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Build and Secure Networks in Google Cloud

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Task 1: Check the firewall rules. Remove the overly permissive rules

gcloud compute firewall-rules delete open-access

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Task 2: Navigate to Compute Engine in the Cloud Console and identify the bastion host. The instance should be stopped. Start the instance

Go to Compute Engine > VM Instances > Select bastion > click on Start

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Task 3: The bastion host is the one machine authorized to receive external SSH traffic. Create a firewall rule that allows SSH (tcp/22) from the IAP service. The firewall rule should be enabled on bastion via a network tag.

gcloud compute firewall-rules create ssh-ingress --allow=tcp:22 --source-ranges 35.235.240.0/20 --target-tags ssh-ingress --network acme-vpc
gcloud compute instances add-tags bastion --tags=ssh-ingress --zone=us-central1-b

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Task 4: The juice-shop server serves HTTP traffic. Create a firewall rule that allows traffic on HTTP (tcp/80) to any address. The firewall rule should be enabled on juice-shop via a network tag

gcloud compute firewall-rules create http-ingress --allow=tcp:80 --source-ranges 0.0.0.0/0 --target-tags http-ingress --network acme-vpc
gcloud compute instances add-tags juice-shop --tags=http-ingress --zone=us-central1-b

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Task 5: You need to connect to juice-shop from the bastion using SSH. Create a firewall rule that allows traffic on SSH (tcp/22) from acme-mgmt-subnet network address. The firewall rule should be enabled on juice-shop via a network tag

gcloud compute firewall-rules create internal-ssh-ingress --allow=tcp:22 --source-ranges 192.168.10.0/24 --target-tags internal-ssh-ingress --network acme-vpc
gcloud compute instances add-tags juice-shop --tags=internal-ssh-ingress --zone=us-central1-b

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Task 6: In the Compute Engine instances page, click the SSH button for the bastion host. Once connected, SSH to juice-shop

ssh <internal IP of the juice-shop>

  • Hub: https://github.com/gdsc-pdeu

  • LinkedIn: https://linkedin.com/company/developer-student-clubs-pdeu

  • Instagram: https://www.instagram.com/dsc.pdeu/

GDSC Lead - Jay Gohil:

  • Website: https://jay-gohil.me/

  • LinkedIn: https://www.linkedin.com/in/jay--gohil/

  • GitHub: https://github.com/gohil-jay

  • Instagram: https://www.instagram.com/_jay.gohil/

GCP Facilitator - Jay Patel:

  • Website: http://pateljay.me/

  • LinkedIn: https://www.linkedin.com/in/--jaypatel--/

  • GitHub: https://github.com/jaypatel31

  • Instagram: https://www.instagram.com/jaypatel98196/

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