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PKPratiksha kadamrunning-cloud.hashnode.devApr 20 · 3 min read

Sad Servers Devops Challenges Solutions Part 1:

Intro: SadServers is a leetcode type of platform for system administrator/devops/sre engineers to solve real troubleshooting problem using free and paid virtual servers . I have attempted free and bot

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PKPratiksha kadamrunning-cloud.hashnode.devApr 10 · 3 min read

Sad Servers Devops Challenges Solutions Part 1:

SadServers is a leetcode type of platform for system administrator/devops/sre engineers to solve real troubleshooting problem using free and paid virtual servers . I have attempted free and both paid

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PKPratiksha kadamlinuxlinks.hashnode.devFeb 17 · 14 min read

Linux Troubleshooting

In this series of articles, I write about scenarios from the website "Sad Servers" and provide detailed explanations of the tasks and solutions. The website is described as "Like LeetCode for Linux",

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MAMuskan Agrawalmuskanagrawal.hashnode.devSep 24, 2025 · 3 min read

SadServers Day 9: Closing an Open File Without Killing the Process

Have you ever come across a situation where a critical file is locked by some running process and the usual sudo kill hammer isn't an option? That was my challenge in the SadServers Oaxaca scenario. The requirement sounded deceptively simple: the fil...

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MAMuskan Agrawalmuskanagrawal.hashnode.devSep 17, 2025 · 3 min read

SadServers Day 8: A Day Decoding Kubernetes Pod Rescheduling

The Problem Statement Earlier today, I came across a scenario on SadServers that felt pretty close to what real-life SRE/DevOps work throws your way: there’s a Kubernetes cluster running with two worker nodes. Each node is hosting pods created using ...

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MAMuskan Agrawalmuskanagrawal.hashnode.devSep 11, 2025 · 2 min read

Sadservers Day 7: Resolving the Classic Kubernetes CrashLoopBackOff Issue

The Problem Statement There are two pods: "logger" and "logshipper" living in the default namespace. Unfortunately, logshipper has an issue (crashlooping) and is forbidden to see what logger is trying to say. Could you help fix Logshipper? Do not cha...

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MAMuskan Agrawalmuskanagrawal.hashnode.devSep 7, 2025 · 2 min read

Sadservers Day6: Renewing SSL certificates

Problem Statement Today’s challenge involved an expired SSL certificate on an Nginx server serving a “Hello, World!” page over HTTPS. The goal: generate a new certificate with identical issuer and subject details, ensuring seamless security and confi...

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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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MAMuskan Agrawalmuskanagrawal.hashnode.devAug 19, 2025 · 3 min read

Sadservers Day2: Sherlock Holmes and the Case of the Noisy IP

After an on-call shift at work, it took some real strength to pick up Day 2 of Sadservers.com puzzle, but I’m glad I mustered up the courage. Here’s how it went: The Problem Statement There's a huge web server access log at /home/admin/access.log, wi...

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RBRithik Bhandaririthik24.hashnode.devJun 26, 2024 · 2 min read

Scenario: "Manhattan": can't write data into database.

Lets make a server happyhttps://sadservers.com/scenario/manhattanFrom the description we know - postgres database running on 5432 port. config file at /etc/postgresql/14/main/postgresql.conf writes to disk at data_directory as mentioned in config ...

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Trending tags this week

Sad Servers Devops Challenges Solutions Part 1:

Sad Servers Devops Challenges Solutions Part 1:

Linux Troubleshooting

SadServers Day 9: Closing an Open File Without Killing the Process

SadServers Day 8: A Day Decoding Kubernetes Pod Rescheduling

Sadservers Day 7: Resolving the Classic Kubernetes CrashLoopBackOff Issue

Sadservers Day6: Renewing SSL certificates

Sadserver Day 5: Troubleshooting a PostgreSQL Connection Issue

Sadservers Day2: Sherlock Holmes and the Case of the Noisy IP

Scenario: "Manhattan": can't write data into database.