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RH133 - Red Hat Linux System Administration
RH133 - Red Hat Linux System Administration
Introduction - RH133: Red Hat Linux System Administration
Copyright
Welcome
Red Hat Enterprise Linux
Red Hat Enterprise Linux Variants
Red Hat Subscription Model
Contacting Technical Support
Red Hat Network
Red Hat Services and Products
Fedora and EPEL
Audience and Prerequisites
Objectives
Pre/Post-Assessments
Lab Exercises
Classroom Network
Notes on Internationalization
Lecture 1 - Administrative Access
Objectives
Console Access
XOrg: Configuring the X11 Server
Review: Remote Access with SSH
Review: Implementing
ssh
RSA Keys
Remote X Clients
Multiplexing or Sharing Terminal Sessions with
screen
Review: Privilege Escalation
Configuring
sudo
Domain Management with
virt-manager
Domain Management with
virsh
End of Lecture 1
Lecture 2 - Package Management
Objectives
Software as Packages
About yum
Enabling Private yum Repositories
Querying with yum
Managing Packages with yum
About the Red Hat Network
Red Hat Network Client
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RH133 - Red Hat Linux System Administration
Creating a Private
yum
Repository
Advanced Installation and Removal with rpm
Updating to a New Kernel RPM
Advanced Queries with rpm
Verifying with rpm
End of Lecture 2
Lecture 3 - System Services and Security
Objectives
Monitoring System Logs
syslogd
and
klogd
Configuration
Review: Automating Tasks with
cron
System crontab Files
Default Daily Cron Jobs
The
anacron
System
Managing Printers with CUPS
Accurate Time with Network Time Protocol
SELinux
SELinux Policy: Troubleshooting
End of Lecture 3
Lecture 4 - System Initialization
Objectives
Checking Your System State
Runlevels
Controlling Services
Boot Sequence: Detailed Overview
GRand Unified Bootloader (GRUB)
GRUB Components and Configuration
Kernel Initialization
init
Initialization
System Initialization
Standalone Service Initialization
Non-Service Startup
Transient Services
End of Lecture 4
Lecture 5 - Kernel Monitoring and Configuration
Objectives
The Linux Kernel
Kernel Components
Kernels and Support Limits
Monitoring Processes and Resources
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RH133 - Red Hat Linux System Administration
Kernel Monitoring and Configuration with
/proc
and
/sys
Kernel Configuration with
sysctl
Exploring Hardware Devices
Review of
/dev
Managing Devices With udev
Kernel Modules
Utilizing and Configuring Kernel Modules
The Initial RAM Disk (initrd)
End of Lecture 5
Lecture 6 - Network Configuration
Objectives
Network Interfaces and
/sbin/ip
Network Configuration Utilities
Interface Configuration Files
Device Aliases
Configuring the Routing Table
Verifying IP Connectivity
Hostnames
DNS Configuration
Filtering Network Traffic
Network Monitoring Utilities
Ethernet Channel Bonding
End of Lecture 6
Lecture 7 - Filesystem Administration
Objectives
Partitions and Filesystems
Inodes and Directories
Managing Removable Media
Accessing Network File Shares using NFS
Mounting NFS Shares On-Demand
End of Lecture 7
Lecture 8 - Additional Storage
Objectives
Adding New Filesystems
Partitioning a Physical Disk
Making Filesystems
Mounting Filesystems with
mount
Mount Points and
/etc/fstab
Unmounting Filesystems
Modifying a Filesystem Superblock
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RH133 - Red Hat Linux System Administration
Adding Virtual Memory
End of Lecture 8
Lecture 9 - User Administration
Objectives
Review: User and Group Databases
Adding a New User Account
Modifying / Deleting User Accounts
Password Aging Policies
Administering Auxiliary Groups
Configuring the Quota System
Managing Quotas
End of Lecture 9
Lecture 10 - Filesystems for Group Collaboration
Objectives
Review: Viewing/Setting Ownership and Permissions
Review: Default File Ownership and Permissions
User Private Groups
Special Directory Permissions
Access Control Lists (ACLs)
Viewing and Managing ACLs
Review: Permission Precedence
Collaborate with Multiple Groups
End of Lecture 10
Lecture 11 - Centralized User Administration
Objectives
Components of Authentication
Enabling Centralized Authentication
Network Information Service (NIS)
NIS Client Tools
Lightweight Directory Access Protocol (LDAP)
LDAP Client Tools
Authentication Configuration In-depth
Name Service Switch (NSS)
Pluggable Authentication Modules (PAM)
Configuring Centralized Home Directories
Authentication Review
End of Lecture 11
Lecture 12 - Software RAID
Objectives
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RH133 - Red Hat Linux System Administration
Redundant Array of Inexpensive Disks
Adding a Software RAID Device
Software RAID Monitoring
Software RAID Recovery
End of Lecture 12
Lecture 13 - Logical Volume Management
Objectives
What is Logical Volume Manager (LVM)?
LVM Tools
Creating Logical Volumes
Resizing Logical Volumes
Resizing Volume Groups
Logical Volume Manager Snapshots
Using LVM Snapshots
End of Lecture 13
Lecture 14 - Virtualization and Automated Installation
Objectives
Virtualization with Xen
Preparing Domain-0
Installing a New Domain-U
Install Automation with Kickstart
Starting a Kickstart Installation
Anatomy of a Kickstart File
Kickstart: Commands Section
Kickstart: Commands Section
Kickstart: Packages Section
Kickstart: Scripts Section
Creating a Network Installation Server
End of Lecture 14
Lecture 15 - Troubleshooting with Rescue Mode
Objectives
Method of Fault Analysis
Gathering Additional Data
Things to Check: Boot Process
Recovery Runlevels
Filesystem Problems During Boot
Rescue Environment
Rescue Environment Utilities
Rescue Environment Details
End of Lecture 15
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