Installing Snort on CentOS 7

Snort is an open-source network intrusion detection and prevention system (IDS/IPS) designed to detect and alert on network traffic anomalies, malicious activity, and potential security threats. It can analyze network packets in real-time and has a vast collection of pre-defined rulesets to detect common network attacks.

To install Snort on CentOS 7, follow the steps below:

1. Update your CentOS system by running the following commands in the terminal:
   sudo yum update
sudo yum upgrade
2. Install the necessary dependencies by running the following command:
   sudo yum install epel-release
3. Install Snort by running the following command:
   sudo yum install -y snort
4. Configure Snort by editing the configuration file located at /etc/snort/snort.conf.
5. Update the rulesets by running the following command:
   sudo snort -c /etc/snort/snort.conf -A console -i eth0 --daq-dir /usr/lib/daq/ -T
6. Start the Snort service by running the following command:
   sudo systemctl start snort
7. Enable the Snort service to start on boot by running the following command:
   sudo systemctl enable snort

After completing these steps, Snort should be successfully installed and running on your CentOS 7 system. You can verify its status by running the command sudo systemctl status snort.