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Operating System Concepts
Shared Memory Difference between Mutex and Semaphore Difference between Spinlock and Semaphore How to use pthread_mutex_lock to … Read more
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Operating System Concepts
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Presentation – Operating System Concepts
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Career with Embedded System and Linux Learn C Programming with Simple Examples Learn Basics of Embedded System … Read more
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Go Program : Identify total number of network interfaces and display the details using index
Following example shows how to identify total number of available network interfaces and display its details using network packages InterfaceByIndex API. $ vim InterfaceByIndex.go package main import ( "net" "fmt" "log" ) func main(){ ifaces, err := net.Interfaces() if err != nil {
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Understanding Array Size Limits in C and Resolving Stack Smashing Detected Errors
Arrays are fundamental data structures in C, widely used to store collections of elements. However, improper handling … Read more
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File Permissions in Linux with C: A Complete Guide to Testing Permissions
File permissions are an integral part of file system security in Linux. They control who can read, … Read more
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Inspect File Attributes in C Using the stat System Call
The stat() system call in POSIX C returns file metadata—including file size, inode number, permission bits, block allocation count, ownership UIDs, and access timestamps—from a file's inode structure without opening or reading the file contents. The struct stat data structure The system header <s
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Understanding DevOps: Key Concepts, Benefits, and Real-World Applications
DevOps is a combination of practices, tools, and a cultural philosophy that automates and integrates the processes … Read more
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Creating Multiple Threads and Identifying Thread IDs in C Using Pthread Library
Multi-threading is an essential concept in modern programming, allowing multiple tasks to be performed simultaneously within a … Read more
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Mastering cURL: How to Perform HTTP GET and POST Requests with JSON and XML Data
When it comes to interacting with APIs or web servers, cURL is an incredibly powerful and versatile … Read more
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Lynxbee Is Where Engineering Questions Get Worked Through
Lynxbee is built for the moment when a neat answer is not enough: you need to understand the system, test the claim, and get unstuck without pretending uncertainty has disappeared.
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WiFi monitor mode and commands to enforce monitor mode in Linux / Ubuntu
Monitor mode, or RFMON (Radio Frequency MONitor) mode, allows a computer with a wireless network interface controller (WNIC) to monitor all traffic received from the wireless network. Monitor mode allows packets to be captured without having to associate with an access point or ad hoc network first.
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The 3 A’s for Happy Life: Attitude, Action and Adaptability with Practical Tips
A happy and successful life isn’t just about luck or talent—it’s about how you think, act, and … Read more
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Create a Custom Flutter Plugin with Android Support (Full Integration Guide)
Flutter allows you to write cross-platform mobile apps using Dart, but sometimes you need to access native … Read more
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Grep and Replace Strings in Source Code via the Linux Command Line
Use grep , sed , and find to search and replace strings across a codebase instead of doing it manually. Step 1: Find a String with grep -r — recursive -n — shows line numbers -w — matches whole word -e — the pattern Step 2: Replace a String in One File with sed -i — edits in place s — subs
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Inspect Wireless Networks on Linux Using iwlist
The iwlist command-line utility displays detailed diagnostic information from wireless network interfaces on Linux. It allows developers and sysadmins to scan for nearby access points, inspect signal quality, check operating frequencies, and verify encryption schemes without needing a graphical de
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Understanding Django Project and App Binding / Architecture
Django, a high-level Python web framework, encourages rapid development and clean, pragmatic design. One of its core … Read more
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Pass Structs to Functions in C: Pass by Value vs Pass by Reference
In C programming, a struct groups related variables under a single type name. When passing a struct into a function, you can pass it by value (making a complete copy of the data) or by reference (passing a pointer).
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Disable RSS and Atom Feeds in WordPress via functions.php
WordPress generates RSS, RSS2, RDF, and Atom feeds automatically for site content, comments, and categories. If your site does not operate as a blog or if you want to prevent automated content scraping, you can disable RSS feeds using PHP code or a plugin.