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Hardening Linux: Volume 0
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Kurzbeschreibung
"Hardening" is the process of protecting a system and its applications against unknown threats. And Hardening Linux will explain the main steps that any Network or Systems Administrator needs to take, to protect his computers that run on Linux. This book discusses security of mail servers, web servers, and file servers, as well as hardening IP tables and remote access functionality. Written in a similar manner to Hardening Windows and Hardening Apache, complete with checklists and reference-style chapters, Hardeing Linux shows Apress’ commitment to publishing books that appeal to the security professional.
Synopsis
"Hardening" is the process of protecting a system and its applications against unknown threats. Hardening Linux identifies many of the risks of running Linux hosts and applications and provides practical examples and methods to minimize those risks. The book is written for Linux/UNIX administrators who do not necessarily have in-depth knowledge of security but need to know how to secure their networks. In this book, you'll learn how to secure: The base operating system and firewall with iptables Connections to your hosts Fie systems and files Email servers IMAP and POP servers FTP servers A quick reference of the procedures discussed in each chapter are summarized in Appendix C.
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Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis
Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis
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It covers the ground,
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Rezension bezieht sich auf: Hardening Linux (Taschenbuch)
This book fully covers the ground in securing a Linux system. Hardening Linux by James Turnbull (who also authored Pro Nagios 2.0) packs all you need to know about getting a Linux system secured into a single five-hundred page volume.Turnbull takes the reader in a fast-paced but very comprehensive fashion through the arduous tasks of closing up the open holes in a Red-Hat or Debian based Linux distribution, and he covers all major topics which include unlikely candidates such as the virtual terminals on the console, immutable files and capabilities, system logging, rootkits, and penetration detection and recovery. After reading up on the basics which include users & passwords, Pluggable Authentication Modules (PAM), and information on hardening the Linux kernel and the boot loaders, the reader gets an excellent introduction to firewalling with iptables with a whole firewall script for a bastion host in the appendix. That is followed by a full chapter devoted to securing connections with SSL/TLS and remote administration with ssh. Chapter four is dedicated to securing files and file systems, and includes a section on encrypted file systems to safekeep your data, as well as a walk-through Tripwire. That is followed by a comprehensive look at logging with syslog and syslog-ng, and this chapter includes a discussion and tools related to log analysis and correlation. NMAP, Nessus and network sniffers make up the bulk of the security testing tools with which Turnbull rightly suggests we check our work after having hardened the basic system. These are covered on fourty pages. Although Mr. Turnbull recommends Postfix, he covers both that and Sendmail, carefully noting that he doesn't want to contribute to the "my mail server is better than yours" wars. On over fifty pages, the two mail transport agents (MTA) are given careful consideration as to making them as secure as possible. In a further chapter aptly titled Authenticating and Securing Your Mail, the author covers SSL/TLS certificate generation with OpenSSL as well as SMTP authentication (SMTP AUTH) with Cyrus SASL, for both flavors of mail server. As far as access to mail is concerned, the Cyrus IMAP server is well documented in chapter nine, and the last two chapters guide the reader through securing FTP servers as well as the BIND name server. Every person responsible for installing a Linux server must read this book! There is of course also detailed information to be gathered from dedicated books which cover the individual subsystems (such as those for DNS & BIND, OpenSSH, etc.), but I strongly encourage every system administrator to have a copy of this excellent book on his or her desk. Helfen Sie anderen Kunden bei der Suche nach den hilfreichsten Rezensionen
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