Assignment 2 Submission Mridul_220672_Software

Mridul Gupta_220672/Submission.md

@@ -0,0 +1,219 @@
+# Bandit Game
+
+This is my solution to the first 15 levels of the bandit game by over the wire .  
+
+## Level 0
+
+**Password:** bandit0   
+
+Connected to bandit using command  
+```
+ssh [email protected] -p 2220
+```
+
+ 
+## Level 0 -> 1
+
+**Password:** boJ9jbbUNNfktd78OOpsqOltutMc3MY1   
+
+Get password using  
+```
+cat readme
+```
+
+ 
+## Level 1 -> 2
+
+**Password:** CV1DtqXWVFXTvM2F0k09SHz0YwRINYA9  
+
+Got password using  
+```
+cat -- -
+```
+
+ 
+## Level 2 -> 3
+
+**Password:** UmHadQclWmgdLOKQ3YNgjWxGoRMb5luK  
+
+Got password using  
+```
+cat spaces\ in\ this\ filename
+```
+
+ 
+## Level 3 -> 4
+
+**Password:** pIwrPrtPN36QITSp3EQaw936yaFoFgAB   
+Got password using  
+```
+ls
+cd inhere
+ls -a
+cat .hidden
+```
+
+ 
+## Level 4 -> 5
+
+**Password:** koReBOKuIDDepwhWk7jZC0RTdopnAYKh  
+
+
+Identity the required file using these commands  
+```
+ls
+cd inhere
+ls -a
+file -- -*
+```
+
+Now the file07 has ASCII text format which is human readable. So, this must contain the password  
+```
+cat -- -file07
+```
+
+ 
+## Level 5 -> 6
+
+**Password:** DXjZPULLxYr17uwoI01bNLQbtFemEgo7  
+
+Get password using  
+```
+ls
+cd inhere
+ls -a
+find -type f -size 1033c ! -executable
+cat ./maybehere07/.file2
+```
+
+
+
+ 
+## Level 6 -> 7
+
+**Password:** HKBPTKQnIay4Fw76bEy8PVxKEDQRKTzs  
+
+Got password using  
+```
+find / -user bandit7 -group bandit6 -size 33c
+cat /var/lib/dpkg/info/bandit7.password
+```
+
+ 
+## Level 7 -> 8
+
+**Password:** cvX2JJa4CFALtqS87jk27qwqGhBM9plV  
+
+Got password using  
+```
+ls -a
+strings data.txt | grep millionth
+```
+
+ 
+## Level 8 -> 9
+
+**Password:** UsvVyFSfZZWbi6wgC7dAFyFuR6jQQUhR  
+
+Got password using  
+```
+ls -a
+cat data.txt | sort | uniq -u
+```
+
+
+
+ 
+## Level 9 -> 10
+
+**Password:** truKLdjsbJ5g7yyJ2X2R0o3a5HQJFuLk  
+
+Got password using
+```  
+ls -a
+strings data.txt | grep "="
+```
+
+ 
+## Level 10 -> 11
+
+**Password:** IFukwKGsFW8MOq3IRFqrxE1hxTNEbUPR  
+
+Got password using  
+```
+ls -a  
+base64 -d data.txt
+```
+
+ 
+## Level 11 -> 12
+
+**Password:** 5Te8Y4drgCRfCx8ugdwuEX8KFC6k2EUu  
+
+Got password using 
+``` 
+ls -a  
+cat data.txt | tr '[A-Za-z]' '[N-ZA-Mn-za-m]'
+```
+
+ 
+## Level 12 -> 13
+
+**Password:** 5Te8Y4drgCRfCx8ugdwuEX8KFC6k2EUu  
+
+Got password using  
+```
+ls -a
+mkdir hello
+cp data.txt > hello
+cd hello
+xxd -r data.txt > data1
+file data1
+mv data1 data1.gz
+gzip -d data1.gz > data2
+ls
+file data2
+mv data2 > data2.bz2
+bzip2 -d data2.bz2
+file data2
+```
+
+Repeat the above steps to get the ASCII text file which contains the password  
+
+ 
+## Level 13 -> 14
+
+**Password:** 4wcYUJFw0k0XLShlDzztnTBHiqxU3b3e  
+
+To login into bandit user 14, run the following command.  
+```
+ls
+ssh -i sshkey.private bandit14@localhost
+```
+
+Once logged into bandit14, get password from /etc/bandit_pass/bandit14 using cat command.  
+
+ 
+## Level 14 -> 15
+
+**Password:** BfMYroe26WYalil77FoDi9qh59eK5xNr  
+
+Being logged in as user bandit14 on localhost, run the command   
+```
+telnet localhost 30000
+```
+
+Then enter the password got at previous level and it will display the password for next level  
+
+
+ 
+## Level 15 -> 16
+
+**Password:** pIwrPrtPN36QITSp3EQaw936yaFoFgAB  
+
+After logging into level 15, run the command   
+```    
+openssl s_client -ign_eof -connect localhost:30001
+```
+
+After that enter the password you got in the previous level to get the next password.  

