How to Read This Book
Namaskar mitrano! Mi Ravindra Bagale. Ha book mhanje majha Cyber Security class – fakt kagdavar. Class madhe mi jasa bolto, tasach ithe lihila aahe: technical goshti English madhe, aani madhe madhe aapli Marathi (thodi Hindi pan), jenekarun vachtana "sir samor baslet" asa vatla pahije. Ekhada topic avghad vatla tar ghabru naka – ekda vacha, terminal var type kara, punha vacha. Tech khara shikna aahe.
Ya book cha plan – aadhi foundation, mag hacking:
Khup students mala vicharatat, "Sir, direct Kali Linux shikvaa na!" Mi nehmi ekach uttar deto – jo system tumhala samjat nahi, to tumhi na hack karu shakta, na secure karu shakta. Mhanun ha book don bhagaat aahe:
| Parts | What you build | Why |
|---|---|---|
| 1–8 | Networking, Linux on EC2, Apache/Nginx, LAMP/LEMP, MySQL, domains and HTTPS, S3 and RDS, and a live reel-style project | You learn how real systems are built and deployed |
| 9 | Bridge chapter | Every earlier topic is mapped to the attacks and defences that come later |
| 10–11 | Kali Linux tools, ethical hacking, OWASP Top 10, cloud security, SOC, hardening, cryptography, cyber law, careers | You attack your own lab and then fix it |
| 12 | Exercises, interview questions, MNC interview questions, cheat sheets, glossary | Revision and job preparation |
Ya book madhe kay kasa dila aahe, te aadhi samjun ghya:
- Technical content English madhech aahe. Commands, code, menu names, tool names aani options agdi jase terminal madhe kiwa AWS console madhe distat tasech thevle aahet –
sudo yum install -y nginx, EC2 › Instances › Launch instance,nmap -sV. Job madhe aani interview madhe tumhi hech shabd vaparnar aahat. - Marathi arth (Devanagari madhe) fakt kathin shabdansathi. Jithe ekhada avghad kiwa abstract shabd pahilyanda yeto, tithe bracket madhe tyacha Marathi arth dila aahe – udaharanartha encryption (कूटबद्धीकरण), vulnerability (कमकुवत जागा), authentication (ओळख पडताळणी). File, folder, server, port, website, table, password, command ase roj vaparle jaanare shabd English madhech vapra – tyanna arth dila nahi.
- Pratyek chapter chi suruvat aani shevat. Suruvatila chhoti olakh ("Chala mitrano, aaj aapan..."), aani shevti Thodkyaat sangaycha tar recap box aani ek check line. Revision kartana fakt he recap boxes vachle tari khup madat hote.
- Pratyek numbered section madhe: explanation, commands kiwa steps, ek jambhla (purple) Ravindra Bagale's Tip box – tya topic madhe khup students konti chuk kartat aani ti kashi talaychi – aani shevti Practice task kiwa Lab.
- Part 1 madhe "Why this matters for security" box pratyek topic sathi aahe – networking cha pratyek concept pudhe konta attack kiwa defence banto, te tithech kalel.
- Interview answers English madhe. Part 12 madhli model answers muddam clean professional English madhe aahet, karan interview English madhech hota.
- Glossary madhe pratyek term sobat Marathi arth column aahe. Standard English shabdansathi "— (English madhech vapra)" asa lihila aahe.
Conventions used in this book
| You see | Meaning |
|---|---|
sudo yum install -y nginx |
Type exactly this in the terminal (Amazon Linux 2023) |
sudo apt install -y nginx |
Same task on Ubuntu |
sudo service nginx reload |
Day-to-day service control (start, stop, restart, reload, status) |
sudo systemctl enable nginx |
Only to start a service automatically at boot |
sudo nginx -t / sudo apachectl configtest |
Always test a config before reload |
| EC2 › Security Groups › Edit inbound rules | Console menu path (the AWS UI may vary slightly over time) |
<PUBLIC_IP>, yourdomain.com |
Replace with your own value |
203.0.113.10, 198.51.100.7, example.com |
Documentation-only addresses and domains used as examples |
192.168.56.0/24 |
The private host-only network of your practice lab |
Legal and ethical rule – read this before Part 10
Every scanning, cracking or exploitation command in this book is to be run only against your own practice lab (Kali, Metasploitable 2, DVWA, OWASP Juice Shop on a host-only network) or against a system for which you hold written permission. Scanning or attacking anyone else's system is an offence under the IT Act, 2000. Mitrano, he khup important aahe, lakshat theva.
Fictional examples
Names used in examples (Ravindra Bagale, Shraddha Bagale, Ruhi Bagale, Shahrukh, Amir, Salman, Zoya, Ravina, Raja, Rani) and the cities (Pune, Nashik, Nagpur, Kolhapur, Solapur, Sambhaji Nagar) are only for practice data. No price of any AWS service, domain or certification is given, because prices change – always check the official site.
Chala tar mag, suru karuya! Roj thoda vacha, roj thoda type kara – cyber security nakki yeil.