Pluggable Authentication Modules

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Practical UNIX and Internet Security

Author : Simson Garfinkel
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449310125
Total Pages : 989 pages
Book Rating : 4.4/5 (493 download)

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Book Synopsis Practical UNIX and Internet Security by : Simson Garfinkel

Download or read book Practical UNIX and Internet Security written by Simson Garfinkel and published by "O'Reilly Media, Inc.". This book was released on 2003-02-21 with total page 989 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Practical Unix Security was first published more than a decade ago, it became an instant classic. Crammed with information about host security, it saved many a Unix system administrator from disaster. The second edition added much-needed Internet security coverage and doubled the size of the original volume. The third edition is a comprehensive update of this very popular book - a companion for the Unix/Linux system administrator who needs to secure his or her organization's system, networks, and web presence in an increasingly hostile world.Focusing on the four most popular Unix variants today--Solaris, Mac OS X, Linux, and FreeBSD--this book contains new information on PAM (Pluggable Authentication Modules), LDAP, SMB/Samba, anti-theft technologies, embedded systems, wireless and laptop issues, forensics, intrusion detection, chroot jails, telephone scanners and firewalls, virtual and cryptographic filesystems, WebNFS, kernel security levels, outsourcing, legal issues, new Internet protocols and cryptographic algorithms, and much more.Practical Unix & Internet Security consists of six parts: Computer security basics: introduction to security problems and solutions, Unix history and lineage, and the importance of security policies as a basic element of system security. Security building blocks: fundamentals of Unix passwords, users, groups, the Unix filesystem, cryptography, physical security, and personnel security. Network security: a detailed look at modem and dialup security, TCP/IP, securing individual network services, Sun's RPC, various host and network authentication systems (e.g., NIS, NIS+, and Kerberos), NFS and other filesystems, and the importance of secure programming. Secure operations: keeping up to date in today's changing security world, backups, defending against attacks, performing integrity management, and auditing. Handling security incidents: discovering a break-in, dealing with programmed threats and denial of service attacks, and legal aspects of computer security. Appendixes: a comprehensive security checklist and a detailed bibliography of paper and electronic references for further reading and research. Packed with 1000 pages of helpful text, scripts, checklists, tips, and warnings, this third edition remains the definitive reference for Unix administrators and anyone who cares about protecting their systems and data from today's threats.

Pluggable Authentication Modules

Author : Kenneth Geisshirt
Publisher : Packt Publishing
ISBN 13 : 9781904811329
Total Pages : 0 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Pluggable Authentication Modules by : Kenneth Geisshirt

Download or read book Pluggable Authentication Modules written by Kenneth Geisshirt and published by Packt Publishing. This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and practical guide to PAM for Linux: how modules work and how to implement them, covering 11 common modules, and installation of third-party offerings. Also covers developing your own modules in C. First this book explains how Pluggable Authentication Modules (PAM) simplify and standardize authentication in Linux. It shows in detail how PAM works and how it is configured. Then 11 common modules used across UNIX/Linux distributions are examined and explained, including all their parameters. Installation of third-party modules is discussed, and the development of new modules and PAM-aware applications is outlined PAM-aware applications reduce the complexity of authentication. With PAM you can use the same user database for every login process. PAM also supports different authentication processes as required. Moreover, PAM is a well-defined API, and PAM-aware applications will not break if you change the underlying authentication configuration. The PAM framework is widely used by most Linux distributions for authentication purposes. Originating from Solaris 2.6 ten years ago, PAM is used today by most proprietary and free UNIX operating systems including GNU/Linux, FreeBSD, and Solaris, following both the design concept and the practical details. PAM is thus a unifying technology for authentication mechanisms in UNIX. PAM is a modular and flexible authentication management layer that sits between Linux applications and the native underlying authentication system. PAM can be implemented with various applications without having to recompile the applications to specifically support PAM. This book provides a practical approach to UNIX/Linux authentication. The design principles are explained thoroughly, then illustrated through the examination of popular modules. It is intended as a one-stop introduction and reference to PAM. This book is for experienced system administrators and developers working with multiple Linux/UNIX servers or with both UNIX and Windows servers. It assumes a good level of admin knowledge, and that developers are competent in C development on UNIX-based systems.

