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Курсы Hewlett Packard Enterprise

Enterprise Linux System Administration

 
Код курса  Код: H7091S(GL250)    Заявка  Предварительная запись    Продолжительность  Кол-во часов: 40 , Кол-во дней: 5



This is an in-depth course that explores installation, configuration and maintenance of Linux systems. The course focuses on issues universal to 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; filesystem administration, including quotas, FACLs, RAID and LVM; task automation; client networking; SELinux; software management; log files; troubleshooting; and more. 

Prerequisites 

Students should already be comfortable working in a Linux or Unix environment. Fundamentals such as the Linux filesystem, process management, and how to edit files will not be covered in class. An understanding of network concepts, and the TCP/IP protocol suite is helpful. These skills are taught in the U8583S "Linux Fundamentals" course.

Supported distributions 

  • Oracle Linux 7 
  • Red Hat Enterprise Linux 7 
  • SUSE Linux Enterprise 12

Detailed course outline 

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 
  • systemd Targets 
  • Using systemd 
  • Linux Runlevels Aliases 
  • 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 
  • RHEL7 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 
  • RHEL7 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 RHEL7 
  • 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 Task
  • 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

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