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Linux Security Administration

LNX-108 (5 Days)

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Linux Security Training Overview

Accelebrate's Linux Security Administration course teaches students to secure machines running the Linux operating system. Attendees learn a broad range of general security techniques such as packet filtering, password policies, and file integrity checking, as well as advanced security technologies such as Kerberos and SELinux.

Location and Pricing

Most Accelebrate courses are delivered as private, customized, on-site training at our clients' locations worldwide for groups of 3 or more attendees and are custom tailored to their specific needs. Please visit our client list to see organizations for whom we have delivered private in-house training. These courses can also be delivered as live, private online classes for groups that are geographically dispersed or wish to save on the instructor's or students' travel expenses. To receive a customized proposal and price quote for private training at your site or online, please contact us.

Linux Security Training Objectives

All students will:

  • Have an excellent understanding of potential security vulnerabilities 
  • Audit existing machines
  • Deploy new network services securely

Linux Security Training Outline

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Introduction
  • Security Concepts
  • Basic Security Principles
  • RHEL6 Default Install
  • RHEL6 Firewall
  • SLES11 Default Install
  • SLES11 Firewall
  • SLES11: File Security
  • Minimization - Discovery
  • Service Discovery
  • Hardening
  • Security Concepts
Scanning, Probing, and Mapping Vulnerabilities
  • The Security Environment
  • Stealth Reconnaissance
  • The WHOIS database
  • Interrogating DNS
  • Discovering Hosts
  • Discovering Reachable Services
  • Reconnaissance with SNMP
  • Discovery of RPC Services
  • Enumerating NFS Shares
  • Nessus Insecurity Scanner
  • Configuring OpenVAS
Password Security and PAM
  • UNIX Passwords
  • Password Aging
  • Auditing Passwords
  • PAM Overview
  • PAM Module Types
  • PAM Order of Processing
  • PAM Control Statements
  • PAM Modules
Secure Network Time Protocol (NTP)
  • The Importance of Time
  • Hardware and System Clock
  • Time Measurements
  • NTP Terms and Definitions
  • Synchronization Methods
  • NTP Evolution
  • Time Server Hierarchy
  • Operational Modes
  • NTP Clients
  • Configuring NTP Clients
  • Enterprise Linux Security
  • Administration
  • Enterprise Linux Security Administration
  • Configuring NTP Servers
  • Securing NTP
  • NTP Packet Integrity
  • Useful NTP Commands
Kerberos Concepts and Components
  • Common Security Problems
  • Account Proliferation
  • The Kerberos Solution
  • Kerberos History
  • Kerberos Implementations
  • Kerberos Concepts
  • Kerberos Principals
  • Kerberos Safeguards
  • Kerberos Components
  • Authentication Process
  • Identification Types
  • Logging In
  • Gaining Privileges
  • Using Privileges
  • Kerberos Components and the KDC
  • Kerberized Services Review
  • Kerberized Clients
  • KDC Server Daemons
  • Configuration Files
  • Utilities Overview
Implementing Kerberos
  • Plan Topology and Implementation
  • Kerberos 5 Client Software
  • Kerberos 5 Server Software
  • Synchronize Clocks
  • Create Master KDC
  • Configuring the Master KDC
  • KDC Logging
  • Kerberos Realm Defaults
  • Specifying [realms]
  • Specifying [domain_realm]
  • Allow Administrative Access
  • Create KDC Databases
  • Create Administrators
  • Install Keys for Services
  • Start Services
  • Add Host Principals
  • Add Common Service Principals
  • Configure Slave KDCs
  • Create Principals for Slaves
  • Define Slaves as KDCs
  • Copy Configuration to Slaves
  • Install Principals on Slaves
  • Create Stash on Slaves
  • Start Slave Daemons