LDAP System Administration

Author : Gerald Carter
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596551916
Total Pages : 311 pages
Book Rating : 4.5/5 (965 download)

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Book Synopsis LDAP System Administration by : Gerald Carter

Download or read book LDAP System Administration written by Gerald Carter and published by "O'Reilly Media, Inc.". This book was released on 2003-03-20 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Be more productive and make your life easier. That's what LDAP System Administration is all about.System administrators often spend a great deal of time managing configuration information located on many different machines: usernames, passwords, printer configurations, email client configurations, and network filesystem configurations, to name a few. LDAPv3 provides tools for centralizing all of the configuration information and placing it under your control. Rather than maintaining several administrative databases (NIS, Active Directory, Samba, and NFS configuration files), you can make changes in only one place and have all your systems immediately "see" the updated information.Practically platform independent, this book uses the widely available, open source OpenLDAP 2 directory server as a premise for examples, showing you how to use it to help you manage your configuration information effectively and securely. OpenLDAP 2 ships with most Linux® distributions and Mac OS® X, and can be easily downloaded for most Unix-based systems. After introducing the workings of a directory service and the LDAP protocol, all aspects of building and installing OpenLDAP, plus key ancillary packages like SASL and OpenSSL, this book discusses: Configuration and access control Distributed directories; replication and referral Using OpenLDAP to replace NIS Using OpenLDAP to manage email configurations Using LDAP for abstraction with FTP and HTTP servers, Samba, and Radius Interoperating with different LDAP servers, including Active Directory Programming using Net::LDAP If you want to be a master of your domain, LDAP System Administration will help you get up and running quickly regardless of which LDAP version you use. After reading this book, even with no previous LDAP experience, you'll be able to integrate a directory server into essential network services such as mail, DNS, HTTP, and SMB/CIFS.

Pluggable Authentication Modules

Author : Kenneth Geisshirt
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (796 download)

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Book Synopsis Pluggable Authentication Modules by : Kenneth Geisshirt

Download or read book Pluggable Authentication Modules written by Kenneth Geisshirt and published by . This book was released on 2005* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Linux in a Windows World

Author : Roderick W. Smith
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 9780596007584
Total Pages : 500 pages
Book Rating : 4.0/5 (75 download)

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Book Synopsis Linux in a Windows World by : Roderick W. Smith

Download or read book Linux in a Windows World written by Roderick W. Smith and published by "O'Reilly Media, Inc.". This book was released on 2005 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A system administrator's guide to heterogeneous networking"-- Cover.

PAM Mastery

Author : Michael W Lucas
Publisher : Tilted Windmill Press
ISBN 13 :
Total Pages : 183 pages
Book Rating : 4./5 ( download)

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Book Synopsis PAM Mastery by : Michael W Lucas

Download or read book PAM Mastery written by Michael W Lucas and published by Tilted Windmill Press. This book was released on 2016-09-13 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pluggable Authentication Modules: Threat or Menace? PAM is one of the most misunderstood parts of systems administration. Many sysadmins live with authentication problems rather than risk making them worse. PAM’s very nature makes it unlike any other Unix access control system. If you have PAM misery or PAM mysteries, you need PAM Mastery! With PAM Mastery, you’ll understand: · the different versions of PAM · the intricacies of Linux-PAM and OpenPAM · how PAM policies make decisions · how to debug PAM · the most frequently seen PAM modules · Linux-PAM extended controls and substacks · time-based one-time passwords · using SSH keys for more than SSH · password quality testing · policies from CentOS, Debian, and FreeBSD · and more! Transform PAM from a headache to an ally with PAM Mastery.

Linux Security Cookbook

Author : Daniel J. Barrett
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449366767
Total Pages : 335 pages
Book Rating : 4.4/5 (493 download)

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Book Synopsis Linux Security Cookbook by : Daniel J. Barrett

Download or read book Linux Security Cookbook written by Daniel J. Barrett and published by "O'Reilly Media, Inc.". This book was released on 2003-06-02 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer security is an ongoing process, a relentless contest between system administrators and intruders. A good administrator needs to stay one step ahead of any adversaries, which often involves a continuing process of education. If you're grounded in the basics of security, however, you won't necessarily want a complete treatise on the subject each time you pick up a book. Sometimes you want to get straight to the point. That's exactly what the new Linux Security Cookbook does. Rather than provide a total security solution for Linux computers, the authors present a series of easy-to-follow recipes--short, focused pieces of code that administrators can use to improve security and perform common tasks securely.The Linux Security Cookbook includes real solutions to a wide range of targeted problems, such as sending encrypted email within Emacs, restricting access to network services at particular times of day, firewalling a webserver, preventing IP spoofing, setting up key-based SSH authentication, and much more. With over 150 ready-to-use scripts and configuration files, this unique book helps administrators secure their systems without having to look up specific syntax. The book begins with recipes devised to establish a secure system, then moves on to secure day-to-day practices, and concludes with techniques to help your system stay secure.Some of the "recipes" you'll find in this book are: Controlling access to your system from firewalls down to individual services, using iptables, ipchains, xinetd, inetd, and more Monitoring your network with tcpdump, dsniff, netstat, and other tools Protecting network connections with Secure Shell (SSH) and stunnel Safeguarding email sessions with Secure Sockets Layer (SSL) Encrypting files and email messages with GnuPG Probing your own security with password crackers, nmap, and handy scripts This cookbook's proven techniques are derived from hard-won experience. Whether you're responsible for security on a home Linux system or for a large corporation, or somewhere in between, you'll find valuable, to-the-point, practical recipes for dealing with everyday security issues. This book is a system saver.

