Linux System Administration for UNIX Administrators

Course:  LNXA4UA
Duration:  5 Days
Level:  III
Course Summary

Linux System Administration for Linux Administrators is an accelerated course combining the topics in our Enterprise Linux Systems Administration, and Enterprise Linux Networking Services courses.

The course covers both RedHat and SuSE Enterprise distributions, and students can choose to use either distribution during hands-on sessions.

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Topics Covered In This Course

Linux Hardware Discovery, Interaction, and Control

  • Hardware Discovery Tools
  • Configuring New Hardware with hwinfo
  • Hardware and System Clock
  • Console
  • Virtual Terminals
  • Serial Ports
  • SCSI Devices
  • USB Configuration
  • Defining a Printer
  • Tape Drives
  • Tape Libraries
  • Managing Linux Device Files
  • Kernel Hardware Info - /sys/
  • /sys/ Structure
  • udev
  • Kernel Modules
  • Configuring Kernel Components and Modules
  • Handling Module Dependencies
  • Configuring the Kernel via /proc/
  • System Tools

Boot Process and SysV Init

  • Booting Linux on PCs
  • GRUB Configuration
  • Boot Parameters
  • /sbin/init
  • /etc/inittab
  • /etc/rc.d/rc.sysinit
  • SUSE /etc/init.d/boot
  • Runlevel Implementation
  • System Configuration Files
  • Configuration Utilities
  • Novell's Configuration Utilities
  • Typical SysV Init Script
  • The /etc/rc.local File
  • The /etc/init.d/*.local Files
  • Managing Daemons
  • Controlling Service Startup
  • Shutdown and Reboot
  • Run Level and Kernel Information

Software Maintenance

  • RPM Features
  • RPM Architecture
  • Working With RPMs
  • Querying and Verifying with rpm
  • Updating the Kernel RPM
  • Using the YUM command
  • YUM package groups
  • Configuring YUM
  • YUM Repositories
  • Installing Source RPM Packages
  • Software Tools Comparison Matrix

Filesystem Administration

  • Partitioning Disks with fdisk
  • Partitioning Disks with parted
  • Filesystem Creation
  • Mounting Filesystems
  • Filesystem Maintenance
  • Resizing Filesystems
  • Swap
  • Configuring Disk Quotas
  • Setting Quotas
  • Viewing and Monitoring Quotas
  • Filesystem Attributes
  • Backup Software
  • Backup Examples
  • Filesystem Creation and Management

LVM & RAID

  • Logical Volume Management
  • Implementing LVM
  • Creating Logical Volumes
  • Manipulating VGs & LVs
  • Advanced LVM Concepts
  • system-config-lvm
  • SLES Graphical Disk Tool
  • RAID Concepts
  • Array Creation with mdadm
  • Software RAID Monitoring
  • Software RAID Control and Display
  • LVM and RAID: Unix Tool Comparison

Remote Storage Administration

  • Remote Storage Overview
  • Remote Filesystem Protocols
  • Remote Block Device Protocols
  • File Sharing via NFS
  • NFSv4
  • NFS Clients
  • NFS Server Configuration
  • Implementing NFSv4
  • AutoFS
  • AutoFS Configuration
  • Accessing Windows/Samba Shares from Linux
  • SAN Multipathing
  • Multipath Configuration
  • Multipathing Best Practices
  • iSCSI Architecture
  • Open-iSCSI Initiator Implementation
  • iSCSI Initiator Discovery
  • iSCSI Initiator Node Administration
  • Mounting iSCSI Targets at Boot
  • iSCSI Multipathing Considerations

User/Group Administration

  • User and Group Concepts
  • User Administration
  • Modifying Accounts
  • Group Administration
  • Password Aging
  • Default User Files
  • Controlling Logins
  • Manual DS Client Configuration
  • system-config-authentication
  • SLES Graphical DS Client Configuration
  • PAM Overview
  • PAM Module Types
  • PAM Order of Processing
  • PAM Control Statements
  • pam_wheel.so
  • pam_limits.so
  • User/Group Administration Comparison Matrix

