Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Troubleshooting DNS resolution issues inside Kubernetes clusters can be challenging, but systematic steps can help identify and resolve the problem. Here’s a detailed guide: 1. Check Pod DNS Configuration Start by verifying the DNS configuration of the affected pod: – Get Pod’s DNS Info: bash kubectl exec -it <pod-name> — cat /etc/resolv.conf Look for: – […]
Migrating applications from one Kubernetes cluster to another can be a complex process that requires careful planning and execution to avoid downtime and data loss. Here’s a step-by-step guide to help you manage the migration effectively: 1. Assess the Source and Target Cluster Source Cluster: Evaluate the current state of the source cluster. Note Kubernetes […]
Troubleshooting kubelet service failures on Kubernetes nodes requires a systematic approach to identify and resolve the underlying issue. Below is a structured guide that you can follow as an IT Manager responsible for Kubernetes infrastructure: 1. Check Kubelet Service Status Use systemctl to check if the kubelet service is running: bash systemctl status kubelet Look […]
Troubleshooting intermittent application crashes can be challenging because the issue may not occur consistently, and the root cause may involve multiple layers of the IT infrastructure. As an IT manager responsible for the data center, infrastructure, and platforms, you should take a systematic approach to identify and resolve the problem. Here’s a step-by-step troubleshooting guide: […]
Implementing change management in IT infrastructure is essential to ensure that changes to your systems, applications, and environment are carried out in a controlled, efficient, and non-disruptive manner. Below is a step-by-step guide tailored to IT infrastructure, including data centers, storage, servers, virtualization, Kubernetes, and other components: 1. Define a Change Management Policy Scope: Determine […]
Configuring IT infrastructure for multi-tenant environments requires careful planning and execution to ensure isolation, performance, security, and scalability for multiple tenants. A multi-tenant architecture allows multiple customers (tenants) to share the same infrastructure resources while maintaining logical separation. Below is a step-by-step guide to designing and configuring IT infrastructure for multi-tenancy: 1. Understand Tenant Requirements […]
