Infrastructure resources
Troubleshooting notes on servers, DNS, virtualization, cloud, Linux, DevOps and backup. Written from real work, not rewritten vendor documentation.
Terraform State: Common Problems, Locking and Recovery
Learn how Terraform state works, why state locking matters, common state problems, safe recovery methods, remote backends, state backups and production best practices.
Read →Argo CD: Complete GitOps Deployment Guide
Learn how to deploy applications to Kubernetes with Argo CD. This complete guide covers installation, Git repositories, Applications, synchronization, auto-sync, rollback, drift detection, secrets and production best practices.
Read →GitOps Explained: Why Teams Are Moving from CI/CD to GitOps
Learn what GitOps is, how it differs from traditional CI/CD, and why teams use Git as the source of truth for Kubernetes and cloud infrastructure deployments.
Read →Azure Load Balancer vs Application Gateway: Technical Comparison
Azure Load Balancer vs Application Gateway explained with a technical comparison of Layer 4 and Layer 7 load balancing, routing, TLS termination, WAF, health probes, backend pools and common use cases.
Read →Azure Cost Optimization: How to Find and Reduce Wasted Resources
Learn how to identify wasted Azure resources and reduce cloud costs by finding idle VMs, unattached disks, unused public IPs, oversized workloads, unnecessary snapshots and inefficient architectures.
Read →Azure Storage Security: Common Configuration Mistakes
Learn how to secure Azure Storage Accounts by avoiding common configuration mistakes involving public access, shared keys, SAS tokens, RBAC, networking, encryption, HTTPS, logging and data protection.
Read →Azure NSG Explained: How Network Security Groups Actually Work
Understand how Azure Network Security Groups work, including inbound and outbound rules, priorities, subnet and NIC associations, service tags, application security groups, troubleshooting and common configuration mistakes.
Read →Azure VM Troubleshooting: Common Problems and Solutions
A practical guide to troubleshooting Azure Virtual Machines, including SSH and RDP failures, boot issues, disk problems, CPU and memory bottlenecks, NSG rules, networking, VM extensions and performance issues.
Read →AWS EBS Volume Troubleshooting and Performance Optimization
Learn how to troubleshoot AWS EBS volume issues, diagnose disk space and performance problems, monitor IOPS and throughput, expand filesystems, and optimize EBS volumes for production workloads.
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