Security Administration

  • Security Concepts
  • Tightening Default Security
  • Security Advisories
  • File Access Control Lists
  • Manipulating FACLs
  • Viewing FACLs
  • Backing Up FACLs
  • File Creation Permissions with umask
  • User Private Group Scheme
  • Alternatives to UPG
  • TCP Wrappers Concepts
  • TCP Wrappers Concepts
  • Xinetd
  • Basic Firewall Activation
  • Netfilter Concepts
  • Using the iptables Command
  • Common match_specs
  • Connection Tracking
  • AppArmor
  • SELinux Security Framework
  • SELinux Modes
  • SELinux Commands
  • Choosing an SELinux Policy
  • SELinux Booleans
  • Graphical SELinux Policy Tools
  • (X)INETD and Firewalls

Process Administration

  • Automating Tasks
  • at & cron Usage
  • anacron
  • Viewing Processes
  • Managing Processes
  • Tuning Process Scheduling
  • Process Accounting
  • Enabling Process Accounting
  • Setting Resource Limits via ulimit

Networking

  • Linux Network Interfaces
  • Ethernet Hardware Tools
  • Network Configuration with ip Command
  • Configuring Routing Tables
  • IP to MAC Address Mapping with ARP
  • Starting and Stopping Interfaces
  • NetworkManager
  • DNS Clients
  • DHCP Clients
  • Network Diagnostics
  • Information from netstat
  • Managing Network-Wide Time
  • Continual Time Sync with NTP
  • Configuring NTP Clients
  • Multiple IP Addresses
  • Enabling IPv6
  • Interface Bonding
  • Interface Bridging
  • 802.1q VLANS
  • Tuning Kernel Network Settings
  • Network Configuration Tools

The X Window System

  • X Modularity
  • X.Org Drivers
  • Configuring X Manually
  • Automatic X Configuration
  • Automatic X Configuration - SLES
  • The X11 Protocol and Display Names
  • Display Managers and Graphical Login
  • Starting X Apps Automatically
  • X Access Control
  • Remote X Access (historical/insecure approach)
  • Remote X Access (modern/secure approach)
  • XDMCP
  • Remote Graphical Access With VNC and RDP
  • Specialized X Servers
  • Enabling the Graphical User Interface

BIND Concepts and Configuration

  • The Domain Name Space
  • Delegation and Zones
  • Server Roles
  • Resolving Names
  • Resolving IP Addresses
  • Basic BIND Administration
  • Configuring the Resolver
  • Testing Resolution
  • rndc Key Configuration
  • BIND Configuration Files
  • named.conf Syntax
  • named.conf Options Block
  • Creating a Site-Wide Cache
  • Zones In named.conf
  • Zone Database File Syntax
  • SOA - Start of Authority
  • A & PTR - Address & Pointer Records
  • NS - Name Server
  • CNAME & MX - Alias & Mail Host
  • Abbreviations and Gotchas
  • $ORIGIN and $GENERATE

OpenLDAP

  • OpenLDAP: Server Architecture
  • OpenLDAP: Backends
  • OpenLDAP: Replication
  • OpenLDAP: Configuration Options
  • OpenLDAP: Configuration Sections
  • OpenLDAP: Global Parameters
  • OpenLDAP: Database Parameters
  • OpenLDAP Server Tools
  • OpenLDAP Client Tools
  • LDIF: LDAP Data Interchange Format
  • Enabling LDAP-based Login
  • System Security Services Daemon (SSSD)

Using vsFTPd and Apache

  • vsftpd
  • Configuring vsftpd
  • Anonymous FTP with vsftpd
  • HTTP Operation
  • Apache Architecture
  • Apache Configuration Files
  • httpd.conf - Server Settings
  • httpd.conf - Main Configuration
  • httpd.conf - VirtualHost Configuration
  • Virtual Hosting DNS Implications
  • Dynamic Shared Objects
  • Adding Modules to Apache
  • Apache Logging
  • Log Analysis

Apache Security

  • Delegating Administration
  • Directory Protection
  • Directory Protection with AllowOverride
  • Common Uses for .htaccess
  • Symmetric Encryption Algorithms
  • Asymmetric Encryption Algorithms
  • Digital Certificates
  • SSL Using mod_ssl.so

The SQUID Proxy Server

  • Squid Overview
  • Squid File Layout
  • Squid Access Control Lists
  • Applying Squid ACLs
  • Tuning Squid & Configuring Cache Hierarchies
  • Bandwidth Metering
  • Monitoring Squid
  • Proxy Client Configuration

