Understanding ARP (Address Resolution Protocol) basics
The MAC address is how machines on a subnet communicate. When machine A sends packets to another … Read more
Operating System Concepts
Linux Initscript Example to start and stop process during booting
The below shell script uses start-stop-daemon from “/sbin/start-stop-daemon” to execute the program during booting so that the … Read more
How to identify and kill zombie process in Linux ?
If you already knows whats zombie process and wanted to identify all zombie process’s in you system, … Read more
Wi-Fi Initial Communication between device and access point
Following diagram shows the initial handshaking between the device ( like mobile ) and wireless access-point ( … Read more