KALI LINUX RECON: Master Reconnaissance, Attack Surface Mapping and EnumerationThis book presents a practical approach to reconnaissance, enumeration, and attack surface mapping using Kali Linux as the analysis platform. Designed for cybersecurity students and professionals, the content covers asset discovery, DNS, subdomains, TLS certificates, IP infrastructure, ports, services, web applications, APIs, cloud, and corporate environments, always within authorized contexts.The book explores widely used recon tools such as Nmap, Masscan, Naabu, Subfinder, Amass, dnsx, httpx, and Katana, as well as OpenSSL, curl, jq, Bash, and Python. It also covers Certificate Transparency, RDAP, WHOIS, ASN, BGP, virtual hosts, service fingerprinting, crawling, JavaScript, containers, Docker, Kubernetes, DevOps, pipeline automation, JSON, JSONL, data correlation, Asset Graph, and continuous reconnaissance.You will learn to: *Define scope and organize the target universe * Enumerate subdomains and validate DNS records * Use Certificate Transparency and TLS certificates for asset discovery * Map IP infrastructure with RDAP, WHOIS, ASN, and BGP * Discover hosts and ports with Nmap, Masscan, and Naabu * Identify services, technologies, virtual hosts, and web applications * Map endpoints, JavaScript, and APIs with httpx and Katana * Recognize cloud resources, identity, containers, and Kubernetes * Automate collections with Bash, Python, jq, JSON, and JSONL * Correlate results and build an Asset Graph * Compare baselines and identify changes in the attack surfaceThe content organizes the techniques into a sequence that begins with discovery and advances through validation, fingerprinting, automation, and correlation. The objective is to serve as study and reference material for those seeking to improve their knowledge of reconnaissance, information gathering, and attack surface mapping with Kali Linux.
