SSH, The Secure Shell

Author: Daniel J. Barrett
Publisher: "O'Reilly Media, Inc."
ISBN: 0596008953
Category : Computers
Languages : en
Pages : 666

Book Description
Are you serious about network security? Then check out SSH, the Secure Shell, which provides key-based authentication and transparent encryption for your network connections. It's reliable, robust, and reasonably easy to use, and both free and commercial implementations are widely available for most operating systems. While it doesn't solve every privacy and security problem, SSH eliminates several of them very effectively. Everything you want to know about SSH is in our second edition of SSH, The Secure Shell: The Definitive Guide. This updated book thoroughly covers the latest SSH-2 protocol for system administrators and end users interested in using this increasingly popular TCP/IP-based solution. How does it work? Whenever data is sent to the network, SSH automatically encrypts it. When data reaches its intended recipient, SSH decrypts it. The result is "transparent" encryption-users can work normally, unaware that their communications are already encrypted. SSH supports secure file transfer between computers, secure remote logins, and a unique "tunneling" capability that adds encryption to otherwise insecure network applications. With SSH, users can freely navigate the Internet, and system administrators can secure their networks or perform remote administration. Written for a wide, technical audience, SSH, The Secure Shell: The Definitive Guide covers several implementations of SSH for different operating systems and computing environments. Whether you're an individual running Linux machines at home, a corporate network administrator with thousands of users, or a PC/Mac owner who just wants a secure way to telnet or transfer files between machines, our indispensable guide has you covered. It starts with simple installation and use of SSH, and works its way to in-depth case studies on large, sensitive computer networks. No matter where or how you're shipping information, SSH, The Secure Shell: The Definitive Guide will show you how to do it securely.

Implementing SSH

Author: Himanshu Dwivedi
Publisher: John Wiley & Sons
ISBN: 0764557254
Category : Computers
Languages : en
Pages : 404

Book Description
A tactical guide to installing, implementing, optimizing, and supporting SSH in order to secure your network Prevent unwanted hacker attacks! This detailed guide will show you how to strengthen your company system's defenses, keep critical data secure, and add to the functionality of your network by deploying SSH. Security expert Himanshu Dwivedi shows you ways to implement SSH on virtually all operating systems, desktops, and servers, so your system is safe, secure, and stable. Learn how SSH fulfills all the core items in security, including authentication, authorization, encryption, integrity, and auditing. Also, discover methods to optimize the protocol for security and functionality on Unix, Windows, and network architecture environments. Additionally, find out about the similarities and differences of the major SSH servers and clients. With the help of numerous architectural examples and case studies, you'll gain the necessary skills to: * Explore many remote access solutions, including the theory, setup, and configuration of port forwarding * Take advantage of features such as secure e-mail, proxy, and dynamic port forwarding * Use SSH on network devices that are traditionally managed by Telnet * Utilize SSH as a VPN solution in both a server and client aspect * Replace insecure protocols such as Rsh, Rlogin, and FTP * Use SSH to secure Web browsing and as a secure wireless (802.11) solution

PfSense 2 Cookbook

Author: Matt Williamson
Publisher: Packt Publishing Ltd
ISBN: 1849514879
Category : Computers
Languages : en
Pages : 292

Book Description
Master Wicket by example by implementing real-life solutions to every day tasks.

SSH Mastery

Author: Michael Lucas
Publisher: Createspace Independent Publishing Platform
ISBN: 9781470069711
Category : Computer networks
Languages : en
Pages : 0

Book Description
Secure Shell (SSH) lets systems administrators securely manage remote systems. But most people only use the bare minimum SSH offers. Used properly, SSH simplifies your job. This book saves you from sifting a decade of obsolete online tutorials and quickly gets you running: SSH with the OpenSSH server and the PuTTY and OpenSSH clients. You will: Eliminate passwords. Manage access to your SSH server by users, groups, addresses, and more Securely move files around your network Forward graphic displays from one host to another Forward TCP connections Centrally manage host keys and client configurations Use SSH as a secure transport for other applications Secure applications run over SSH Build Virtual Private Networks with OpenSSH And more! This book simplifies the work of anyone using SSH. Small enough to read and implement quickly, exhaustive enough to include everything most of us need plus a little more. Master SSH with SSH Mastery.

