These sensitive data must be protected from hostile attacks, which resulted in establishing these so-called sniffer programs that allow tracking and analyzing the data flow in order to find possible error sources and discrepancies. When it concerns advancing industrial companies, own developments are often necessary, and their creation is usually documented on one or more computers. In places where multifaceted systems and technology are used, in addition to the level flow of processes and steps, the characteristic of system and network security is the importance of attention. All the necessary components for monitoring, analysing and documenting the network traffic are present.It is open source with a large community of backers and developers.It offers network monitoring on almost all types of network standards (ethernet, wlan, Bluetooth etc).It has a great GUI as well as a conventional CLI(T Shark).There are many reasons why Wireshark is so popular :
The extent of its popularity is such, that experience with Wireshark is considered as a valuable/essential trait in a computer networking related professional. Wireshark is loved equally by system administrators, network engineers, network enthusiasts, network security professionals and black hat hackers. It is the most widely used network monitoring tool today. Wireshark is a software tool used to monitor the network traffic through a network interface. Wireshark is available for free, is open source, and is one of the best packet analyzers available today. However, with the advent of Wireshark, that has changed. In the past, such tools were either very expensive, proprietary, or both. You could think of a network packet analyzer as a measuring device for examining what’s happening inside a network cable, just like an electrician uses a voltmeter for examining what’s happening inside an electric cable. A network packet analyzer offers taken packet data in as much detail.
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