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UN036 Linux Level 2 : Enterprise Linux Systems Administration on your request on your request Contact Us

Linux Level 2 : Enterprise Linux Systems Administration

Linux Level 2 : Enterprise Linux Systems Administration


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This is a five day, in-depth course that explores installation, configuration and maintenance of Linux systems. The course focuses on issues universal to every workstation and server. This course material is designed to provide extensive hands-on experience. Topics include: installation and configuration; the boot process; user and group administration; filesystem administration, including quotas, FACLs, RAID and LVM, task automation, client networking, SELinux, software management, log files and troubleshooting.



1. Linux Hardware Discovery, Interaction, & Control
Hardware Discovery Tools
Configuring New Hardware with hwinfo
Hardware and System Clock
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
Kernel Modules
Configuring Kernel Components and Modules
Handling Module Dependencies
Configuring the Kernel via /proc/

2. Boot Process and SYSV INIT
Booting Linux on PCs
GRUB Configuration
Boot Parameters
Initial ramdisk
System Init Styles
Linux Runlevels
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

3. Software Maintenance
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

4. FileSystem Administraton
Partitioning Disks with fdisk
Partitioning Disks with parted
Filesystem Creation
Mounting Filesystems
Filesystem Maintenance
Persistent Block Devices
Resizing Filesystems
Filesystem Structures
Determining Disk Usage With df and du
Configuring Disk Quotas
Setting Quotas
Viewing and Monitoring Quotas
Filesystem Attributes
Backup Software

Logical Volume Management
Implementing LVM
Creating Logical Volumes
Manipulating VGs & LVs
Advanced LVM Concepts
SLES Graphical Disk Tool
RAID Concepts
Array Creation with mdadm
Software RAID Monitoring
Software RAID Control and Display

6. Remote Storage Administration
Remote Storage Overview
Remote Filesystem Protocols
Remote Block Device Protocols
File Sharing via NFS
NFS Clients
NFS Server Configuration
Implementing NFSv4
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

7. User/Group Administration
User and Group Concepts
User Administration
Modifying Accounts
Group Administration
Password Aging
Default User Files
Controlling Logins
Manual DS Client Configuration
SLES Graphical DS Client Configuration
System Security Services Daemon (SSSD)

8. Pluggable Authentication Modules (PAM)
PAM Overview
PAM Module Types
PAM Order of Processing
PAM Control Statements
PAM Modules

9. 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
User Private Group Scheme
Alternatives to UPG
SELinux Security Framework
SELinux Modes
SELinux Commands
Choosing an SELinux Policy
SELinux Booleans
Permissive Domains
SELinux Policy Tools
Basic Firewall Activation

10. 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
DNS Clients
DHCP Clients
SUSE YaST Network Configuration Tool
Network Diagnostics
Information from netstat and ss
Managing Network-Wide Time
Continual Time Sync with NTP
Configuring NTP Clients
Useful NTP Commands

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

12. Log File Administration
System Logging
Log Management
Log Anomaly Detector

13. 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
Corrupt Filesystems
RHEL6 Rescue Environment
SUSE Rescue Environment



An understanding of network concepts, and the TCP/IP protocol suite is helpful.



Students should already be comfortable working in a Linux or UNIX environment.