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L-615 - Linux for UNIX Administrators (Accelerated)

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Duration: 5 Days

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Course Information

Course Description

This five-day, accelerated course is geared toward the experienced UNIX administrator. Students learn Linux administration without covering an overlap of knowledge common to both UNIX and Linux. This course covers all the topics in L-250, Enterprise Linux Systems Administration and L-275, Enterprise Linux Network Services courses.
Note: the accelerated format will require nightly reading assignments, with class time focused on review and labs.
This course is currently offered on the latest releases of Red Hat Enterprise Linux.

Course Objectives

Course Audience

​The target audience for this class is the experienced UNIX system administrator, who will be responsible for administering Linux servers.

Students who have already taken L-250 and/or L-275 should not take this course.

Course Outline

DAY 1
  • Linux workstation installation
  • Linux server installation
  • Post-install system configuration
  • Scripting installation of custom setups using kickstart
  • Linux boot process
  • SysV init concepts and configuration
  • Managing startup of system daemons
  • Controlling startup of services in xinetd / inetd
  • Creation, modification, and deletion of users and groups
  • Password aging under Linux
  • The Linux login process and login authentication
  • Regulating access to the root account via su and sudo
  • Creation, modification, and deletion of partitions and filesystems
  • Configuring NFS clients
  • Client DS configuration - NIS, LDAP
  • Management of RAID and LVM devices under Linux
  • Using FACLs
  • Disk space regulation using quotas
  • Backing up and restoring Linux filesystems
DAY 2
  • Scheduling jobs using cron, anacron, and at
  • Management of processes running on the system
  • Usage of process accounting and implementation of process limits
  • Configuration and analysis of system logs
  • System performance analysis
  • Configuring network interfaces
  • Setup of DNS and DHCP clients
  • Diagnosing network setup issues
  • Configuration of X server
  • Installation and maintenance of fonts
  • Usage and configuration of XDMCP
  • Implementations of X security
  • Securing freshly installed Linux systems
  • Keeping Linux systems up-to-date
  • Configuration of Linux firewalls
  • Usage of TCP wrappers to secure Linux systems
DAY 3
  • Configuration of optimized Linux kernels
  • Compiling and installing custom Linux kernels
  • Using third-party patches with Linux kernels
  • Updating userland to support new kernels
  • Concepts for troubleshooting Linux
  • Analysis of system logs to identify problems
  • Use of systems-level debugging aids in troubleshooting
  • Usage of the Linux rescue environment
  • DNS history and theory
  • The domain name space
  • Delegation and Zones
  • Resolving names and reverse lookups
  • Configuring BIND named.conf
  • Configuring BIND zones
  • DNS heirarchies: subdomain delegation
  • Securing BIND DNS
  • BIND 9 Views
  • Restricting queries
  • Restricting zone transfers
  • DDNS and nsupdate
DAY 4
  • LDAP Directory services
  • LDAP Schema
  • Referenceing LDAP entries
  • LDAP security
  • Implementing OpenLDAP server
  • Defining global parameters
  • Restricting access
  • Database configuration and indexing
  • Querying LDAP databases
  • HTTP theory
  • Apache history and status
  • Apache architecture
  • Apache configuration files
  • Using Apache modules
  • Apache logs and analysis
  • Apache virtual hosting
  • Virtual host security issues
  • Apache authentication
  • Intro to cryptography
  • Using HTTPS with Apache
  • Dynamic content
  • Extending Apache with PHP and Tomcat
  • Dynamic content and security
  • Implementing FTP services
DAY 5
  • Configuring a squid proxy
  • Squid ACLs, and hierarchies
  • Bandwidth metering and monitoring
  • Samba 3 foundation
  • SMB protocol theory
  • NetBIOS and NetBEUI
  • NetBIOS naming
  • SMB shares with Samba
  • Mounting SMB shares on Linux
  • Password encryption issues
  • SMTP theory
  • Implementing SMTP with Sendmail
  • Sendmail configuration
  • Sendmail ESMTP AUTH and encryption
  • Implementing SMTP with Postfix
  • Postfix configuration
  • Postfix ESMTP AUTH and encryption
  • Email services: POP3 and IMAP4
  • Encrypting client access
  • Spam and virus filtering
  • Web mail client access

Course Prerequisites

​Individuals wishing to take this class should already be experienced UNIX administrators. Particular focus is given to SOLARIS and HP-UX in the L-615 text. Students not comfortable with UNIX operating systems should consider other courses such as the L-100, Introduction to the Linux Operating System, L-250, Enterprise Linux Systems Administration, and L-275, Enterprise Linux Network Services.

Course Schedule
This course is not scheduled yet.