CIDR Planning using GCP Networking
CIDR Guide: GCP VPCs, Subnets & IP Planning CIDR Explained: A Practical Guide to GCP VPCs, Subnets, and IP Address Planning CIDR determines how many IP addresses belong…
Archive
Category: GCP Networking
Which GCP Services need VPCs? Which do not?
Which GCP Services Need a VPC? Networking Guide What Needs a VPC in Google Cloud—and What Doesn’t? When designing a Google Cloud architecture, a common question is:…
Pass through and Proxy based Load balancers
Pass-Through vs. Proxy-Based Load Balancers What Is the Opposite of a Pass-Through Load Balancer? The closest architectural opposite of a pass-through load balancer is a proxy-based load balancer,…
System generated Routes in GCP versus Azure
System-Generated and Custom Routes in GCP and Azure Google Cloud and Microsoft Azure automatically create routes to provide basic network connectivity. These provider-managed routes allow resources within a…
GKE Control Plane and Public IPs and Private Service Connect
By default, when you create a public cluster, GKE assigns an external IP address (external endpoint) to the control plane and provisions public nodes. This means that any…
Cloud CDN to deal with unauthenticated users
Use Case – serve content to users who are not authenticated Cloud CDN can cache content that doesn’t require authenticated users.
Default VPC Firewall Rules in GCP
All inbound traffic is denied by default However, all OUTBOUND is allowed by default. So – if there is a need to ensure that the default VPC instances…
Firewall Rules in GCP – Service Accounts versus Tags
Both – network tags – and Service accounts – are viable options (for target instances) when defining firewall rules. However, if both these exist for a certain VM,…
VPC Service Controls – As Firewall Rules
Are like firewalls – Firewall rules allow/block based on IP addresses – VPC service controls allow/block based on a project perimeter For e.g. to Ensure that cloud storage…
Google Cloud DNS – Overview and Use Cases
DNS Terms and Overview Zone Files, A Records, CName Records Cloud DNS – Records versus Record Sets Cloud DNS directs incoming traffic according to its record sets. As…