire area provided with access to the WiFi network with a wireless signal.

In this case, you can see a simple analogy to the sound level during outdoor concerts, which certainly will not work in a closed club. Similarly is the wireless network, which can be compared to a loudspeaker or megaphone. When the volume level is set to a very high level, it is not enough that communication in the room will be difficult, but also the reflections of this sound from the walls will cause its distortion. For a wireless network, adequate WiFi transmission power is equally important. Often, a larger number of points with weaker transmission power and well-laid out places of installation is able to effectively increase efficiency and smoothness of operation.


The antenna is uneven

Access Points available on the market can be divided into two types: with built-in antennas and equipped with external antennas. The indicated devices differ primarily in the type of radiation. Built-in antennas are more directional, while external antennas are omni-directional. Choosing the right AP should therefore depend on the environment in which we work.