Linux Administration Training Overview
Accelebrate's Introduction to Linux Administration course teaches students how to install, configure, maintain, and secure Linux systems.
NOTE: This class can be taught using the Linux distribution of your choice.
Location and Pricing
Accelebrate offers instructor-led enterprise training for groups of 3 or more online or at your site. Most Accelebrate classes can be flexibly scheduled for your group, including delivery in half-day segments across a week or set of weeks. To receive a customized proposal and price quote for private corporate training on-site or online, please contact us.
In addition, some Programming courses are available as live, online classes for individuals.
Objectives
- 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
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.
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
Training Materials:
All attendees receive comprehensive courseware.
Software Requirements:
Attendees will not need to install any software on their computer for this class. The class will be conducted in a remote environment that Accelebrate will provide; students will only need a local computer with a web browser with a stable Internet connection. Any recent version of Microsoft Edge, Mozilla Firefox, or Google Chrome will be fine.
