The PAM mechanism

The PAM mechanism
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 13
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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

Practical UNIX and Internet Security

Practical UNIX and Internet Security
Author: Simson Garfinkel
Publisher: "O'Reilly Media, Inc."
Total Pages: 989
Release: 2003-02-21
Genre: Computers
ISBN: 1449310125

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.

Integration of the PAM mechanism with the SAMBA server

Integration of the PAM mechanism with the SAMBA server
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 14
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Can I get connected to Active Directory? Yes, you can. Can I connect PAM to SAMBA? You can, too. The micro-course discusses the rules of integration of the PAM mechanism with the SAMBA server. It is necessary if the administrator wants to authenticate users on the basis of data contained in the Active Directory bases of the Microsoft Windows server or if it wants to authorize SAMBA users on the basis of the PAM model instead of its own files with mapping and password. Keywords: PAM, Samba, WINS, Winbind, smb.conf Integration of the PAM mechanism with the SAMBA server Integration of the SAMBA server with the PAM service Installation and configuration Configuration of SAMBA Configuration of PAM Setting the client Authentication of the Linux system users in Microsoft Windows The Winbind packet Configuration

PAM mechanism – setting the parameters of the working environment

PAM mechanism – setting the parameters of the working environment
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 12
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Setting parameters and variables while verifying the user is so simple now. The micro-course discusses PAM plug-ins enabling setting the environment parameters. It describes the plug-ins: pam_group, pam_timestamp, pam_umask, pam_loginuid, pam_mkhomedir, pam_env. Keywords: environmental variables, PAM, session, pam_group, pam_timestamp, pam_umask, pam_loginuid, pam_mkhomedir, pam_env PAM mechanism – setting the parameters of the working environment The pam_group plug-in The pam_timestamp plug-in The pam_umask plug-in The pam_loginuid plug-in The pam_mkhomedir plug-in The pam_env plug-in

Configuration of the PAM system

Configuration of the PAM system
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 13
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PAM should be configured – as the result may be a great surprise. The micro-course describes installation and configuration of the PAM system. Moreover, there is a list of basic plug-ins available with the original packet. Keywords: PAM, util-linux, shadow, pam.conf, auth, account, session, password, common-password, pam.d, /etc/pam.d Configuration of the PAM system Installation of the PAM system Configuration of the PAM system Libraries and plug-ins

Integration of services with the PAM system

Integration of services with the PAM system
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 16
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Passwords should be stored in the database – if there are many of them, as well as other information about users. The micro-course contains information about user authorization on the basis of data contained in the MySQL database. Moreover, it describes the way of using the PAM mechanism by Internet service servers such as Proftpd and Apache, thanks to which authorization to them can also take place through data contained in the SQL database. Keywords: pam_myssql, pam, database, user, password, proftpd Integration of services with the PAM system Using the MySQL database for authorization Configuration Identification with the use of the MySQL database Integration of services with the PAM library Modification of Proftpd configuration

PAM mechanism - setting limits and rights

PAM mechanism - setting limits and rights
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 9
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Limiting resources on the logging level? Yes, it is possible. The micro-course describes PAM plug-ins used for setting limits and rights, i.e. the plug-ins: pam_limits oraz pam_cap. Keywords: PAM, pam_limits, pam_cap PAM mechanism –setting limits and rights The pam_limits plug-in The pam_cap plug-in

PAM mechanism –tracking work and displaying information

PAM mechanism –tracking work and displaying information
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 12
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How do I track the authentication process? Should I inform the user about something? The micro-course describes PAM plug-ins used for tracking work and displaying information. It discusses the plug-ins: pam_debug, pam_echo, pam_exec, pam_faildelay, pam_issue, pam_lastlog, pam_mail, pam_motd, pam_warn. Keywords: PAM, pam_debug, pam_echo, pam_exec, pam_faildelay, pam_issue, pam_lastlog, pam_mail, pam_motd, pam_warn PAM mechanism –tracking work and displaying information The pam_debug plug-in The pam_echo plug-in The pam_exec plug-in The pam_faildelay plug-in The pam_issue plug-in The pam_lastlog plug-in The pam_mail plug-in The pam_motd plug-in The pam_warn plug-in

Kerberos support modules in the PAM authentication mechanism

Kerberos support modules in the PAM authentication mechanism
Author: Noite.pl
Publisher: NOITE S.C.
Total Pages: 11
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Kerberos should be integrated with the PAM system and then it will authenticate users. The micro-course describes integration of the Kerberos and PAM systems used in the Linux system. Keywords: PAM, Kerberos, pam_krb5, pam_krb5.so Kerberos support modules in the PAM authentication mechanism The pam_krb5.so module Configuring the pam_krb5 module Limiting the ability to log on via the Kerberos

Privileged Attack Vectors

Privileged Attack Vectors
Author: Morey J. Haber
Publisher: Apress
Total Pages: 403
Release: 2020-06-13
Genre: Computers
ISBN: 1484259149

See how privileges, insecure passwords, administrative rights, and remote access can be combined as an attack vector to breach any organization. Cyber attacks continue to increase in volume and sophistication. It is not a matter of if, but when, your organization will be breached. Threat actors target the path of least resistance: users and their privileges. In decades past, an entire enterprise might be sufficiently managed through just a handful of credentials. Today’s environmental complexity has seen an explosion of privileged credentials for many different account types such as domain and local administrators, operating systems (Windows, Unix, Linux, macOS, etc.), directory services, databases, applications, cloud instances, networking hardware, Internet of Things (IoT), social media, and so many more. When unmanaged, these privileged credentials pose a significant threat from external hackers and insider threats. We are experiencing an expanding universe of privileged accounts almost everywhere. There is no one solution or strategy to provide the protection you need against all vectors and stages of an attack. And while some new and innovative products will help protect against or detect against a privilege attack, they are not guaranteed to stop 100% of malicious activity. The volume and frequency of privilege-based attacks continues to increase and test the limits of existing security controls and solution implementations. Privileged Attack Vectors details the risks associated with poor privilege management, the techniques that threat actors leverage, and the defensive measures that organizations should adopt to protect against an incident, protect against lateral movement, and improve the ability to detect malicious activity due to the inappropriate usage of privileged credentials. This revised and expanded second edition covers new attack vectors, has updated definitions for privileged access management (PAM), new strategies for defense, tested empirical steps for a successful implementation, and includes new disciplines for least privilege endpoint management and privileged remote access. What You Will Learn Know how identities, accounts, credentials, passwords, and exploits can be leveraged to escalate privileges during an attack Implement defensive and monitoring strategies to mitigate privilege threats and risk Understand a 10-step universal privilege management implementation plan to guide you through a successful privilege access management journeyDevelop a comprehensive model for documenting risk, compliance, and reporting based on privilege session activity Who This Book Is For Security management professionals, new security professionals, and auditors looking to understand and solve privilege access management problems