If you want to see the level 14- 15, follow this link: http://www.anonhack.in/2018/09/overthewire-natas-series-14-15-levels/ Level 15-16 is also based on SQL injection but here we have to work on boolean based SQL injection technique. Let me how you how: This is what the screen looks like: I put “natas16” as the user […]


This write-up is the walkthrough for OVERTHEWIRE NATAS level 12 to level 14. Both these levels contain upload the image kind of challenges where we have to upload a shell bypassing the code. LEVEL 12 – 13: The above image is the screen for overthewore natas challenge 12, When you […]

Java Program to left rotate the Array

The following Java program rotates the array to d rotational integer. A left rotation operation on an array shifts each of the array’s elements  unit to the left. For example, if left rotations are performed on array [1,2,3,4,5], then the array would become [3,4,5,1,2]. The Code makes use of swapping using temp variable for circular […]

Swapping every two bits in byte Java Solution

In the Swapping of two bits in byte in java, the output should look like something below: Swap all the pair of bits in a byte. Before swapping: 11-10-11-01 After swapping: 11-01-11-10 The code is written and tested in Netbeans. Code: import java.util.Arrays; import java.util.Scanner; public class bitbyte { public […]

Converting Decimal to Binary in Java

The below code will convert decimal number in binary format [bits] in java. I have taken a byte as an array, i.e. 8. You can take more depending on your needs. The input for the current program is a with the value 48. You can take the input through scanner […]

GoldenEye 1 Walkthrough: Vulnhub vulnerable machine

This article is a walkthrough for GoldenEye vulnerable machine. In the description of this machine, it says that it is similar to OSCP machine. So, I have written a walkthrough on it. To download Goldeneye 1, follow the link: https://www.vulnhub.com/entry/goldeneye-1,240/ Requirements: Kali Linux or your favorite OS Virtualbox Goldeneye VM Patience […]