Google Cloud VPC Peering, Firewall Rules & Hybrid Connectivity | 2-Tier App Deployment | Day 7

Описание: Day 7 dives into VPC networking, firewall configurations, and hybrid connectivity in Google Cloud. A real-world use case of a 2-tier application deployment is demonstrated, followed by hands-on configurations.

Key Topics Covered
Use Case: 2-Tier Application Deployment
• Components:
o GCE Web Server VM (Frontend)
o GCE App + DB Server VM (Backend)

• Solution:
o VPC with subnetworks
o Native firewall rules to whitelist TCP/IP ports (80, 443, 8080, 1433, 1434)
o Default Firewall Rules: Allow RDP, SSH, ICMP, and internal traffic
o Custom Firewall Rules:
 Allow ingress from the internet to Port 80 & 443
 Allow ingress from Web Server to App+DB on Ports 8080, 1433 & 1434
o Network Tags: To control traffic flow per instance

VPC Peering & Shared VPC
• VPC Peering: Enables communication between two VPCs while maintaining isolation
• Shared VPC: Allows multiple projects to use a single VPC for resource deployment
o Host Project: Manages the main VPC
o Service Projects: Leverage the shared VPC for resource provisioning

Hybrid Connectivity & Secure Communication
• Cloud VPN: Secure IPSec VPN tunnel for VPC-to-VPC or on-prem to cloud connectivity
• Interconnect: Dedicated VPN tunnel that avoids the public internet but lacks encryption

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