Nmap in the Enterprise: Your Guide to Network Scanning

Nmap, or Network Mapper, is a free, open source tool that is available under the GNU General Public License as published by the Free Software Foundation. It is most often used by network administrators and IT security professionals to scan corporate networks, looking for live hosts, specific services, or specific operating systems. Part of the beauty of Nmap is its ability to create IP packets from scratch and send them out utilizing unique methodologies to perform the above-mentioned types of scans and more. This book provides comprehensive coverage of all Nmap features, including detailed, real-world case studies.

. Understand Network Scanning
Master networking and protocol fundamentals, network scanning techniques, common network scanning tools, along with network scanning and policies.
. Get Inside Nmap
Use Nmap in the enterprise, secure Nmap, optimize Nmap, and master advanced Nmap scanning techniques.
. Install, Configure, and Optimize Nmap
Deploy Nmap on Windows, Linux, Mac OS X, and install from source.
. Take Control of Nmap with the Zenmap GUI
Run Zenmap, manage Zenmap scans, build commands with the Zenmap command wizard, manage Zenmap profiles, and manage Zenmap results.
. Run Nmap in the Enterprise
Start Nmap scanning, discover hosts, port scan, detecting operating systems, and detect service and application versions
. Raise those Fingerprints
Understand the mechanics of Nmap OS fingerprinting, Nmap OS fingerprint scan as an administrative tool, and detect and evade the OS fingerprint scan.
. "Tool" around with Nmap
Learn about Nmap add-on and helper tools: NDiff--Nmap diff, RNmap--Remote Nmap, Bilbo, Nmap-parser.
. Analyze Real-World Nmap Scans
Follow along with the authors to analyze real-world Nmap scans.
. Master Advanced Nmap Scanning Techniques
Torque Nmap for TCP scan flags customization, packet fragmentation, IP and MAC address spoofing, adding decoy scan source IP addresses, add random data to sent packets, manipulate time-to-live fields, and send packets with bogus TCP or UDP checksums.

Nmap，或稱為Network Mapper，是一個免費、開源的工具，根據自由軟體基金會發布的GNU通用公共許可證提供。它通常被網路管理員和IT安全專業人員使用，用於掃描企業網路，尋找活躍的主機、特定服務或特定作業系統。Nmap的優點之一是它能夠從頭開始創建IP封包並使用獨特的方法進行上述類型的掃描和更多功能。本書全面介紹了Nmap的所有功能，包括詳細的實際案例研究。

- 瞭解網路掃描：掌握網路和協議基礎知識、網路掃描技術、常見的網路掃描工具，以及網路掃描和策略。
- 深入研究Nmap：在企業中使用Nmap、保護Nmap、優化Nmap，並掌握高級Nmap掃描技術。
- 安裝、配置和優化Nmap：在Windows、Linux、Mac OS X上部署Nmap，並從源碼安裝。
- 使用Zenmap GUI掌握Nmap：運行Zenmap、管理Zenmap掃描、使用Zenmap命令向導建立命令、管理Zenmap配置文件和結果。
- 在企業中運行Nmap：開始Nmap掃描、發現主機、埠掃描、檢測作業系統，以及檢測服務和應用程式版本。
- 探索指紋：瞭解Nmap作業系統指紋掃描的原理，將Nmap作業系統指紋掃描作為管理工具，並檢測和逃避作業系統指紋掃描。
- 使用Nmap的附加工具：了解Nmap的附加工具和輔助工具，包括NDiff（Nmap差異）、RNmap（遠程Nmap）、Bilbo和Nmap-parser。
- 分析真實世界的Nmap掃描：跟隨作者一起分析真實世界的Nmap掃描。
- 掌握高級Nmap掃描技術：調整Nmap的TCP掃描標誌、封包分割、IP和MAC地址欺騙、添加假冒的掃描源IP地址、向發送的封包添加隨機數據、操縱生存時間字段，以及發送帶有虛假TCP或UDP校驗和的封包。