Practical guides on security, cost, performance, reliability, and operations across AWS, Azure, and GCP.
592 posts — page 17 of 33
When every target in an AWS target group is unhealthy, your load balancer serves only errors. Learn to diagnose, fix, and prevent empty target groups.
Learn why GCP Compute Engine boot disk auto-delete causes silent data loss, how to disable it with gcloud and Terraform, and how to enforce safe defaults.
Learn why an AWS Lambda function ends up with no CloudWatch log group, the risks of running blind, and step-by-step fixes with IAM, CLI, and Terraform.
Learn why an EKS API endpoint open to 0.0.0.0/0 is a risk, how to restrict it with allowed CIDRs or private access, and how to prevent it with policy as code.
Amazon Redshift clusters using the default master username awsuser give attackers half a credential pair for free. Learn why it matters and how to fix it.
Learn why a missing Azure Monitor activity log profile leaves your subscription without an audit trail, and how to export, enforce, and verify activity logs.
Learn why AWS ACM certificate validation fails, the real risks of an unissued cert, and step-by-step DNS, CAA, and Terraform fixes to keep TLS working.
Learn why disabling log_disconnections on Azure PostgreSQL hurts incident response and audits, plus CLI, Terraform, and Azure Policy fixes to enable it.
Detached AWS Virtual Private Gateways waste quota, cause audit noise, and can bill you for idle VPNs. Learn how to detect, delete, and prevent unused VGWs.
Learn why AWS OpenSearch/Elasticsearch domains must enforce HTTPS, the risks of plain HTTP, and step-by-step CLI, console, and Terraform fixes.
Azure NSG rules that expose FTP ports 20 and 21 to the internet leak cleartext credentials. Learn the risks and how to remediate and prevent them.
Learn what a failing EC2 system status check means, why it signals hardware or hypervisor trouble, and how to recover and prevent outages with auto recovery.
Learn why GCP managed instance groups without auto-healing leave broken VMs serving traffic, plus step-by-step gcloud and Terraform fixes and CI/CD prevention.
Learn why an Azure NSG rule allowing public SSH on port 22 is dangerous, how to fix it with CLI and IaC, and how to prevent it with Azure Policy and CI/CD gates.
Learn why Compute Engine disk snapshots older than 180 days drive up cost and data exposure, plus how to clean them up and automate retention in GCP.
Learn why Azure PostgreSQL servers need geo-redundant backups, the regional disaster risk of locally redundant storage, and how to enable it via CLI, Terraform, and policy.
Learn how to detect and remediate AWS Lambda functions running on deprecated runtimes, with CLI fixes, IaC examples, and CI/CD policy gates to prevent drift.
Learn how to detect and fix disabled EC2 termination protection on AWS, prevent accidental instance deletion, and enforce the setting with IaC and policy-as-code.
