Linux System Administration

Students Will Learn:

Installation and Configuration
Managing Software and Hardware
Managing Users and Groups
File Systems and File Security

Network Configuration
Apache Web Server
NFS, DHCP, and DNS
Samba File Sharing

Course Description: This hands on Linux administration course teaches students how to install, configure and maintain a Linux system in a networked environment. Students will not only learn to perform basic administrative tasks such as adding and managing users, creating and maintaining file systems, developing and implementing a security policy, and performing software installation and package management, but will also learn to perform Linux network-related tasks, including installing and supporting SSH, NFS, Samba, DNS, DHCP, and the Apache web server. Extensive hands on exercises are used throughout to reinforce learning and develop real competency.

The course includes comprehensive hands on practice installing and configuring Linux systems including CentOS 6 / Red Hat Enterprise Linux 6 / SuSE. Labs include adding and deleting users, backing up and restoring the system, adding/deleting software, automating the scheduling of tasks, creating file systems, managing remote access, and installing and tuning Samba and Apache, as well as working with modern system logging utilities such as rsyslog. Class participants will also discuss common security issues, and be introduced to several tools, such as PAM modules, that can help secure the operating environment. Upon completion of this course, students will be prepared to competently maintain a Linux system in a networked business environment.

Course Prerequisites: Students should be experienced UNIX or Linux users. Knowledge of the Linux file system and commands equivalent to attendance in the UNIX/Linux Fundamentals course is required.

Linux System Administration Course Overview:

System Administration Overview UNIX, Linux and Open Source Duties of the System Administrator Superusers and the Root Login Sharing Superuser Privileges with Others (su and sudo Commands) TCP/IP Networking Fundamentals Online Help	Installation and Configuration Planning: Hardware and Software Considerations Site Planning Installation Methods and Types Installation Classes Partitions Logical Volume Manager - LVM File System Overview Swap Partition Considerations Other Partition Considerations The Linux Boot Loader: grub Software Package Selection Adding and Configuring Peripherals Printers Graphics Controllers Basic Networking Configuration Booting to Recovery Mode
Booting and Shutting Down Linux Boot Sequence The upstart Daemon System Startup and Shutdown Scripts The Traditional /etc/inittab File Run Levels The chkconfig Command The service Command Network Adapters Shutdown Commands Handling Power Failures	Managing Software and Devices Identifying Software Packages Using rpm to Manage Software Using yum to Manage Software Installing and Removing Software Identifying Devices Displaying Device and System Information (PCI, USB) Plug and Play Devices Device Configuration Tools
X Window System Administration X Window System Introduction Configuring Xorg Utilities for Configuring X Windows Window Managers Desktop Environments	Managing Users and Groups Setting Policies User File Management The /etc/passwd file The /etc/shadow file The /etc/group file The /etc/gshadow file Adding Users Modifying User Accounts Deleting User Accounts Working with Groups Setting User Environments Login Configuration Files
The Linux File System Filesystem Types Conventional Directory Structure Mounting a File System The /etc/fstab File Special Files (Device Files) Inodes Hard File Links Soft File Links Creating New File Systems with mkfs The lost+found Directory Repairing File Systems with fsck The Journaling Attribute File and Disk Management Tools	Linux File Security File Permissions Directory Permissions Octal Representation Changing Permissions Setting Default Permissions Access Control Lists (ACLs) The getfacl and setfacl commands SUID Bit SGID Bit The Sticky Bit
Working with the Linux Kernel Linux Kernel Components Types of Kernels Kernel Configuration Options Recompiling the Kernel	Shell and Perl Scripting Shell Script Fundamentals Bash Shell Syntax Overview Shell Script Examples Fundamentals of Perl Using Perl for Administration Perl Script Examples
Controlling Processes Characteristics of Processes Parent-Child Relationship Examining Running Processes Background Processes Controlling Processes Signaling Processes Killing Processes Automating Processes cron and crontab at and batch System Processes (Daemons)	System Backups Backup Concepts and Strategies User Backups with tar and cpio System Backup Options The dump and restore Commands
Troubleshooting the System Common Problems and Symptoms Troubleshooting Steps Repairing General Boot Problems Repairing Boot Problems Repairing the GRUB Boot Loader Memory Allocation Hard Drive Problems Configuring Shared Libraries System Logs System Logging with ryslogd	Basic Networking TCP/IP Fundamentals Review of Internet Addressing Network Services Overview Commonly Available Services Fundamental Network Configuration Files Network Control Scripts and Daemons Enabling Services Using xinetd
The Apache Web Server What is Apache? Configuring the Apache Web Server Common Directives Apache Virtual Hosting	NFS, DHCP, and DNS Network File System (NFS) How to Configure the NFS Server Exporting NFS Shares How to Configure the NFS Client Implementing the Dynamic Host Configuration Protocol (DHCP) DHCP Configuration with Fixed and Leased Addresses Purpose of DNS Configuring DNS (bind) The rndc Command Zone Files Running the named Daemon Legacy Networking Commands: telnet, ftp, rsh, rlogin, rcp Installing and Configuring Secure Shell (ssh)
Introduction to System Security Security Overview Maintaining System Security Server Access Physical Security Network Security Security Tools Port Probing with nmap Intrusion Detection and Prevention PAM Security Modules Scanning the System Maintaining File Integrity Using Firewalls Packet Filtering with iptables Masquerading with iptables	The Samba File Sharing Facility Using Samba to Connect Homogeneous File Systems (Linux-to-Linux) Using Samba to Connect Heterogeneous File Systems (Linux-to-Windows) Configuring Samba Uing the smbclient Command Mounting SMB Shares

Student Testimonials

"The instructor did an excellent job with the class. It was very informational and enjoyable. He did a good job mixing in real world views to support the lessons."
– B.W., Kuhn's Brothers Log Homes

"I would like to thank HOTT for doing a great job organizing this course. The instructor was amazing and really knew his material. I would most definitely consider attending another HOTT course."
– J.K., CUSA Technologies

Linux System Administration

Students Will Learn:

Multiple Training Locations - Convenience and Cost Control

Regularly Scheduled Courses in 16 Cities Across the United Kingdom