Enterprise Linux Systems Administration (LN4987)

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  • Video recording: 365 days of access to your course for viewing
  • Technical lab: Available for 15 days of online access
  • Class material: Delivered in digital format for everyone, downloadable, accessible during and after the training
  • Proof of attendance: Digital badge and completion certificate available for all participants
  • Fast and guaranteed schedule: Maximum wait of 4 to 6 weeks after participant registrations, guaranteed date

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

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Private class

Inquire for this training to be delivered exclusively for the members of your organization.

Training plan

  • 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
  • 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
  • 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
  • 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
  • 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
  • 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 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
  • 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)
  • 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 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
  • 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
  • Multiple IP Addresses
  • Configuring a DHCP server
  • Enabling IPv6
  • Interface Bonding
  • Interface Bridging
  • 802.1q VLANS
  • Tuning Kernel Network Settings
  • System Logging
  • Syslog-ng
  • Rsyslog
  • /etc/rsyslog.conf
  • Log Management
  • Log Anomaly Detector
  • 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.

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Language: English

Duration: 5 days / 35 hours

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Minimum number of participants: 6

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