  • Client Configuration
  • Install krb5.conf on Clients
  • Client PAM Configuration
  • Install Client Host Keys
Administering and using
  • Kerberos
  • Administrative Tasks
  • Key Tables
  • Managing Keytabs
  • Managing Principals
  • Viewing Principals
  • Adding, Deleting, and Modifying
  • Principals
  • Principal Policy
  • Overall Goals for Users
  • Signing In to Kerberos
  • Ticket types
  • Viewing Tickets
  • Removing Tickets
  • Passwords
  • Changing Passwords
  • Giving Others Access
  • Using Kerberized Services
  • Kerberized FTP
  • Enabling Kerberized Services
  • OpenSSH and Kerberos
Securing the Filesystem
  • Filesystem Mount Options
  • NFS Properties
  • NFS Export Option
  • NFSv4 and GSSAPI Auth
  • Implementing NFSv4
  • Implementing Kerberos with
  • NFS
  • GPG - GNU Privacy Guard
  • File Encryption with OpenSSL
  • File Encryption with encfs
  • Linux Unified Key Setup
  • (LUKS)
AIDE
  • Host Intrusion Detection Systems
  • Using RPM as a HIDS
  • Enterprise Linux Security Administration
  • Introduction to AIDE
  • AIDE Installation
  • AIDE Policies
  • AIDE Usage Chapter Section
Accountability with Kernel Audit
  • Accountability and Auditing
  • Simple Session Auditing
  • Simple Process Accounting & Command History
  • Kernel-Level Auditing
  • Configuring the Audit Daemon
  • Controlling Kernel Audit System
  • Creating Audit Rules
  • Searching Audit Logs
  • Generating Audit Log Reports
  • Audit Log Analysis
SELinux
  • DAC vs. MAC
  • Shortcomings of Traditional Unix Security
  • AppArmor
  • SELinux Goals
  • SELinux Evolution
  • SELinux Modes
  • Gathering Information
  • SELinux Virtual File System
  • SELinux Contexts
  • Managing Contexts
  • The SELinux Policy
  • Choosing an SELinux Policy
  • Policy Layout
  • Tuning and Adapting Policy
  • Booleans
  • Permissive Domains
  • Managing File Contexts
  • Managing Port Contexts
  • SELinux Policy Tools
  • Examining Policy
  • SELinux Troubleshooting
Securing Apache
  • Apache Overview
  • httpd.conf - Server Settings
  • Configuring CGI
  • Turning Off Unneeded Modules
  • Delegating Administration
  • Apache Access Controls (mod_access)
  • HTTP User Authentication
  • Standard Auth Modules
  • HTTP Digest Authentication
  • Authentication via SQL
  • Authentication via LDAP
  • Authentication via Kerberos
  • Scrubbing HTTP Headers
  • Metering HTTP Band
Securing PostgreSQL
  • PostgreSQL Overview
  • PostgreSQL Default Config
  • Configuring SSL
  • Client Authentication Basics
  • Advanced Authentication
  • Ident-based Authentication
Conclusion
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Lecture percentage

40%

Lecture/Demo

Lab percentage

60%

Lab

Course Number:

LNX-108

Duration:

5 Days

Prerequisites:

Students should be experienced systems administrators with current Linux or Unix systems.

Training Materials:

All attendees receive comprehensive courseware and a related textbook.

Software Requirements:

  • Windows, Mac, or Linux PCs with at least 4 GB RAM
  • Accelebrate can provide a VirtualBox or VMware environment with all software needed for the class
    • This class can be taught using the Linux distribution of your choice
  • Please contact us for further setup details

Contact Us:

Accelebrate’s training classes are available for private groups of 3 or more people at your site or online anywhere worldwide.

Don't settle for a "one size fits all" public class! Have Accelebrate deliver exactly the training you want, privately at your site or online, for less than the cost of a public class.

For pricing and to learn more, please contact us.

Contact Us

Toll-free in US/Canada:
877 849 1850
International:
+1 678 648 3113

Toll-free in US/Canada:
866 566 1228
International:
+1 404 420 2491

925B Peachtree Street, NE
PMB 378
Atlanta, GA 30309-3918
USA

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