The tasks are based on a web application called ELGG which is open source. It is designed to be like an open source version of Facebook or myspace. The prebuilt vm called seedubuntu is used to host...

Set-UID is an important security mechanism in unix systems. When a Set-UID program is run, the executing program assumes the owner’s privileges irrespective of the user running the program. The tas...

A hash function is said to be secure if it is a one way hash function and is collision resistant. The one way property ensures that given a hash value h, it is computationally infeasible to find an...

A shell is an interface to the operating system’s services. All process are created by fork() and given a new direction by the exec() process. The trace of forks and calls can be seen from the stra...

Simple Client Program import java.util.*; import java.net.*; import java.io.*; public class client { public static void main(String[] args) throws Exception { Socket s = new Socke...

This is a practical study I made using some videos and written resources to understand device drivers to some extent. Building a module Device drivers hide the details of how the device works. Us...

Stack 0 #include <stdlib.h> #include <unistd.h> #include <stdio.h> int main(int argc, char **argv) { volatile int modified; char buffer[64]; modified = 0; gets(bu...