Fedora Linux

Author : Chris Tyler
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596529740
Total Pages : 658 pages
Book Rating : 4.5/5 (965 download)

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Book Synopsis Fedora Linux by : Chris Tyler

Download or read book Fedora Linux written by Chris Tyler and published by "O'Reilly Media, Inc.". This book was released on 2006-10-17 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neither a Starting Linux book nor a dry reference manual, this book has a lot to offer to those coming to Fedora from other operating systems or distros. -- Behdad Esfahbod, Fedora developer This book will get you up to speed quickly on Fedora Linux, a securely-designed Linux distribution that includes a massive selection of free software packages. Fedora is hardened out-of-the-box, it's easy to install, and extensively customizable - and this book shows you how to make Fedora work for you. Fedora Linux: A Complete Guide to Red Hat's Community Distribution will take you deep into essential Fedora tasks and activities by presenting them in easy-to-learn modules. From installation and configuration through advanced topics such as administration, security, and virtualization, this book captures the important details of how Fedora Core works--without the fluff that bogs down other books and help/how-to web sites. Instead, you can learn from a concise task-based approach to using Fedora as both a desktop and server operating system. In this book, you'll learn how to: Install Fedora and perform basic administrative tasks Configure the KDE and GNOME desktops Get power management working on your notebook computer and hop on a wired or wireless network Find, install, and update any of the thousands of packages available for Fedora Perform backups, increase reliability with RAID, and manage your disks with logical volumes Set up a server with file sharing, DNS, DHCP, email, a Web server, and more Work with Fedora's security features including SELinux, PAM, and Access Control Lists (ACLs) Whether you are running the stable version of Fedora Core or bleeding-edge Rawhide releases, this book has something for every level of user. The modular, lab-based approach not only shows you how things work-but also explains why--and provides you with the answers you need to get up and running with Fedora Linux. Chris Tyler is a computer consultant and a professor of computer studies at Seneca College in Toronto, Canada where he teaches courses on Linux and X Window System Administration. He has worked on systems ranging from embedded data converters to Multics mainframes.

The PAM mechanism

Author : Noite.pl
Publisher : NOITE S.C.
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4./5 ( download)

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Book Synopsis The PAM mechanism by : Noite.pl

Download or read book The PAM mechanism written by Noite.pl and published by NOITE S.C.. This book was released on with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authentication with modules. Everything is possible. The micro-course discusses the PAM system being a modular system for verifying user rights to working with the system. By default this mechanism checks the login and the password given by the user in /etc/passd and /etc/shadow files. However, with according plug-ins the procedure of verification may be freely changed and data about the login or password can be stored in any place. Keywords: PAN, NSS, Modular Authentication system , pam_unix, /etc/pam.d, session, account, password, auth The PAM mechanism The principle of operation of the PAM mechanism

Kerberos

Author : Jason Garman
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596004036
Total Pages : 272 pages
Book Rating : 4.5/5 (96 download)

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Book Synopsis Kerberos by : Jason Garman

Download or read book Kerberos written by Jason Garman and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kerberos, the single sign-on authentication system originally developed at MIT, deserves its name. It's a faithful watchdog that keeps intruders out of your networks. But it has been equally fierce to system administrators, for whom the complexity of Kerberos is legendary. Single sign-on is the holy grail of network administration, and Kerberos is the only game in town. Microsoft, by integrating Kerberos into Active Directory in Windows 2000 and 2003, has extended the reach of Kerberos to all networks large or small. Kerberos makes your network more secure and more convenient for users by providing a single authentication system that works across the entire network. One username; one password; one login is all you need. Fortunately, help for administrators is on the way. Kerberos: The Definitive Guide shows you how to implement Kerberos for secure authentication. In addition to covering the basic principles behind cryptographic authentication, it covers everything from basic installation to advanced topics like cross-realm authentication, defending against attacks on Kerberos, and troubleshooting. In addition to covering Microsoft's Active Directory implementation, Kerberos: The Definitive Guide covers both major implementations of Kerberos for Unix and Linux: MIT and Heimdal. It shows you how to set up Mac OS X as a Kerberos client. The book also covers both versions of the Kerberos protocol that are still in use: Kerberos 4 (now obsolete) and Kerberos 5, paying special attention to the integration between the different protocols, and between Unix and Windows implementations. If you've been avoiding Kerberos because it's confusing and poorly documented, it's time to get on board! This book shows you how to put Kerberos authentication to work on your Windows and Unix systems.