README.md

@@ -2,25 +2,69 @@
 
 This is the repoitory for assignment submission of Software Subsystem of Team AUV-IITK
 
-## Assignment 1: Bandit Wargame Assignment
+### Assignment 1: Bandit Wargame Assignment
+----------------------------------------------------------------------
 <b>Compulsory for <u>ALL</u> subsystems</b>
  You are required to complete the [bandit wargame](https://overthewire.org/wargames/bandit/) till level 15. This assignment will get you accustomed with CLI interface and the usage of basic bash commands.
 
- ### Steps to follow to make the submission: 
+ #### Steps to follow to make the submission: 
 - Fork this repository
 - Make a folder titled "[Name]_[Roll No.]" 
 - Make a markdown file (Readme.md/Submission.md) and list down the steps documented by you for the levels
 - Create a PR to make the submission.
 
-### Note:
+#### Note:
 - You may use the internet to understand the required commands and concepts.
 - Make sure to properly document your steps for each level in the README.md file.
-- Be sure to give a proper **Title** to your PR. (The title of PR should be "[Assignment **#** Submission]_[Name]_[Roll Number]_[Subsystem]")
+- Be sure to give a proper **Title** to your PR. (The title of PR should be "[Assignment **#** Submission]\_[Name]\_[Roll Number]\_[Subsystem]")<br>
+An example submission can have the title "Assignment 1 Submission\_Tejas Gupta\_211107\_Software"
 - If you encounter any issues or have questions, feel free to ask for assistance.
 
 Please let me know if you need further clarification
 
 Some useful resources :
 - Guide to markdown file syntax - [Link](https://www.markdownguide.org/basic-syntax/)
 
-### Deadline: 18 May 2023, 23:59:59 IST (Not extendable !!)
+#### Deadline: 18 May 2023, 23:59:59 IST (Not extendable !!)
+
+
+## Software Subsystem Assignments:
+These assignemnts are compulsory for the junior team members in software subsystem or those who would like to shift there subsystem. Though the first assignment is recommended for all.
+### Contents 
+- [Assignment 1](https://github.com/tejas012321011/Training-Y22/edit/main/README.md#assignment-1-ros-basics)
+### Assignment 1: ROS Basics
+------------------------------------------------------------------------------------------------------
+#### Prerequisites:
+- Basic knowledge of version control and md file syntax
+- Basic knowledge of bash scripting
+
+#### Aim: 
+Understanding basic concepts related to ROS: nodes, topics, publishers, subscribers, messages and packages
+#### Deadline:
+31st May, 2023
+#### Submission Format: 
+- Create a Pull Request against the Submission branch
+- Your submission should contain your source (src) folder from your workspace and a markdown file explaining all the procedures to code in detail
+
+#### Tasks:
+- Create a catkin workspace for doing your assignments.
+- Create a package titles ***math*** in that workspace.
+- Implement two ROS nodes within the "math" package:
+    - Node 1: input_node
+        - Create two ROS topics.
+        - Publish two numbers (preferably random) on the topics.
+    - Node 2: output_node
+        - Subscribe to the topics published by input_node.
+        - Calculate the sum of the two numbers.
+    - Publish the sum on a separate topic.
+        - Create a ROS service named "add_two_numbers".
+        - The service should accept two numbers from the topics published by input_node.
+        - The service should return the sum of the two numbers.  
+
+#### Resources: 
+Start with the official ROS tutorials [here](http://wiki.ros.org/ROS/Tutorials); Do note Intermediate ones are also compulsory.Other resources will be posted as required
+
+--------------------------------------------------------------------------------------
+#### Bonus Assignments: Coming Soon !!
+
+

catkin_ws/.catkin_workspace

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+# This file currently only serves to mark the location of a catkin workspace for tool integration

catkin_ws/build/.built_by

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+catkin_make