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To set this up, you can follow our Initial Server Setup with Ubuntu 20.04 tutorial.

One Ubuntu 20.04 server with 2 or more CPUs, a sudo non-root user, and a firewall enabled.

If you plan to use Suricata to protect the server that it is running on, you will need: From there you can scale up resources according to Suricata’s performance and the amount of traffic that you need to process. In a production environment plan to use at least 2 CPUs and 4 or 8GB of RAM to start with. Generally, the more traffic you plan to inspect the more resources you should allocate to Suricata.

Prerequisitesĭepending on your network configuration and how you intend to use Suricata, you may need more or less CPU and RAM for your server. Finally you’ll learn how to test whether Suricata is working correctly when it detects suspicious requests and data in a response. You will also learn how to download existing sets of signatures (usually referred to as rulesets) that Suricata uses to scan network traffic. In this tutorial you will learn how to install Suricata, and how to customize some of its default settings on Ubuntu 20.04 to suit your needs.

You can deploy Suricata on a gateway host in a network to scan all incoming and outgoing network traffic from other systems, or you can run it locally on individual machines in either mode. It can also be configured as an active Intrusion Prevention System (IPS) to log, alert, and completely block network traffic that matches specific rules. It will generate and log alerts for further investigation. Suricata can generate log events, trigger alerts, and drop traffic when it detects suspicious packets or requests to any number of different services running on a server.īy default Suricata works as a passive Intrusion Detection System (IDS) to scan for suspicious traffic on a server or network. Suricata is a Network Security Monitoring (NSM) tool that uses sets of community created and user defined signatures (also referred to as rules) to examine and process network traffic.