This image shows an Oracle Cloud Infrastructure tenancy enclosing a region with a single availability domain and 2 fault domains. The region provides a virtual cloud network (VCN) with an internet gateway to provide public communication s. The VCN contains 2 public subnets arranged as functional tiers:
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Web Tier - regional public subnet A: WordPress is deployed on a virtual machine (VM) in fault domain 1. Matomo analytics are deployed on a VM in fault domain 2. An internet gateway provides a public connection to the subnet.
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Database Tier - regional private subnet B: A MySQL database resides in fault domain 1 and manages traffic to the Web Tier.