Snort gives network administrators an open source intrusion detection system that outperforms proprietary alternatives. Now, Rafeeq Ur Rehman explains and simplifies every aspect of deploying and managing Snort in your network. You'll discover how to monitor all...

The UNIX shell is the main scripting environment of every Linux, Mac OS X and UNIX system, whether a rescued laptop or a million-dollar mainframe. This cookbook of...

The OpenSSH suite of tools provides replacements for some of the common administrative tools used today such as telnet, FTP and the r-utilities; yet, these tools, considered insecure because they use clear-text communication over the network, are in still in common use. OpenSSH provides an encrypted channel between computers and remote servers...

This comprehensive book takes you step-by-step through the process of writing shell scripts to solve real-world Unix problems and tasks. Each chapter begins by presenting a typical Unix challenge that you’ll most likely...

Objective certification of professionals is a time-honored tradition in many fields, including medicine and law. As small computer systems and networks proliferated over the last decade, Novell and Microsoft produced extremely popular certification products for their respective operating system and network technologies. These...

Every day, patches are created to cover up security holes in software applications and operating systems. But by the time you download a patch, it could be too late. A hacker may have already taken advantage of the hole and wreaked havoc on your system. This...

–Halvar Flake, CEO and head of research,...

Tcl/Tk 8.2 is the first scripting language that can handle enterprise-wide integration tasks that encompass Windows, Solaris, Macintosh, and other key platforms. Now, in this fully updated Third Edition, Tcl/Tk development team member and best-selling...

TCP/IP Illustrated is a complete and detailed guide to the entire TCP/IP protocol suite-with an important difference from other books on the subject. Rather than just describing what the RFCs say the protocol suite should do, this unique book uses a popular diagnostic tool so you may actually watch the protocols in action.By...