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
Linux, OS Concepts and Networking
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
Go program to display IP address details of a network interface using interface name
If we want to know the IPv4 and IPv6 addresses of certain network interface using go language, … Read more
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 … Read more
Print details of network interface ( IP address, mac, status etc ) using go language program
In this post, we will write a simple golang program which can print the IP address, mac, … 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
Identify / Test file types in Linux using C program stat API
The file mode, stored in the st_mode field of the file attributes, contains two kinds of information: … Read more
Simple wifi packet sniffer to capture every packet received on wlan0 interface
This program captures the network packets received on wifi interface. If you don’t know which interface to … Read more
C program to monitor and notify changes in a directory / file using inotify
Sometime we need to monitor some directory or file for some changes in it and based on … Read more
C program to verify the integrity of a file with md5 checksum
Most of the times we downloaded some files from the internet, and we also see people provides … Read more
Capture and analyze network packets using tcpdump and tshark
We can use tcpdump to capture the packets whereas tshark to analyse the packets. Using above help, … Read more