Troubleshooting Firewall Ruleset Efficiency
Question
Your company uses the Firewall Insights feature in the Google Network Intelligence Center.
You have several firewall rules applied to Compute Engine instances.
You need to evaluate the efficiency of the applied firewall ruleset.
When you bring up the Firewall Insights page in the Google Cloud Console, you notice that there are no log rows to display.
What should you do to troubleshoot the issue?
Answers
Explanations
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A. B. C. D.B.
https://cloud.google.com/network-intelligence-center/docs/firewall-insights/how-to/using-firewall-insightsThe Firewall Insights feature in the Google Network Intelligence Center allows you to monitor and evaluate the efficiency of your firewall ruleset applied to Compute Engine instances. If you bring up the Firewall Insights page in the Google Cloud Console and notice that there are no log rows to display, you need to troubleshoot the issue.
Here are the options for troubleshooting the issue:
A. Enable Virtual Private Cloud (VPC) flow logging: VPC flow logs capture network traffic metadata for analysis and troubleshooting. By enabling VPC flow logging, you can get visibility into the traffic that is hitting your firewall rules. This option can help you troubleshoot if there is no traffic hitting your firewall rules.
B. Enable Firewall Rules Logging for the firewall rules you want to monitor: Firewall rules logging allows you to log the connections that are allowed or denied by your firewall rules. This option can help you troubleshoot if there is traffic hitting your firewall rules, but the rules are not working as expected.
C. Verify that your user account is assigned the compute.networkAdmin Identity and Access Management (IAM) role: The compute.networkAdmin IAM role provides full access to manage networking resources, including firewall rules. If your user account doesn't have this role assigned, you may not be able to see the Firewall Insights logs.
D. Install the Google Cloud SDK, and verify that there are no Firewall logs in the command line output: The Google Cloud SDK provides a command-line interface for interacting with Google Cloud resources. You can use the gcloud command-line tool to verify if there are Firewall logs. If there are no Firewall logs, this option can help you troubleshoot the issue.
In summary, you should consider enabling VPC flow logging, enabling Firewall Rules Logging, verifying your user account's IAM role, and checking for Firewall logs using the Google Cloud SDK to troubleshoot if you're not seeing any Firewall Insights logs in the Google Cloud Console.
