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      1. Data och IT
      2. Nätverk och kommunikation

      Linux Hardening in Hostile Networks

      Server Security from TLS to Tor

      AvKyle Rankin

      Häftad, Engelska, 2017

      Del i serien Pearson Open Source Software Development Series

      274 kr

      Beställningsvara. Skickas inom 7-10 vardagar. Fri frakt över 249 kr.

      Beskrivning

      Implement Industrial-Strength Security on Any Linux Server

      In an age of mass surveillance, when advanced cyberwarfare weapons rapidly migrate into every hacker’s toolkit, you can’t rely on outdated security methods–especially if you’re responsible for Internet-facing services. In Linux® Hardening in Hostile Networks, Kyle Rankin helps you to implement modern safeguards that provide maximum impact with minimum effort and to strip away old techniques that are no longer worth your time.

      Rankin provides clear, concise guidance on modern workstation, server, and network hardening, and explains how to harden specific services, such as web servers, email, DNS, and databases. Along the way, he demystifies technologies once viewed as too complex or mysterious but now essential to mainstream Linux security. He also includes a full chapter on effective incident response that both DevOps and SecOps can use to write their own incident response plan.

      Each chapter begins with techniques any sysadmin can use quickly to protect against entry-level hackers and presents intermediate and advanced techniques to safeguard against sophisticated and knowledgeable attackers, perhaps even state actors. Throughout, you learn what each technique does, how it works, what it does and doesn’t protect against, and whether it would be useful in your environment.

      • Apply core security techniques including 2FA and strong passwords
      • Protect admin workstations via lock screens, disk encryption, BIOS passwords, and other methods
      • Use the security-focused Tails distribution as a quick path to a hardened workstation
      • Compartmentalize workstation tasks into VMs with varying levels of trust
      • Harden servers with SSH, use apparmor and sudo to limit the damage attackers can do, and set up remote syslog servers to track their actions
      • Establish secure VPNs with OpenVPN, and leverage SSH to tunnel traffic when VPNs can’t be used
      • Configure a software load balancer to terminate SSL/TLS connections and initiate new ones downstream
      • Set up standalone Tor services and hidden Tor services and relays
      • Secure Apache and Nginx web servers, and take full advantage of HTTPS
      • Perform advanced web server hardening with HTTPS forward secrecy and ModSecurity web application firewalls
      • Strengthen email security with SMTP relay authentication, SMTPS, SPF records, DKIM, and DMARC
      • Harden DNS servers, deter their use in DDoS attacks, and fully implement DNSSEC
      • Systematically protect databases via network access control, TLS traffic encryption, and encrypted data storage
      • Respond to a compromised server, collect evidence, and prevent future attacks

      Register your product at informit.com/register for convenient access to downloads, updates, and corrections as they become available.

      Produktinformation

      • Utgivningsdatum:2017-08-23
      • Mått:179 x 20 x 234 mm
      • Vikt:380 g
      • Format:Häftad
      • Språk:Engelska
      • Serie:Pearson Open Source Software Development Series
      • Antal sidor:272
      • Upplaga:1
      • Förlag:Pearson Education
      • ISBN:9780134173269

      Utforska kategorier

      • Nätverk och kommunikation inom Data och IT
      • Operativsystem inom Data och IT

      Mer om författaren

      Kyle Rankin is the vice president of engineering operations for Final, Inc.; the author of DevOps Troubleshooting, The Official Ubuntu Server Book, Knoppix Hacks, Knoppix Pocket Reference, Linux Multimedia Hacks, and Ubuntu Hacks; and a contributor to a number of other books. Rankin is an award-winning columnist for Linux Journal and has written for PC Magazine, TechTarget websites, and other publications. He speaks frequently on Open Source software, including a keynote at SCALE 11x and numerous other talks at SCALE, O’Reilly Security Conference, OSCON, CactusCon, Linux World Expo, Penguicon, and a number of Linux Users’ Groups. In his free time Kyle does much of what he does at work—plays with Linux and computers in general. He’s also interested in brewing, BBQing, playing the banjo, 3D printing, and far too many other hobbies.

      Innehållsförteckning

      • Foreword xiiiPreface xvAcknowledgments xxiiiAbout the Author xxvChapter 1: Overall Security Concepts 1Section 1: Security Fundamentals 1Section 2: Security Practices Against a Knowledgeable Attacker 10Section 3: Security Practices Against an Advanced Attacker 20Summary 24Chapter 2: Workstation Security 25Section 1: Security Fundamentals 25Section 2: Additional Workstation Hardening 33Section 3: Qubes 37Summary 52Chapter 3: Server Security 53Section 1: Server Security Fundamentals 53Section 2: Intermediate Server-Hardening Techniques 58Section 3: Advanced Server-Hardening Techniques 68Summary 74Chapter 4: Network 75Section 1: Essential Network Hardening 76Section 2: Encrypted Networks 87Section 3: Anonymous Networks 100Summary 107Chapter 5: Web Servers 109Section 1: Web Server Security Fundamentals 109Section 2: HTTPS 113Section 3: Advanced HTTPS Configuration 118Summary 131Chapter 6: Email 133Section 1: Essential Email Hardening 133Section 2: Authentication and Encryption 137Section 3: Advanced Hardening 141Summary 156Chapter 7: DNS 157Section 1: DNS Security Fundamentals 158Section 2: DNS Amplification Attacks and Rate Limiting 161Section 3: DNSSEC 166Summary 175Chapter 8: Database 177Section 1: Database Security Fundamentals 177Section 2: Database Hardening 185Section 3: Database Encryption 191Summary 195Chapter 9: Incident Response 197Section 1: Incident Response Fundamentals 197Section 2: Secure Disk Imaging Techniques 200Section 3: Walk Through a Sample Investigation 209Summary 214Appendix A: Tor 215What Is Tor? 215How Tor Works 216Security Risks 219Appendix B: SSL/TLS 221What Is TLS? 221How TLS Works 222TLS Troubleshooting Commands 224Security Risks 224Index 229
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