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SAShahzad Ali Ahmadshahzadahmad.devJun 20 · 5 min read

Kubernetes Troubleshooting Mindset: How I Approach Production Issues

One of the biggest lessons I’ve learned in my Kubernetes journey is this: Most production incidents are not solved by knowing more commands. They’re solved by having a systematic troubleshooting proc

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Sssnmaheshcorelogic.hashnode.devApr 27 · 18 min read

The Debugging Mindset: How Experts Actually Think When Systems Break

It's 2:17 AM. Your phone is ringing. The alert says: 40% of checkout requests are failing. You open your laptop. Messages are flooding in from your team. Everyone is throwing out guesses. Someone has

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TGTathagat Gaikwadcloudenthusiastic.hashnode.devSep 17, 2025 · 4 min read

🐧 Common Linux Troubleshooting Interview Questions – A Complete Guide with Best Practices, Tips & Tricks

Linux is the backbone of modern computing—powering servers, cloud platforms, and DevOps pipelines. In interviews for DevOps, SRE, System Administration, and Cloud roles, Linux troubleshooting questions are a favorite. But here’s the secret: interview...

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MAMuskan Agrawalmuskanagrawal.hashnode.devSep 6, 2025 · 4 min read

Battling DNS in large Kubernetes clusters

If the phrase “paged at 3 a.m.” brings back memories of mysterious app errors and dependency timeouts, DNS issues in Kubernetes probably played a starring role. Scaling clusters introduces DNS latency, frustrating outages, and debugging marathons, es...

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FNFixtops Nigeriafixtopsnaija.comAug 29, 2025 · 48 min read

How to troubleshoot a phone that won't turn on

🔎 How to Recognize the Signs of a Phone That Won’t Power On Before jumping into troubleshooting, it’s important to correctly identify the signs that your phone is truly not powering on—and not just stuck in a temporary freeze or drained battery stat...

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MAMuskan Agrawalmuskanagrawal.hashnode.devAug 28, 2025 · 3 min read

Sadserver Day 5: Troubleshooting a PostgreSQL Connection Issue

Today’s server story is about a failing database connection. A web application was trying to connect to PostgreSQL 13 on one of our servers, but the connection simply wouldn’t work. Let’s walk through the problem, the investigation, and the fix. The ...

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BSBryan Steelesteeletekk.hashnode.devMar 21, 2025 · 2 min read

🚀 Troubleshooting RSVP-TE in an MPLS Core Lab (EVE-NG)

Spent some time in the lab fine-tuning RSVP-TE over an MPLS Core in EVE-NG. The goal? Build a fully operational LSP across the service provider backbone, ensuring label switching and TE constraints work as expected. But... I ran into a classic issue:...

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HBHarendra Barotharrybdevops.hashnode.devNov 11, 2024 · 2 min read

How to Free Up Disk Space on a Full Linux System

Check Disk Usage ~ Run the following command to identify which partitions are full: df -h ~ Look for the partition with 100% usage, usually /. Clear Temporary Files ~ Free up space by clearing temporary files: sudo rm -rf /var/tmp/* sudo rm -rf...

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VRvishal raivishalrai.orgNov 10, 2024 · 2 min read

🛠️ Prevent 502 Gateway Errors During Pod Scaling with terminationGracePeriodSeconds and preStop Hooks!

When running applications on Kubernetes with auto-scaling, you may experience 502 Gateway Errors, particularly when Pods are scaling in response to sudden traffic changes. Here’s how using terminationGracePeriodSeconds and preStop hooks in your Kuber...

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RSRachit Shethrscrafted.hashnode.devAug 10, 2024 · 2 min read

Troubleshooting: Fix “Reuse Previous Session’s Directory” in iTerm2

Frustrated when your terminal forgets your last location? I’ve been there! After revamping my terminal, I ran into the same hiccup. Let’s sort this out with a quick fix and ensure iTerm2 always picks up right where you left off! Before we get started...

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Trending tags this week

Kubernetes Troubleshooting Mindset: How I Approach Production Issues

The Debugging Mindset: How Experts Actually Think When Systems Break

🐧 Common Linux Troubleshooting Interview Questions – A Complete Guide with Best Practices, Tips & Tricks

Battling DNS in large Kubernetes clusters

How to troubleshoot a phone that won't turn on

Sadserver Day 5: Troubleshooting a PostgreSQL Connection Issue

🚀 Troubleshooting RSVP-TE in an MPLS Core Lab (EVE-NG)

How to Free Up Disk Space on a Full Linux System

🛠️ Prevent 502 Gateway Errors During Pod Scaling with terminationGracePeriodSeconds and preStop Hooks!

Troubleshooting: Fix “Reuse Previous Session’s Directory” in iTerm2