Originally released in 1996, Netcat is a netowrking program designed to read and write data across both Transmission Control Protocol TCP and User Datagram Protocol (UDP) connections using the TCP/Internet Protocol (IP) protocol suite. Netcat is often referred to as a "Swiss Army knife" utility, and for good reason. Just like the multi-function usefullness of the venerable Swiss Army pocket knife, Netcat's functionality is helpful as both a standalone program and a backe-end tool in a wide range of applications. Some of the many uses of Netcat include port scanning, transferring files, grabbing banners, port listening and redirection, and more nefariously, a backdoor. This is the only book dedicated to comprehensive coverage of the tool's many features, and by the end of this book, you'll discover how Netcat can be one of the most valuable tools in your arsenal.* Get Up and Running with Netcat Simple yet powerful...Don't let the trouble-free installation and the easy command line belie the fact that Netcat is indeed a potent and powerful program. * Go PenTesting with Netcat Master Netcat's port scanning and service identification capabilities as well as obtaining Web server application information. Test and verify outbound firewall rules and avoid detection by using antivirus software and the Window Firewall. Also, create a backdoor using Netcat. * Conduct Enumeration and Scanning with Netcat, Nmap, and More! Netcat's not the only game in town...Learn the process of network of enumeration and scanning, and see how Netcat along with other tools such as Nmap and Scanrand can be used to thoroughly identify all of the assets on your network. * Banner Grabbing with Netcat Banner grabbing is a simple yet highly effective method of gathering information about a remote target, and can be performed with relative ease with the Netc
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About the Author
Jan Kanclirz Jr. (CCIE #12136-Security, CCSP, CCNP, CCIP, CCNA, CCDA, INFOSEC Professional, Cisco WLAN Support/Design Specialist) is currently a Senior Network Information Security Architect at IBM Global Services. Jan specializes in multi vendor designs and post-sale implementations for several technologies such as VPNs, IPS/IDS, LAN/WAN, firewalls, content networking, wireless and VoIP. Beyond network designs and engineering Jan’s background includes extensive experience with open source applications and Linux. Jan has contributed to several Syngress book titles: Managing and Securing Cisco SWAN, Practical VoIP Security and How to Cheat at Securing a Wireless Network.
In addition to Jan’s full-time position at IBM G.S., Jan runs a security portal www.MakeSecure.com, where he dedicates his time to security awareness and consulting. Jan lives in Colorado, where he enjoys outdoor adventures.
Table of ContentsOverview of Netcat
Installation and Configuration
Netcat's 101 uses
Socat = Netcat++