Training plan
Module 1: Linux kernel & devices
- Hardware Discovery Tools
- Configuring New Hardware with hwinfo
- Kernel Hardware Info “ /sys/
- /sys/ Structure
- udev
- Managing Linux Device Files
- List Block Devices
- SCSI Devices
- USB Devices
- USB Architecture
- Kernel Modules
- Configuring Kernel Components and Modules
- Handling Module Dependencies
- Configuring the Kernel via /proc/
- Console
- Virtual Terminals
- Keyboard & locale configuration
- Serial Ports
- Random Numbers and /dev/random
Module 2: SYSTEMD overview
- System Boot Method Overview
- systemd System and Service Manager
- Modifying systemd services
- Systemd Service Sandboxing Features
- systemd Targets
- Using systemd
- Linux Runlevels Aliases
- Legacy Support for SysV init
Module 3: GRUB2/SYSTEMD boot process
- Booting Linux on PCs
- GRUB 2
- GRUB 2 Configuration
- The Boot Loader Specification
- GRUB 2 Security
- Boot Parameters
- Initial RAM Filesystem
- init
- Systemd local-fs.target and sysinit.target
- Systemd basic.target and multi-user.target
- Legacy local bootup script support
- System Configuration Files
- RHEL8 Configuration Utilities
- SLES12 Configuration Utilities
- Shutdown and Reboot
Module 4: 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
Module 5: FileSystem Administraton
- Partitioning Disks with fdisk
- Partitioning Disks with parted
- Filesystem Creation
- Mounting Filesystems
- Filesystem Maintenance
- Persistent Block Devices
- Resizing Filesystems
- Swap
- Filesystem Structures
- Determining Disk Usage With df and du
- Configuring Disk Quotas
- Setting Quotas
- Viewing and Monitoring Quotas
- Filesystem Attributes
- Backup Software
Module 6: 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
Module 7: 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
Module 8: 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)
Module 9: 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
Module 10: 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
- AppArmor
- SELinux Security Framework
- SELinux Modes
- SELinux Commands
- Choosing an SELinux Policy
- SELinux Booleans
- Permissive Domains
- SELinux Policy Tools
- Basic Firewall Activation
Module 11: 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
- Network Diagnostics
- Information from netstat and ss
- Managing Network-Wide Time
- Continual Time Sync with NTP
- Configuring NTP Clients
- Useful NTP Commands
Module 12: Advanced Networking
- Multiple IP Addresses
- Configuring a DHCP server
- Enabling IPv6
- Interface Bonding
- Interface Bridging
- 802.1q VLANS
- Tuning Kernel Network Settings
Module 13: Log File Administration
- System Logging
- Syslog-ng
- Rsyslog
- /etc/rsyslog.conf
- Log Management
- Log Anomaly Detector
Module 14: 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
Recommended Prerequisite Knowledge
- Familiarity with using the Linux command line.
- Experience in user management, file permissions, and process management in Linux.
- Knowledge of system administration concepts, such as software installation, service management, and basic system configuration.
- Experience with file system management, including creating and managing partitions, disk quotas, and managing LVM (Logical Volume Management).
- Understanding of networking concepts, including IP addressing, subnetting, and configuring network interfaces on Linux.
- Knowledge of basic Linux security, such as configuring SELinux or AppArmor, and managing firewalls.