A Practical Guide to UNIX for Mac OS X Users

Author : Mark G. Sobell
Publisher : Prentice Hall Professional
ISBN 13 : 0321629981
Total Pages : 1057 pages
Book Rating : 4.3/5 (216 download)

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Book Synopsis A Practical Guide to UNIX for Mac OS X Users by : Mark G. Sobell

Download or read book A Practical Guide to UNIX for Mac OS X Users written by Mark G. Sobell and published by Prentice Hall Professional. This book was released on 2005-12-21 with total page 1057 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Most Useful UNIX Guide for Mac OS X Users Ever, with Hundreds of High-Quality Examples! Beneath Mac OS® X's stunning graphical user interface (GUI) is the most powerful operating system ever created: UNIX®. With unmatched clarity and insight, this book explains UNIX for the Mac OS X user–giving you total control over your system, so you can get more done, faster. Building on Mark Sobell's highly praised A Practical Guide to the UNIX System, it delivers comprehensive guidance on the UNIX command line tools every user, administrator, and developer needs to master—together with the world's best day-to-day UNIX reference. This book is packed with hundreds of high-quality examples. From networking and system utilities to shells and programming, this is UNIX from the ground up–both the "whys" and the "hows"–for every Mac user. You'll understand the relationships between GUI tools and their command line counterparts. Need instant answers? Don't bother with confusing online "manual pages": rely on this book's example-rich, quick-access, 236-page command reference! Don't settle for just any UNIX guidebook. Get one focused on your specific needs as a Mac user! A Practical Guide to UNIX® for Mac OS® X Users is the most useful, comprehensive UNIX tutorial and reference for Mac OS X and is the only book that delivers Better, more realistic examples covering tasks you'll actually need to perform Deeper insight, based on the authors' immense knowledge of every UNIX and OS X nook and cranny Practical guidance for experienced UNIX users moving to Mac OS X Exclusive discussions of Mac-only utilities, including plutil, ditto, nidump, otool, launchctl, diskutil, GetFileInfo, and SetFile Techniques for implementing secure communications with ssh and scp–plus dozens of tips for making your OS X system more secure Expert guidance on basic and advanced shell programming with bash and tcsh Tips and tricks for using the shell interactively from the command line Thorough guides to vi and emacs designed to help you get productive fast, and maximize your editing efficiency In-depth coverage of the Mac OS X filesystem and access permissions, including extended attributes and Access Control Lists (ACLs) A comprehensive UNIX glossary Dozens of exercises to help you practice and gain confidence And much more, including a superior introduction to UNIX programming tools such as awk, sed, otool, make, gcc, gdb, and CVS

RADIUS

Author : Jonathan Hassell
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596003226
Total Pages : 206 pages
Book Rating : 4.5/5 (96 download)

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Book Synopsis RADIUS by : Jonathan Hassell

Download or read book RADIUS written by Jonathan Hassell and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: RADIUS, or Remote Authentication Dial-In User Service, is a widely deployed protocol that enables companies to authenticate, authorize and account for remote users who want access to a system or service from a central network server. RADIUS provides a complete, detailed guide to the underpinnings of the RADIUS protocol. Author Jonathan Hassell brings practical suggestions and advice for implementing RADIUS and provides instructions for using an open-source variation called FreeRADIUS.

SSH, The Secure Shell

Author : Daniel J. Barrett
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596008953
Total Pages : 666 pages
Book Rating : 4.5/5 (96 download)

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Book Synopsis SSH, The Secure Shell by : Daniel J. Barrett

Download or read book SSH, The Secure Shell written by Daniel J. Barrett and published by "O'Reilly Media, Inc.". This book was released on 2005-05-10 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Network Security Hacks

Author : Andrew Lockhart
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596527632
Total Pages : 478 pages
Book Rating : 4.5/5 (965 download)

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Book Synopsis Network Security Hacks by : Andrew Lockhart

Download or read book Network Security Hacks written by Andrew Lockhart and published by "O'Reilly Media, Inc.". This book was released on 2007 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition offers both new and thoroughly updated hacks for Linux, Windows, OpenBSD, and Mac OS X servers that not only enable readers to secure TCP/IP-based services, but helps them implement a good deal of clever host-based security techniques as well.

