Linux Security
    Linux Security
    Linux Security

    Filtering tcpdump: Creating order from chaos

    Date 01 Sep 2020
    Posted By Brittany Day
    Pexels Ketut Subiyanto 4349776 Cropped

    Learn to use tcpdump's filtering capability to make it easier to make sense of your network data in this quick, informative tutorial.


    In my last article, Troubleshooting with tcpdump, I looked at the tcpdump tool, some basic use cases, and walked through a mock-up of a real-world scenario. Now, I want to dig a bit further. Everyone who uses this tool in a real situation immediately notices how much information (I believe they call this "verbose"...) is presented to the user. One of the best things you can do for yourself is figure out a practical way to filter for the information you need. Let's look at some ways that you can do this.

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