Exercises — Week 2: OSI Model, Reconnaissance, and Network Discovery
1 hands-on tasks. Do them in order; each one feeds the Canvas item it names.
45 min · lab
1. OSINT Profile (Authorized Target Only)
- Using only passive techniques against the authorized lab target domain provided in Canvas:
- 1. Perform a WHOIS lookup — record the registrant, nameservers, and expiry date.
- 2. Query three DNS record types (A, MX, NS minimum) using dig or nslookup.
- 3. Identify one technology clue from a public job posting or LinkedIn page.
- Document each finding and its source.
Turn in / bring: Reconnaissance worksheet submitted to Canvas Week 2 Lab assignment.