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Informationen zum Autor CHRIS BINNIE is a Technical Consultant with 20 years of experience working with Linux systems, and a writer for Linux Magazine and Admin Magazine. He built an Autonomous System Network in 2005, and served HD video to 77 countries via a media streaming platform that he architected and built. Over the course of his career, he has deployed many servers in the cloud and on banking and government server estates. Klappentext Learn how to attack and defend the world's most popular web server platformLinux Server Security: Hack and Defend presents a detailed guide for experienced admins, aspiring hackers and other IT professionals seeking a more advanced understanding of Linux security. Written by a 20-year veteran of Linux server deployment this book provides the insight of experience along with highly practical instruction.The topics range from the theory of past, current, and future attacks, to the mitigation of a variety of online attacks, all the way to empowering you to perform numerous malicious attacks yourself (in the hope that you will learn how to defend against them). By increasing your understanding of a hacker's tools and mindset you're less likely to be confronted by the all-too-common reality faced by many admins these days: someone else has control of your systems.* Master hacking tools and launch sophisticated attacks: perform SQL injections, deploy multiple server exploits and crack complex passwords.* Defend systems and networks: make your servers invisible, be confident of your security with penetration testing and repel unwelcome attackers.* Increase your background knowledge of attacks on systems and networks and improve all-important practical skills required to secure any Linux server.The techniques presented apply to almost all Linux distributions including the many Debian and Red Hat derivatives and some other Unix-type systems. Further your career with this intriguing, deeply insightful, must-have technical book. Diverse, broadly-applicable and hands-on practical, Linux Server Security: Hack and Defend is an essential resource which will sit proudly on any techie's bookshelf. Zusammenfassung Learn how to attack and defend the world s most popular web server platform Linux Server Security: Hack and Defend presents a detailed guide for experienced admins, aspiring hackers and other IT professionals seeking a more advanced understanding of Linux security. Inhaltsverzeichnis Preface xiii Introduction xv Chapter 1: Invisibility Cloak 1 Background 1 Probing Ports 1 Confusing a Port Scanner 2 Installing knockd 2 Packages 3 Changing Default Settings 3 Altering Filesystem Locations 4 Some Config Options 5 Starting the Service 5 Changing the Default Network Interface 5 Packet Types and Timing 5 Testing Your Install 6 Port Knocking Clients 7 Making Your Server Invisible 7 Testing Your iptables 8 Saving iptables Rules 9 Further Considerations 10 Smartphone Client 10 Troubleshooting 10 Security Considerations 10 Ephemeral Sequences 11 Summary 12 Chapter 2: Digitally Fingerprint Your Files 13 Filesystem Integrity 13 Whole Filesystem 16 Rootkits 17 Confi guration 19 False Positives 21 Well Designed 22 Summary 23 Chapter 3: Twenty-First-Century Netcat 25 History 25 Installation Packages 27 Getting Started 27 Transferring Files 29 Chatting Example 30 Chaining Commands Together 30 Secure Communications 31 Executables 33 Access Control Lists 34 Miscellaneous Options 34 Summary 35 Chapter 4: Denying Service 37 NTP Infrastructure 37 NTP Reflection Attacks 38 Attack Reporting 40 P...
