Integrating Pi-hole Logs in ELK with Logstash
I wanted to parse and ingest my Pi-hole DNS logs for a while now in Elasticsearch to be able to analyze them in various ways. I wrote four separate Grok parser for Logstash to send the logs to a ELK stack. I am now able to view and analyze which domains have been Sinkhole by gravity.list or regex.list (custom wildcard lists) and create the necessary dashboards to report on the DNS traffic. This is an example of the output in Discover. In this example, I have filtered out the dns_type: forwarded.
The configuration file can be downloaded here.
[1] https://pi-hole.net/
[2] https://handlers.sans.edu/gbruneau/elk/pihole.conf
[3] https://www.elastic.co/
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Guy Bruneau IPSS Inc.
My Handler Page
Twitter: GuyBruneau
gbruneau at isc dot sans dot edu
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Nov 17th 2022
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<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
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