Samba Concepts and Configuration

  • Introducing Samba
  • Samba Daemons
  • NetBIOS and NetBEUI
  • Accessing Windows/Samba Shares from Linux
  • Samba Utilities
  • Samba Configuration Files
  • The smb.conf File
  • Mapping Permissions and ACLs
  • Mapping Linux Concepts
  • Mapping Case Sensitivity
  • Sharing Home Directories
  • Sharing Printers
  • Share Authentication
  • Share-Level Access
  • User-Level Access
  • Mapping Users
  • SMB and Passwords
  • Samba Account Database
  • User Share Restrictions

Postfix

  • Postfix Features
  • Postfix Components
  • Postfix Configuration
  • master.cf
  • main.cf
  • Postfix Map Types
  • Postfix Pattern Matching
  • Virtual Domains
  • Postfix Mail Filtering
  • Configuration Commands
  • Management Commands
  • Postfix Logging
  • SMTP AUTH Server
  • SMTP AUTH Clients
  • TLS Server Configuration
  • Postfix Client Configuration for TLS
  • Ensuring TLS Security

Mail Services and Retrieval

  • Procmail
  • SpamAssassin
  • amavisd-new Mail Filtering
  • Accessing Email
  • The IMAP4 Protocol
  • Cyrus IMAP/POP3 Server
  • Cyrus IMAP MTA Integration
  • Cyrus Mailbox Administration

Monitoring & Troubleshooting

  • System Status - Memory
  • System Status - I/O
  • System Status - CPU
  • Performance Trending with sar
  • Troubleshooting Basics: The Process
  • Troubleshooting Basics: The Tools
  • System Logging
  • Syslog-ng
  • Rsyslog
  • /etc/rsyslog.conf
  • Log Management
  • Log Anomaly Detector
  • strace and ltrace
  • Common Problems
  • Incorrect File Permissions
  • Inability to Boot
  • Typos in Configuration Files
  • Corrupt Filesystems
  • Rescue Environment
  • SUSE Rescue Environment
  • Process Tools

Installing RHEL6

  • Anaconda: An Overview
  • Anaconda: Booting the System
  • Anaconda: Common Boot Options
  • Anaconda: Loading Anaconda and Packages
  • Anaconda: Storage Options
  • Anaconda: Troubleshooting
  • FirstBoot
  • Kickstart
  • A Typical Install

Installing SLES11

  • Installation Choices
  • DVD-ROM Install Media
  • Network Installation
  • SLP for SUSE Linux Installation
  • Local Hard Drive Installation
  • The linuxrc Program
  • Install Program Interface
  • Installation Diagnostics
  • Language/Keyboard Selection and EULA
  • Installation Mode
  • Clock and Time Zone
  • Desktop Selection
  • Server Base Scenario
  • The YaST Installer Design
  • Disk Partitioning
  • Boot Loader Configuration
  • Software Package Selection
  • Kernel Crash Dump Configuration
  • Confirmation and File Installation
  • Setting the Root Password
  • Hostname and Domain Name
  • Network Configuration
  • SLES Services Configuration
  • Adding a User Account
  • Release Notes
  • Final Installation Hub
  • Installation Complete and AutoYaST2 "Cloning"
  • Using AutoYaST2 files
  • Creating AutoYaST2 Files
  • linuxrc Automation
Recommended Prerequisites

Students should already be experienced Unix administrators. Fundamentals such as the Unix command line and how to edit files will not be covered in class. A good understanding of network concepts, the TCP/IP protocol suite, and basic Unix security is also assumed. The accelerated pace of this class makes it difficult for unprepared students to keep up.

Training Style

Combination of short lecture sessions and extensive hands-on practice.

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Related Courses
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LNXADM
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LNXFIX
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Details

Every student attending a Verhoef Training class will receive a certificate good for $100 toward their next public class taken within a year.

You can also buy "Verhoef Vouchers" to get a discounted rate for a single student in any of our public or web-based classes. Contact your account manager or our sales office for details.

Schedule For This Course
There are currently no public sessions scheduled for this course. We can schedule a private class for your organization just a couple of weeks from now. Or we can let you know the next time we do schedule a public session.
Notify me the next time this course is confirmed!
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