Linux for Administrators

LNX-102 (5 Days)

Linux Administration Training Overview

Accelebrate's Introduction to Linux Administration course teaches students how to install, configure, maintain, and secure Linux systems.

Location and Pricing

Accelebrate courses are taught as private, customized training for groups of 3 or more at your site. In addition, we offer live, private online training for teams who may be in multiple locations or wish to save on travel costs. To receive a customized proposal and price quote for private on-site or online training, please contact us.

Online Training with Accelebrate. In the wake of the sudden emergence of the Coronavirus crisis, we want to help our clients continue to learn and grow while at home. We are offering 10% off any new booking of private online classes for your team of 3 or more if purchased before May 15, 2020. Please use discount code online2020 in the comments section of the contact form. For more information, and to see how we ensure successful online training, please see this Online Training Q&A.

In addition, some courses are available as live, online classes for individuals. See a schedule of online courses.

Linux Administration Training Objectives

All students will:

Install and configure Linux
Understand the boot process
Master user and group administration
Work with filesystem administration, including quotas, FACLs, RAID and LVM
Automate tasks
Master client networking
Work with SELinux
Manage software and log files
Troubleshoot Linux

Linux Administration Training Outline

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Introduction

Linux Hardware Discovery, Interaction, & Control

Hardware Discovery Tools
Configuring New Hardware with hwinfo
Hardware and System Clock
Console
Virtual Terminals
Serial Ports
SCSI Devices
USB Devices
USB Configuration
Common UNIX Printing System
Defining a Printer
Managing Optical Media
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/

Boot Process and SYSV INIT

Booting Linux on PCs
GRUB Configuration
Boot Parameters
Initial ramdisk
/sbin/init
System Init Styles
Linux Runlevels
/etc/inittab
/etc/rc.d/rc.sysinit
SUSE /etc/init.d/boot
Runlevel Implementation
System Configuration Files
RHEL6 Configuration Utilities
SLES11 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

Software Maintenance [RPM and Yum coverage is specific to RHEL and CentOS; we could cover apt for Ubuntu or YaST for SUSE upon request]

Managing Software
RPM Features
RPM Architecture
RPM Package Files
Working with RPMs
Querying and Verifying with rpm
Updating the Kernel RPM
Dealing with RPM & YUM Digest Changes
YUM Plugins
YUM Repositories
Compiling/Installing from Source
Manually Installed Shared Libraries
Installing Source RPM Packages

File System Administration

Partitioning Disks with fdisk
Partitioning Disks with parted
File system Creation
Mounting File system file systems
File system Maintenance
Persistent Block Devices
Resizing File system file systems
Swap
File system Structures
Determining Disk Usage With df and du
Configuring Disk Quotas
Setting Quotas
Viewing and Monitoring Quotas
File system Attributes
Backup Software

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

Remote Storage Administration

Remote Storage Overview
Remote File system file system 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</li
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
System Security Services
Daemon (SSSD)

Pluggable Authentication

Modules (PAM)
PAM Overview
PAM Module Types
PAM Order of Processing
PAM Control Statements
PAM Modules
pam_unix
pam_nologin.so
pam_limits.so
pam_wheel.so
pam_xauth.so

Security Administration

Security Concepts
Tightening Default Security
SuSE Security Checker
Security Advisories
File Access Control Lists
Manipulating FACLs
Viewing FACLs
Backing Up FACLs
File Creation Permissions with umask Daemon
User Private Group Scheme
Alternatives to UPG
AppArmor
SELinux Security Framework
SELinux Modes
SELinux Commands
Choosing an SELinux Policy
SELinux Booleans
Permissive Domains
SELinux Policy Tools
Basic Firewall Activation

Basic Networking

IPv4 Fundamentals
TCP/UDP Fundamentals
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
system-config-network{tui,cmd}
SUSE YaST Network Configuration Tool [covered if using SUSE]
Network Diagnostics
Information from netstat and ss
Managing Network-Wide Time
Continual Time Sync with NTP
Configuring NTP Clients
Useful NTP Commands

Advanced Networking

Multiple IP Addresses
Configuring a DHCP server
Enabling IPv6
Interface Bonding
Interface Bridging
802.1q VLANS
Tuning Kernel Network Settings

Log File Administration

System Logging
Syslog-ng
Rsyslog
/etc/rsyslog.conf
Log Management
Log Anomaly Detector

Monitoring & Troubleshooting

System Status - Memory
System Status - I/O
System Status - CPU
Performance Trending with sar
Troubleshooting Basics: The Process
Troubleshooting Basics: The Tools
strace and ltrace
Common Problems
Troubleshooting Incorrect File Permissions
Inability to Boot
Typos in Configuration Files
CorruptFile system file systems
RHEL Rescue Environment [covered if using RHEL]
SUSE Rescue Environment [covered if using SUSE]

Conclusion

40%

Lecture/Demo

60%

Lab

Course Number:

LNX-102

Duration:

5 Days

Prerequisites:

Students should be comfortable working in a Linux or UNIX environment. An understanding of network concepts and the TCP/IP protocol suite is helpful.

Training Materials:

All attendees receive comprehensive courseware and a related textbook.

Software Requirements:

Windows, Mac, or Linux PCs with at least 8 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

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