Information gathering is the first step in the network troubleshooting methodology, which is similar to many other processes in the IT world, including the process of handling a security incident. Information gathering is also called the reconnaissance phase and it aims to obtain as quickly as possible all the relevant information that will assist you during the next phases.
The event that generated the information gathering phase is a network issue that was most likely reported by an end-user who discovered it or who was directly affected by the issue. The end-user could have reported this via e . . .
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