Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Troubleshooting Kubernetes networking issues is challenging because it spans multiple abstraction layers: pods, services, network policies, and the underlying infrastructure. Here’s a systematic approach. 1. Understand the Scope Identify the specific symptom: Pods can’t talk to each other? Services unreachable? External access broken? DNS lookups failing? Determine whether the problem hits one pod, one namespace, […]
Troubleshooting routing issues in IT infrastructure requires a methodical approach to identify and resolve the root cause of the problem. Here are the steps you can follow: 1. Understand the Problem Talk to users or teams experiencing the issue to understand the symptoms: unreachable services, slow connections, intermittent connectivity. Document affected devices, IP addresses, networks, […]
1. Verify the Problem Gather detailed information from users about the issue (slow connection, access denied, cannot connect). Determine whether the issue affects all users, specific applications, or certain locations/subnets. Check for specific error codes or messages displayed to users or in proxy logs. 2. Check Network Connectivity Ping the proxy server to ensure you […]
Resolving “Out of Memory” (OOM) killer events on Linux servers requires a systematic approach to identify the cause and implement appropriate solutions. Here are the steps and strategies to address OOM issues: 1. Analyze Logs and Identify the Cause Check System Logs: Examine the /var/log/messages or /var/log/syslog file for OOM-related entries. Search for “oom-killer” or […]
Troubleshooting application compatibility issues in a mixed infrastructure — datacenters, storage, backup, servers, virtualization, Kubernetes, GPU workloads — takes a methodical process. Here’s how to work through it. Step 1: Identify the Scope Gather the application’s documented requirements: supported OS versions, libraries, dependencies, hardware minimums. Determine whether the problem is isolated to one component (OS, […]
Troubleshooting IT infrastructure integration issues means dealing with servers, storage, virtualization platforms, networks, and applications all at once. Here’s a structured approach: 1. Identify the Scope and Impact Gather detailed information about the issue from users, logs, or monitoring tools. Is the problem affecting a specific component (e.g., storage, server, network) or the integration between […]
