by phiresky

phiresky /nmap-log-parse

Logs which devices are in your local network and draws graphs

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Logs which devices are in your local network and draws graphs




  1. Clone this repository and checkout the precompiled branch

    git clone https://github.com/phiresky/nmap-log-parse
    cd nmap-log-parse
    git checkout gh-pages
  2. Add this line to your root crontab on your raspberry pi (or other device that is always on):

    */10 * * * * nmap -sn '192.168.178.*' -oX - >> /var/www/nmap-logs/$(date -I).xml

    You can edit the root crontab by running something like

    sudo EDITOR=nano crontab -e


    with your network range and
    with the target location.

    This takes about ~10MB of storage per month.

    The above command must be put into the root crontab! Otherwise, nmap can't read mac-addresses and the output will be wrong.

  3. create a

    file in the same folder as the built
    is in (dist), overriding any of the values in the default config.

    for example:


        "logFilesPath": "/nmap/logs/",
        "staticLogFiles": ["logs/oldlogs"],
        "deviceNames": {
            "AB:CD:EF:01:23": "John's PC"


    only if you have an undated log file from an older version.

    The logFilesPath is either relative to the root dirctory of the server (if starting with /) or the built index.html file (otherwise)

  4. Wait more than an hour. Make sure the first log file (in the form 2019-06-29.xml) exists and contains XML documents.

  5. Open

    in a browser. Open it from a server (like a minimal
    python3 -m http.server
    ) instead of from the filesystem because of Cross-Domain security.


Made with React, the Dexie.js database and Highcharts.

Get the dependencies using

yarn install
, then run
yarn build
to build the JS into the /dist directory. For development, run
yarn dev
to start the dev server.

This project is written in TypeScript, which is basically JavaScript (ES6), but strongly typed. I can recommend Visual Studio Code (on linux) for IntelliSense and Refactoring support.

If you have ideas to make this better please open an issue, or even better, send a pull request.

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