🔐 OverTheWire Bandit Writeups

This repository contains my personal writeups and learning notes while solving the OverTheWire Bandit wargame.
The goal of this journey is to strengthen my Linux fundamentals, command-line usage, file handling, networking basics, and problem-solving skills through hands-on labs.

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📚 About Bandit

Bandit is a beginner-friendly Linux-based wargame created by OverTheWire.
Each level teaches important Linux and cybersecurity concepts such as:

• File operations
• Permissions
• Searching and filtering data
• Encoding/decoding
• Compression
• Networking
• SSH authentication
• SSL/TLS communication

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🚀 Progress Tracker

Level	Status	Level	Status	Level	Status	Level	Status
0 → 1	✅	9 → 10	✅	18 → 19	⬜	27 → 28	⬜
1 → 2	✅	10 → 11	✅	19 → 20	⬜	28 → 29	⬜
2 → 3	✅	11 → 12	✅	20 → 21	⬜	29 → 30	⬜
3 → 4	✅	12 → 13	✅	21 → 22	⬜	30 → 31	⬜
4 → 5	✅	13 → 14	✅	22 → 23	⬜	31 → 32	⬜
5 → 6	✅	14 → 15	✅	23 → 24	⬜	32 → 33	⬜
6 → 7	✅	15 → 16	✅	24 → 25	⬜	33 → 34	⬜
7 → 8	✅	16 → 17	⬜	25 → 26	⬜	34 → 35	⬜
8 → 9	✅	17 → 18	⬜	26 → 27	⬜

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🛠️ Commands & Concepts Covered

🔹 Linux Basics

• ls , cd, cat, nano , vi, chmod, cp, mv

🔹 Searching & Filtering

• grep , find ,sort ,uniq, strings

🔹 File Analysis & Compression

• file , xxd, gzip / gunzip ,bzip2 / bunzip2

🔹 Encoding & Text Processing

• base64 ,tr

🔹 Networking & Communication

• ssh ,scp , nc / ncat , telnet ,openssl

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📖 Approach

For each level, I follow a structured approach:

1. Understand the problem
2. Try multiple commands and approaches
3. Document the working solution
4. Explain why the solution works
5. Note key learnings

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🚀 Future Plan

• Complete all Bandit levels
• Move to advanced wargames (Natas, Leviathan)
• Apply these concepts in real-world cybersecurity scenarios

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👨‍💻 Author

Arijit Nayak
Aspiring SOC Analyst
Focused on building practical cybersecurity skills

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