Presentation – Operating System Concepts

OS Concepts

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Understanding pcap file format – part I – Global Header

The file must begin with a Section Header Block.  Below is typical configuration, with a single Section Header … Read more

Understanding Linux page cache memory

If data is written, it is first written to the Page Cache and managed as one of … Read more

Understanding filesystem presence for a simple C program when executing

In our last two posts, we tried to learn writing of a very minimal simple C program … Read more

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 … Read more

Sending ARP request and receiving ARP Reply using C code

This post is in continuation of our previous post “Understanding ARP (Address Resolution Protocol) basics“ To visualise … Read more

Understanding Linux Signals with simple C program

Signals are a limited form of inter-process communication (IPC), typically used in Unix, Unix-like, and other POSIX-compliant … Read more