The Official Samba-3 HOWTO and Reference Guide

Author : John H. Terpstra
Publisher : Prentice Hall Professional
ISBN 13 : 9780131453555
Total Pages : 732 pages
Book Rating : 4.4/5 (535 download)

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Book Synopsis The Official Samba-3 HOWTO and Reference Guide by : John H. Terpstra

Download or read book The Official Samba-3 HOWTO and Reference Guide written by John H. Terpstra and published by Prentice Hall Professional. This book was released on 2004 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the features of Samba-3 provides step-by-step installation instructions on integrating Samba into a Windows or UNIX environment.

Linux Essentials for Cybersecurity

Author : William Rothwell
Publisher : Pearson IT Certification
ISBN 13 : 0134853024
Total Pages : 1931 pages
Book Rating : 4.1/5 (348 download)

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Book Synopsis Linux Essentials for Cybersecurity by : William Rothwell

Download or read book Linux Essentials for Cybersecurity written by William Rothwell and published by Pearson IT Certification. This book was released on 2018-07-30 with total page 1931 pages. Available in PDF, EPUB and Kindle. Book excerpt: ALL YOU NEED TO KNOW TO SECURE LINUX SYSTEMS, NETWORKS, APPLICATIONS, AND DATA–IN ONE BOOK From the basics to advanced techniques: no Linux security experience necessary Realistic examples & step-by-step activities: practice hands-on without costly equipment The perfect introduction to Linux-based security for all students and IT professionals Linux distributions are widely used to support mission-critical applications and manage crucial data. But safeguarding modern Linux systems is complex, and many Linux books have inadequate or outdated security coverage. Linux Essentials for Cybersecurity is your complete solution. Leading Linux certification and security experts William “Bo” Rothwell and Dr. Denise Kinsey introduce Linux with the primary goal of enforcing and troubleshooting security. Their practical approach will help you protect systems, even if one or more layers are penetrated. First, you’ll learn how to install Linux to achieve optimal security upfront, even if you have no Linux experience. Next, you’ll master best practices for securely administering accounts, devices, services, processes, data, and networks. Then, you’ll master powerful tools and automated scripting techniques for footprinting, penetration testing, threat detection, logging, auditing, software management, and more. To help you earn certification and demonstrate skills, this guide covers many key topics on CompTIA Linux+ and LPIC-1 exams. Everything is organized clearly and logically for easy understanding, effective classroom use, and rapid on-the-job training. LEARN HOW TO: Review Linux operating system components from the standpoint of security Master key commands, tools, and skills for securing Linux systems Troubleshoot common Linux security problems, one step at a time Protect user and group accounts with Pluggable Authentication Modules (PAM), SELinux, passwords, and policies Safeguard files and directories with permissions and attributes Create, manage, and protect storage devices: both local and networked Automate system security 24/7 by writing and scheduling scripts Maintain network services, encrypt network connections, and secure network-accessible processes Examine which processes are running–and which may represent a threat Use system logs to pinpoint potential vulnerabilities Keep Linux up-to-date with Red Hat or Debian software management tools Modify boot processes to harden security Master advanced techniques for gathering system information

Pam Mastery

Author : Michael Lucas
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781537657707
Total Pages : 182 pages
Book Rating : 4.6/5 (577 download)

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Book Synopsis Pam Mastery by : Michael Lucas

Download or read book Pam Mastery written by Michael Lucas and published by Createspace Independent Publishing Platform. This book was released on 2016-09-13 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pluggable Authentication Modules: Threat or Menace? PAM is one of the most misunderstood parts of systems administration. Many sysadmins live with authentication problems rather than risk making them worse. PAM's very nature makes it unlike any other Unix access control system. If you have PAM misery or PAM mysteries, you need PAM Mastery! With PAM Mastery, you'll understand: the different versions of PAM the intricacies of Linux-PAM and OpenPAM how PAM policies make decisions how to debug PAM the most frequently seen PAM modules Linux-PAM extended controls and substacks time-based one-time passwords using SSH keys for more than SSH password quality testing policies from CentOS, Debian, and FreeBSD and more! Transform PAM from a headache to an ally with PAM Mastery