Linux Pocket Guide

Author: Daniel J. Barrett
Publisher: "O'Reilly Media, Inc."
ISBN: 1449379001
Category : Computers
Languages : en
Pages : 201

Book Description
O'Reilly's Pocket Guides have earned a reputation as inexpensive, comprehensive, and compact guides that have the stuff but not the fluff. Every page of Linux Pocket Guide lives up to this billing. It clearly explains how to get up to speed quickly on day-to-day Linux use. Once you're up and running, Linux Pocket Guide provides an easy-to-use reference that you can keep by your keyboard for those times when you want a fast, useful answer, not hours in the man pages.Linux Pocket Guide is organized the way you use Linux: by function, not just alphabetically. It's not the 'bible of Linux; it's a practical and concise guide to the options and commands you need most. It starts with general concepts like files and directories, the shell, and X windows, and then presents detailed overviews of the most essential commands, with clear examples. You'll learn each command's purpose, usage, options, location on disk, and even the RPM package that installed it.The Linux Pocket Guide is tailored to Fedora Linux--the latest spin-off of Red Hat Linux--but most of the information applies to any Linux system.Throw in a host of valuable power user tips and a friendly and accessible style, and you'll quickly find this practical, to-the-point book a small but mighty resource for Linux users.

CompTIA Security+ All-in-One Exam Guide (Exam SY0-301), 3rd Edition

Author: Gregory White
Publisher: McGraw Hill Professional
ISBN: 0071771441
Category : Computers
Languages : en
Pages : 705

Book Description
Official CompTIA Content! Prepare for CompTIA Security+ Exam SY0-301 with McGraw-Hill—a Gold-Level CompTIA Authorized Partner offering Official CompTIA Approved Quality Content to give you the competitive edge on exam day. Get complete coverage of all the objectives included on CompTIA Security+ exam inside this completely updated, comprehensive volume. Written by leading network security experts, this definitive guide covers exam SY0-301 in full detail. You'll find learning objectives at the beginning of each chapter, exam tips, practice exam questions, and in-depth explanations. Designed to help you pass the exam with ease, this practical resource also serves as an essential on-the-job reference. Covers all exam topics, including: General security concepts Operational organizational security Legal issues, privacy, and ethics Cryptography Public key infrastructure Standards and protocols Physical security Infrastructure security Remote access and authentication Intrusion detection systems Security baselines Types of attacks and malicious software E-mail and instant messaging Web components Disaster recovery and business continuity Risk, change, and privilege management Computer forensics Electronic content includes two full practice exams

Mastering Unix Shell Scripting

Author: Randal K. Michael
Publisher: Wiley
ISBN: 9780471218210
Category : Computers
Languages : en
Pages : 708

Book Description
Provides readers with end-to-end shell scripts that can be used to automate repetitive tasks and solve real-world system administration problems Targets the specific command structure for four popular UNIX systems: Solaris, Linux, AIX, and HP-UX Illustrates dozens of example tasks, presenting the proper command syntax and analyzing the performance gain or loss using various control structure techniques Web site includes all the shell scripts used in the book

Communication System Security

Author: Lidong Chen
Publisher: CRC Press
ISBN: 1439840369
Category : Computers
Languages : en
Pages : 752

