Achieve Success in the Google Professional-Cloud-Security-Engineer Exam: A Detailed Google Cloud Certified - Professional Cloud Security Engineer Guide

https://cloud.google.com/load-balancing/docs/ssl - SSL Proxy Load Balancing is a reverse proxy load balancer that distributes SSL traffic coming from the internet to virtual machine (VM) instances in your Google Cloud VPC network.

Provide granular access to secrets: 2.Enforce access control to secrets using project-level identity and Access Management (IAM) bindings. Give you control over the rotation schedules for the encryption keys that wrap your secrets: 3. Use customer-managed encryption keys to encrypt secrets. Maintain environment separation: 1. Use separate Google Cloud projects to store Production and Non-Production secrets.

Cloud NAT Service: Use Cloud NAT (Network Address Translation) to allow VM instances without external IP addresses to access the internet securely.

Configuration: Configure Cloud NAT for the subnets containing your VM instances. This setup allows the VMs to initiate outbound connections to the internet for updates and other necessary communications.

Security Compliance: By using Cloud NAT, you adhere to the security policy of not assigning external IP addresses to VMs while still enabling necessary internet connectivity. Cloud NAT provides a secure method for outbound internet traffic without exposing VMs directly to the public internet. References:

Google Cloud - Cloud NAT Overview

Google Cloud - Configuring Cloud NAT

To provide users with SSO-based access to selected cloud apps, Cloud Identity as your IdP supports the OpenID Connect (OIDC) and Security Assertion Markup Language 2.0 (SAML) protocols. https://cloud.google.com/identity/solutions/enable-sso

Requirement:

Enforce the use of Customer-Managed Encryption Keys (CMEK) for all new Cloud Storage resources in the organization.

Policy Constraint:

Use the constraints/gcp.restrictNonCmekServices constraint to enforce CMEK usage.

Policy Type and Value:

Set the policy type to allow to specify which services must use CMEK.

In this case, the policy value should be storage.googleapis.com to target Cloud Storage.

Command:

Applying the organization policy with the appropriate binding ensures that all new Cloud Storage resources under the organization will require CMEK.

Steps:

Step 1: Go to the Google Cloud Console.

Step 2: Navigate to the Organization Policies page.

Step 3: Apply the policy constraint constraints/gcp.restrictNonCmekServices with the allow policy type and storage.googleapis.com as the policy value.

References:

Organization Policy Constraints

Customer-Managed Encryption Keys (CMEK)

External HTTP(S) Load Balancer: Deploy an external HTTP(S) load balancer to manage traffic to your VMs. This load balancer will handle incoming traffic from the internet while the VMs themselves do not have public IP addresses.

Host (VPC) Project Deployment: Deploy the load balancer in the host (VPC) project. This allows for centralized management of network resources and maintains the integrity of your shared VPC configuration.

Backend Configuration: Configure the MIG as the backend for the load balancer. This setup ensures that the VMs can still serve external users while reducing their direct exposure to the internet. This solution provides the required access to external users through the load balancer, enhancing security by not exposing individual VM IP addresses. References:

Google Cloud - External HTTP(S) Load Balancer Overview

Google Cloud - Shared VPC Overview

Use Cloud External Key Management (EKM) that integrates with an external Hardware Security Module (HSM) system from supported vendors: Cloud EKM allows you to use encryption keys that are managed externally to Google Cloud. This means you can generate and store your keys in an on-premises HSM or another supported external HSM service, and integrate these keys with various Google Cloud services.

Integration with Google Services: Cloud EKM integrates seamlessly with many Google Cloud services, including BigQuery, Cloud Storage, Compute Engine, and more. This provides you with full control over your encryption keys while still taking advantage of Google Cloud's powerful services.

References

Cloud External Key Management (EKM) documentation

External Key Management overview

Uniform Bucket-Level Access: Enable uniform bucket-level access for all your Cloud Storage buckets. This feature ensures that access control is applied consistently at the bucket level, simplifying management and improving security.

Domain Restricted Sharing: Enforce domain-restricted sharing through an organization policy. This policy ensures that only users within your organization’s domain can access the data in the buckets, preventing public exposure.

Policy Enforcement: Apply the necessary IAM policies and ensure that no buckets are configured to allow public access. This combination of settings ensures that data in Cloud Storage buckets remains private and accessible only to authorized users within your organization. References:

Google Cloud - Uniform Bucket-Level Access

Google Cloud - Organization Policy Service

Disable service account key creation You can use the iam.disableServiceAccountKeyCreation boolean constraint to disable the creation of new external service account keys. This allows you to control the use of unmanaged long-term credentials for service accounts. When this constraint is set, user-managed credentials cannot be created for service accounts in projects affected by the constraint. https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#example_policy_boolean_constraint

Objective: Migrate ongoing data backup and disaster recovery solutions to GCP.

Solution: Use Cloud Storage with scheduled tasks and gsutil.

Steps:

Step 1: Set up a Cloud Interconnect to ensure stable networking connectivity between the on-premises environment and GCP.

Step 2: Create a Cloud Storage bucket to store backups.

Step 3: Use gsutil, a command-line tool for Cloud Storage, to create scripts for data transfer.

Step 4: Schedule these scripts using cron jobs or another scheduling tool to automate the backup process.

Using Cloud Storage with scheduled tasks and gsutil ensures efficient and reliable backup and disaster recovery while leveraging stable connectivity provided by Cloud Interconnect.

References:

Cloud Storage Documentation

gsutil Tool Documentation

Cloud Interconnect Documentation