Duration: 5 Days

What you will learn The Oracle Linux System Administration course covers a range of skills including installation, using the Unbreakable Enterprise Kernel, configuring Linux services, preparing the system for the Oracle Database, monitoring and troubleshooting.

This course teaches you how to handle typical issues faced by administrators in areas including authentication, securing and monitoring. You learn to understand the kernel development model and learn about Linux distributions. You hear about Oracle’s comprehensive solutions and Oracle’s contributions to the Linux community.

Learn To: Enable kernel features. Set up users and groups. Configure system logging, the boot process, the network,and storage. Install additional software packages . Keep the kernel up to date using Ksplice. Configure services such as NFS, FTP, OpenSSH, PAM.

Benefits To You Oracle Linux brings you the latest Linux innovations, delivering extreme performance, advanced scalability, and reliability for enterprise applications and systems. Implementing Ksplice provides you zero down time kernel updates.

Audience Database Administrators Support Engineer System Administrator Technical Administrator

Related Training Required Prerequisites Must complete the Unix Basics pre-requisite course or equivalent knowledge Types of user accounts Unix shell command line features Working with files and directories in Unix UNIX and Linux Essentials

Suggested Prerequisites Archiving and compressing files in Unix

Basic shell scripting Text editing using vi Unix process control

Course Objectives Perform Security Administration (iptables, chroot, TCP wrappers) Prepare Oracle Linux system for Oracle database Troubleshoot problems and perform corrective action Install software packages from Unbreakable Linux Network and other repositories Use Ksplice to update the kernel on a running system Configure system logging Load and configure the Unbreakable Enterprise Kernel Maintain swap space Install Oracle Linux Load kernel modules and configure kernel module parameters Perform User and Group administration Create file systems Use Logical Volume Manager (LVM) Configure RAID devices Configure File Sharing services (NFS, FTP, OpenSSH)

Course Topics Course Introduction Virtualization Elements of course environment Course structure

Introduction to Oracle Linux Development of Linux Kernel Linux kernel development model Linux distributions Oracle’s commitment to the success of Linux Oracle’s technical contributions to the Linux community Oracle’s Unbreakable Enterprise Kernel (UEK)

Installing Oracle Linux Obtaining Oracle Linux Oracle Software Delivery Cloud Anaconda installer Installation steps Firstboot tool

Linux Boot Process Linux boot process init process SysV init runlevels /etc/rc.d directory Configure services for runlevels Xinetd service Upstart

System Configuration Configuring system time Using Network Time Protocol (NTP) System configuration files The proc filesystem The sysfs filesystem The sysctl utility

Package Management Introduction to Oracle Linux package management The rpm utility Oracle Public Yum server Yum configuration Yum utility Oracle Unbreakable Linux Network (ULN) ULN channels Switching from RHN to ULN

Ksplice Introduction to Ksplice How Ksplice works Ksplice implementation Installation instructions Using Ksplice Uptrack Ksplice Uptrack command summary Ksplice Offline Client

Automate Tasks Automating system tasks Configuring cron jobs Other cron directories and files The crontab utility Configuring anacron jobs The at and batch utilities

Kernel Module Configuration Loadable Kernel Modules (LKM) Using the lsmod utility Using the modinfo utility Loading and unloading kernel modules Using the modprobe utility The insmod, depmod, and rmmod utilities ASM Cluster File System (ACFS) and ASM Dynamic Volume Manager (ADVM) drivers Kernel module parameters

User and Group Administration User and group configuration files Adding a user account Modifying and deleting user accounts Group account administration User Private Groups (UPG) Password configuration User Manager Tools su and sudo commands

File Systems Disk Partitions Partition Table Manipulation Utilities File System Types Making File Systems Mounting File Systems The /etc/fstab File Swap Space

Storage Administration Logical Volume Manager Physical Volume Utilities Volume Group Utilities Logical Volume Utilities RAID levels

Network Configuration Network interfaces Network configuration files Network interface utilities Address Resolution Protocol (ARP) Network interface bonding Virtual Local Networks (VLANs) The route utility NetworkManager

File Sharing NFS server configuration The /etc/exports file Starting the NFS services The exportfs utility NFS client configuration Automounting filesystems vsftpd configuration options

OpenSSH Service OpenSSH configuration Using OpenSSH utilities The ssh, scp, and sftp utilities Using the ssh-keygen utility Connecting to a remote system without supplying a password Using ssh-agent Using ssh-add

Pluggable Authentication Modules (PAM) Introduction to PAM PAM module types PAM control flags PAM implementation examples The /etc/pam.d/reboot file The /etc/pam.d/login file

Security Administration The chroot utility Implementing a chroot jail The named and vsftpd services use of chroot jail Firewall configuration tool iptables terminology Beginning optables maintenace Using the iptables utility TCP wrappers

Oracle on Oracle Oracle software user and group accounts System resource tuning and network tuning Linux shared memory kernel parameters Semaphores kernel parameter File handles and Asynchronous IO (AIO) kernel parameter Oracle-related shell limits Configuring HugePages Oracle ASM

System Monitoring The sosreport utility The iostat, mpstat, vmstat, sar, top, iotop, strace, netstat, and tcpdump utilities Wireshark GUI and tshark CLI OSWatcher Black Box (OSWbb) OSWatcher Black Box Analyzer (OSWbba) Enterprise Manager Ops Center Spacewalk

System Logging System log file configuration rsyslog.conf Global directives, modules, rules, and templates Facility/Priority-based filters rsyslog Actions rsyslog Templates Configuring logrotate Use logwatch

Troubleshooting Two-phased approach to troubleshooting Operating system logs The dmesg utility Troubleshooting resources Problem causes Boot problems NFS problems