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To C or not to C, that is a question.

NoNullsInHeaven

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Posted on 1 days ago
0 Hits NOTHING System

Use Port Knocking Behind VPN

Excerpt

Port knocking is a technique often described as security through obscurity. It allows a server administrato

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Posted on 16 days ago
3 Hits NOTHING System

Building and Installing perf for a Custom Linux Kernel on Ubuntu 22.04 LTS

Excerpt

In my previous blog, I demonstrated how to compile and install the Linux kernel 6.16.1 from upstream source

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Posted on 17 days ago
1 Hit NOTHING System

How to Compile Your Own Linux Kernel from Source on Ubuntu 22.04 LTS

Excerpt

As a systems researcher or developer, you may often find yourself needing to compile the Linux kernel from

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Posted on 2025-07-24
0 Hits NOTHING System

A Safer Way to Inject Compiler Flags into fio (Without Editing Makefiles)

Excerpt

In my previous blog, I demonstrated how to compile fio with the -fno-omit-frame-pointer flag in order to en

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Posted on 2025-07-16
0 Hits NOTHING Uncategorized

Resolving Unresolved User-Space Symbols in perf: An Example from fio

Excerpt

In my previous blog post, I explained how to resolve kernel-space symbols using perf. However, you might st

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Posted on 2025-07-04
0 Hits NOTHING System

Using perf on Linux: Understanding Symbol Resolution

Excerpt

Linux perf is an essential tool for performance troubleshooting. One of its core functionalities is perf re

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Posted on 2025-06-17
4 Hits NOTHING System

Diagnosing External Display Issues with Fedora 42 and NVIDIA: A Real-World Debug Log

Excerpt

My friend recently returned from the Teyvat Continent and we had dinner together last night. During our cat

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Posted on 2025-06-04
1 Hit NOTHING System

Installing NVIDIA Driver on Fedora 42 with Secure Boot Enabled

Excerpt

Many developers know that NVIDIA’s support for Linux isn’t exactly stellar. Still, when it comes to w

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Posted on 2025-06-02
0 Hits NOTHING System

Sanitize NVMe SSDs on Linux

Excerpt

Sometimes, we need to physically erase data blocks on disks. In the era of hard disk drives (HDDs), this wa

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Posted on 2025-06-02
0 Hits NOTHING System

Understanding BASH_SOURCE, FUNCNAME, and BASH_LINENO in Bash

Excerpt

One day, I was wondering how to share a function across multiple Bash scripts. So I asked a large language

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