I didn't realize firewalls aren't turned on by default in linux and I've had it off for months, how screwed am I?

This page summarizes the projects mentioned and recommended in the original post on /r/linux4noobs

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  • opensnitch

    OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

  • Close to zero most probably. If you want something different, to block/monitor what applications access the internet, block ads, etc, try https://github.com/evilsocket/opensnitch

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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