Plan szkolenia
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
• Lab Tasks
○ Adjusting Kernel Options
○ Linux Kernel Driver Compilation
○ Introduction to Troubleshooting Labs
○ Troubleshooting Practice: Kernel Modules
Module 2: Systemd Overview
• System Boot Method Overview
• systemd System and Service Manager
• Modifying systemd services
• Systemd Service Sandboxing Features
• systemd Targets
• Legacy Support for SysV init
• Lab Tasks
○ Managing Services with Systemd's systemctl
○ Creating a systemd unit file
Module 3: GRUB2/Systemd Boot Process
• Booting Linux on PCs
• GRUB 2
• GRUB 2 Configuration
• 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
• Lab Tasks
○ Boot Process
○ Booting directly to a bash shell
○ GRUB Command Line
○ Basic GRUB Security
○ Troubleshooting Practice: Boot Process
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 & RHN Subscription Manager
• YUM Repositories
• YUM Repository Groups
• Compiling/Installing from Source
• Manually Installed Shared Libraries
• Rebuilding Source RPM Packages
• Lab Tasks
○ Managing Software with RPM
○ Creating a Custom RPM Repository
○ Querying the RPM Database
○ Installing Software via RPM & Source and
Rebuilding SRPMs
○ Troubleshooting Practice: Package Management
Module 5: Local Storage Administration
• Partitioning Disks with fdisk & gdisk
• Resizing a GPT Partition with gdisk
• Partitioning Disks with parted
• Filesystem Creation
• Persistent Block Devices
• Mounting Filesystems
• Resizing Filesystems
• Filesystem Maintenance
• Managing an XFS Filesystem
• Swap
• Filesystem Structures
• Determining Disk Usage with df and du
• Configuring Disk Quotas
• Setting Quotas
• Viewing and Monitoring Quotas
• Filesystem Attributes
• Lab Tasks
○ Creating and Managing Filesystems
○ Hot Adding Swap
○ Setting User Quotas
Module 6: LVM & RAID
• Logical Volume Management
• Implementing LVM
• Creating Logical Volumes
• Activating LVM VGs
• Exporting and Importing a VG
• Examining LVM Components
• Changing LVM Components
• Advanced LVM Overview
• Advanced LVM: Components & Object Tags
• Advanced LVM: Automated Storage Tiering
• Advanced LVM: Thin Provisioning
• Advanced LVM: Striping & Mirroring
• Advanced LVM: RAID Volumes
• gnome-disk-utility
• SLES Graphical Disk Tool
• RAID Concepts
• Array Creation with mdadm
• Software RAID Monitoring
• Software RAID Control and Display
• Lab Tasks
○ Creating and Managing LVM Volumes
○ Troubleshooting Practice: LVM
○ Creating and Managing a RAID-5 Array
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
• YaST NFS Server Administration
• 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
• Lab Tasks
○ Using autofs
○ NFS Server Configuration
○ iSCSI Initiator Configuration
○ Multipathing with iSCSI
Module 8: User/Group Administration
• Approaches to Storing User Accounts
• User and Group Concepts
• User Administration
• Modifying Accounts
• Group Administration
• Password Aging
• Default User Files
• Controlling Login Sessions
• RHEL DS Client Configuration
• SLES DS Client Configuration
• System Security Services Daemon (SSSD)
• Lab Tasks
○ User and Group Administration
○ Using LDAP for Centralized User Accounts
○ Troubleshooting Practice: Account Management
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
• Lab Tasks
○ Restricting superuser access to wheel group
membership
○ Using pam_nologin to Restrict Logins
○ Setting Limits with the pam_limits Modules
○ Using pam_limits to Restrict Simultaneous Logins
Module 10: Security Administration
• Security Concepts
• Tightening Default Security
• SuSE Security Checker
• Security Advisories
• Fine Grained Authorizations with Polkit
• 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
• SUSE Basic Firewall Configuration
• FirewallD
• Lab Tasks
○ User Private Groups
○ Using Filesystem ACLs
○ Exploring AppArmor
○ Exploring SELinux Modes
○ SELinux File Contexts
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
• SUSE YaST Network Configuration Tool
• Network Diagnostics
• Information from ss and netstat
• Hardware and System Clock
• Managing Network-Wide Time
• Continual Time Sync with NTP
• Configuring NTP Clients
• Useful NTP Commands
• Lab Tasks
○ Network Discovery
○ Basic Client Networking
○ NTP Client Configuration
Module 12: Advanced Networking
• Multiple IP Addresses
• Configuring a DHCP server
• IPv6
• Interface Aggregation
• Interface Bonding
• Network Teaming
• Interface Bridging
• 802.1q VLANS
• Tuning Kernel Network Settings
• Lab Tasks
○ Multiple IP Addresses Per Network Interface
○ Configuring IPv6
○ Troubleshooting Practice: Networking
Module 13: Log File Administration
• System Logging
• systemd Journal
• systemd Journal's journactl
• Secure Logging with Journal's Log Sealing
• gnome-system-log
• Rsyslog
• /etc/rsyslog.conf
• Log Management
• Log Anomaly Detector
• Sending logs from the shell
• Lab Tasks
○ Using the systemd Journal
○ Setting up a Full Debug Logfile
○ Remote Syslog Configuration
○ Remote Rsyslog TLS Configuration
Module 14: Monitoring & Troubleshooting
• System Status – Memory
• System Status – I/O
• System Status – CPU
• Performance Trending with sar
• Determining Service to Process Mapping
• Realtime Monitoring of Resources — Cgroups
• 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
• RHEL8 Rescue Environment
• SUSE Rescue Environment
• Lab Tasks
○ System Activity Reporter
○ Cgroup for Processes
○ Recovering Damaged MBR
Appendix A: Pre-Installation Considerations
• Pre-Installation Considerations
• Hardware Compatibility
• Multi-OS Booting
• Partition Considerations
• Filesystem Planning
• Selecting a Filesystem
Appendix B: Installing RHEL8
• Anaconda: An Overview
• Anaconda: Booting the System
• Anaconda: Common Boot Options
• Anaconda: Loading Anaconda and Packages
• Anaconda: Storage Options
• Anaconda: Troubleshooting
• FirstBoot
• Kickstart
• Network Booting with PXE
• A Typical Install
• Lab Tasks
○ Linux Installation
○ Automating Installation with Kickstart
Appendix C: Installing SLES12
• YaST Install Program Interface
• Network Installation
• SLP for SUSE Linux Installation
• Installation Choices
• Kernel Crash Dump Configuration
• Network Booting with PXE
• Creating AutoYaST2 Files
• Using AutoYaST2 files
• linuxrc Automation
• Installation Diagnostics
• After The First Reboot
• A Typical Install
• Lab Tasks
○ SUSE Linux Enterprise Server Installation
○ Automating Installation with AutoYaST
Appendix D: Manage Virtual Machines
• Virtualization: What and Why?
• Introducing libvirt
• libvirt: Basic Concepts
• libvirt: Storage Architecture
• libvirt: Network Architecture
• libvirt: Graphical Tools
• libvirt: Command Line Tools
• virsh: Basics
• virsh: Common Tasks
• virt-install
• Virtual Machine Guest Tools & Drivers
• libguestfs and guestfish
• Lab Tasks
○ Installing a Virtual Machine
Appendix E: Backups
• Backup Software
• Managing Optical Media
• Tape Libraries
• Backup Examples
• Lab Tasks
○ Using rsync and ssh for Backups
○ Using tar for Backups
○ Using cpio for Backups
○ Creating ISO Images for Backups
○ Using dump and restore for Backups
