Network Traffic Monitoring
This playbook describes the steps required to set up and maintain ongoing monitoring of network traffic, with the goal of identifying and responding to potential security threats.
Step 1: Assessment
Evaluate the current network infrastructure to determine monitoring points. This includes understanding the network topology, identifying critical assets, and deciding where monitoring tools will be most effective.
Step 2: Tool Selection
Research and select appropriate monitoring tools and software. Consider factors such as compatibility with your network hardware, scalability, and the specific security threats you want to detect.
Step 3: Policy Development
Develop a formal network monitoring policy. This should outline the goals of monitoring, specify what kind of data will be collected, and describe how the data will be analyzed and stored.
Step 4: Tool Deployment
Install and configure the chosen monitoring tools at the selected points in the network. Ensure that they are set up to capture the necessary data and that they are integrated with any existing security systems.
Step 5: Baseline Establishment
Create a network behavior baseline. This involves monitoring the network under normal conditions to understand typical traffic patterns, which can later help in identifying anomalies.
Step 6: Monitoring
Begin continuous monitoring of network traffic. This includes real-time data analysis to detect suspicious activities and potential threats as they occur.
Step 7: Review Process
Implement a regular review process to analyze monitoring data, update the network baseline as necessary, and revise the monitoring policy in response to evolved threats.
Step 8: Incident Response
Develop an incident response plan. This plan should detail the steps to take when a potential security threat is detected, including escalation protocols and remediation strategies.
Step 9: Training & Awareness
Conduct training sessions for network administrators and other relevant staff. This will ensure that they understand the monitoring tools, policies, and their roles in responding to detected threats.
Step 10: Continuous Improvement
Incorporate feedback and lessons learned from monitoring activities and security incidents into ongoing improvements for the network monitoring process and tools.
General Notes
Privacy Considerations
Be aware of privacy laws and regulations that apply to the monitoring of network traffic, and ensure that your monitoring policies are compliant with these requirements.
Legal Compliance
Regularly review and update the monitoring policy to maintain compliance with legal standards and industry best practices.