Book Description
Helping current and future system designers take a more productive approach in the field, Communication System Security shows how to apply security principles to state-of-the-art communication systems. The authors use previous design failures and security flaws to explain common pitfalls in security design. Divided into four parts, the book begins with the necessary background on practical cryptography primitives. This part describes pseudorandom sequence generators, stream and block ciphers, hash functions, and public-key cryptographic algorithms. The second part covers security infrastructure support and the main subroutine designs for establishing protected communications. The authors illustrate design principles through network security protocols, including transport layer security (TLS), Internet security protocols (IPsec), the secure shell (SSH), and cellular solutions. Taking an evolutionary approach to security in today’s telecommunication networks, the third part discusses general access authentication protocols, the protocols used for UMTS/LTE, the protocols specified in IETF, and the wireless-specific protection mechanisms for the air link of UMTS/LTE and IEEE 802.11. It also covers key establishment and authentication in broadcast and multicast scenarios. Moving on to system security, the last part introduces the principles and practice of a trusted platform for communication devices. The authors detail physical-layer security as well as spread-spectrum techniques for anti-jamming attacks. With much of the material used by the authors in their courses and drawn from their industry experiences, this book is appropriate for a wide audience, from engineering, computer science, and mathematics students to engineers, designers, and computer scientists. Illustrating security principles with existing protocols, the text helps readers understand the principles and practice of security analysis.

Building Secure Servers with Linux

Author: Michael D. Bauer
Publisher: "O'Reilly Media, Inc."
ISBN: 9780596002176
Category : Computers
Languages : en
Pages : 440

Book Description
Linux consistently turns up high in the list of popular Internet servers, whether it's for the Web, anonymous FTP, or general services like DNS and routing mail. But security is uppermost on the mind of anyone providing such a service. Any server experiences casual probe attempts dozens of time a day, and serious break-in attempts with some frequency as well. As the cost of broadband and other high-speed Internet connectivity has gone down, and its availability has increased, more Linux users are providing or considering providing Internet services such as HTTP, Anonymous FTP, etc., to the world at large. At the same time, some important, powerful, and popular Open Source tools have emerged and rapidly matured--some of which rival expensive commercial equivalents--making Linux a particularly appropriate platform for providing secure Internet services. Building Secure Servers with Linux will help you master the principles of reliable system and network security by combining practical advice with a firm knowledge of the technical tools needed to ensure security. The book focuses on the most common use of Linux--as a hub offering services to an organization or the larger Internet--and shows readers how to harden their hosts against attacks. Author Mick Bauer, a security consultant, network architect, and lead author of the popular Paranoid Penguin column in Linux Journal, carefully outlines the security risks, defines precautions that can minimize those risks, and offers recipes for robust security. The book does not cover firewalls, but covers the more common situation where an organization protects its hub using other systems as firewalls, often proprietary firewalls. The book includes: Precise directions for securing common services, including the Web, mail, DNS, and file transfer. Ancillary tasks, such as hardening Linux, using SSH and certificates for tunneling, and using iptables for firewalling. Basic installation of intrusion detection tools. Writing for Linux users with little security expertise, the author explains security concepts and techniques in clear language, beginning with the fundamentals. Building Secure Servers with Linux provides a unique balance of "big picture" principles that transcend specific software packages and version numbers, and very clear procedures on securing some of those software packages. An all-inclusive resource for Linux users who wish to harden their systems, the book covers general security as well as key services such as DNS, the Apache Web server, mail, file transfer, and secure shell. With this book in hand, you'll have everything you need to ensure robust security of your Linux system.

Pro OpenSSH

Author: Michael Stahnke
Publisher: Apress
ISBN: 1590594762
Category : Computers
Languages : en
Pages : 313

Book Description
SSH, or Secure Shell, is the de facto standard among users and administrators who wish to establish secure communication between disparate networks. This book is authored by a Fortune 100 system administrator, who will provide you with a highly practical reference for configuring and deploying OpenSSH in your own environment. Some of the topics covered in this book include: OpenSSH installation and configuration, key management, secure logging, client/server architectures, and digital certificates. The author also provides you with complete deployment scenarios that arise daily in enterprise environments, both large and small. Table of Contents Legacy Protocols: Why Replace Telnet, FTP, rsh, rcp, and rlogin with SSH? A Quick SSH Implementation The File Structure of OpenSSH The OpenSSH Server The OpenSSH Client Authentication Advanced Topics TCP Forwarding Managing Your OpenSSH Environment Scripting with OpenSSH SSH Tectia Server