IBM Cloud VPC: Routing Private Subnet Traffic Through a NAT Gateway
Give private-subnet VSIs outbound internet access without assigning floating IPs to every instance. Compare NAT gateways with public gateways and verify the route.
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Auditing Privileged Actions with IBM Cloud Activity Tracker
Stop guessing who changed your cloud configuration. Learn how to use IBM Cloud Activity Tracker to audit privileged operations and verify administrative changes via CLI and Log Analysis.
Optimizing Costs with Lifecycle Rules on Versioned IBM Cloud Object Storage Buckets
Learn how to use IBM Cloud Object Storage lifecycle rules to automatically move older object versions to cheaper storage classes, reduce costs, and keep version history intact.
IBM Cloud VPC: Layering Network ACLs and Security Groups for Defense in Depth
Security Groups and Network ACLs in IBM Cloud VPC provide layered defense: SGs are stateful instance allow‑lists; ACLs are stateless subnet guardrails with deny rules. See a three‑tier example, CLI steps, Flow Log verification, and trade‑offs.
IBM Cloud VPC Public Gateways: Choosing Subnet Egress Over Floating IPs
IBM Cloud VPC public gateways provide subnet-level outbound internet access without per-instance floating IPs, but they are an egress path, not a security boundary.
Architecture Note: IBM Cloud Object Storage Lifecycle Rules with Versioned Buckets
ICOS lifecycle rules apply independently to current and noncurrent versions in versioned buckets. Scope rules by prefix to avoid unexpected retrieval charges.
Reducing IBM Cloud Object Storage Costs with Infrequent Access Lifecycle Rules
Learn how to use IBM Cloud Object Storage lifecycle policies to automatically move aging data to the Infrequent Access tier, reducing costs while managing retrieval latency.
Architecture Note: Hub-and-Spoke Connectivity with IBM Cloud Transit Gateway
Learn how to implement a hub-and-spoke network topology using IBM Cloud Transit Gateway to reduce peering complexity, centralize egress, and manage multi-VPC routing.
Diagnosing VSI-to-VSI Connectivity Issues in IBM Cloud VPC Using Security Groups
Step‑by‑step guide to diagnose and fix TCP connectivity failures between IBM Cloud VSIs caused by missing or misconfigured Security Group rules.