Linux Administration Online Training

Linux Administration Online Course Content

Duration of the Course

• 30 Hrs

Introduction to Linux and UNIX

• History of UNIX & LINUX
• Basic Concepts of Operating Systems, Kernel, shell and file system structure

 Installation of Linux

• Different types of Installation Methods
  • GUI
  • Text

 Linux System Structure

• Basic concepts of Linux
• Differences between Red Hat Enterprise Linux & CentOS
• Basic bash commands of Linux
• Editors [GUI & CLI]

Boot Process of Linux

• What is booting and boot process of Linux?
• Init Process or Runlevels

Software Package Administration

• Description of a Repository
• Difference between RPM and YUM
• Configuration of YUM server
• Installing and deleting software packages
• Querying and updating software packages

User and Group Administration

• Types of Users in Linux
• Creating and deleting Users and Groups
• Modifying Users profile
• Adding Users into the Groups
• Important system files related to User & Group administration

Advanced File Permissions

• Importance of Permissions
• Types of Permissions
• User level Permissions
• Group level Permissions
• Setting Access Level Permissions on Users & Groups

 Disk Partitioning and Mounting File System

• Definition of Partition
• Types of Partitions
• Difference between ext2, ext3 and ext4 file systems
• Creating partitions using fdisk utility
• Formatting partitions using mkfs to create filesystems
• Mounting various filesystems temporarily and permanently

Logical Volume Management

• What is LVM?
• Conversion of Partition into Physical Volume
• Creating volume groups and logical volumes
• Mounting the logical volume filesystems
• Extend and Reduce the logical volumes.
• Data storage using LVM
• Renaming volume groups and logical volumes
• Removing physical volume, volume group and logical volume

Backup and Recovery

• Introduction to various types of backup media
• Backup and restoring using tar commands
• Automation of Jobs

NFS

• Configuring NFS server
• Mounting NFS exports on clients

 NIS

• Basics of NIS
• Configuring NIS Servers and client
• Creating NIS users

DNS

• Basics of Internet
• Basics of DNS and BIND 9
• Configuring DNS primary server

DHCP

• Configuring Linux as DHCP Server
• Configuring various clients for DHCP Server

Web Server (Apache)

• Basics of Web Service
• Introduction to Apache
• Configuring Apache for main site
• Configuring Apache for multiple sites using IP-based, port based and name-based

FTP Server

• Basics of File Transfer Protocol.
• Configuring vsftpd for anonymous ftp service.

Proxy Server (SQUID)

• Basics of proxy services
• Configuring proxy services
• Creating ACL’s for controlling access to internet

 Samba Server

• Basics of file sharing in Windows
• Configuring Samba service for file sharing with windows systems

Mail Server Configuration

• Basics of Mail Servers
• Configuring SMTP service using sendmail

 Log Server

• Importance of logs
• Configuring Syslog Messages

 Network Connections

• Configuring Physical IP Address
• Configuring Virtual IP Address
• Enabling & Disabling the Network Connections
• Iptables

 Basics of Shell scripting

 Troubleshooting Linux

• Recovering the super user password.
• Troubleshooting network related problems.

MONITORING PROJECTS

PROJECT 1: OVERSEAS using NAGIOS

Knowledge Transfer:

• Definition of Monitoring, Benefits and types of Monitoring tool
• Process based concepts on Threshold value, Alerts, Priority levels and Escalation Format

Roles of Linux Engineer:

• Worked as a Linux Engineer in 24/7 team responsible to maintain servers and provide FCR at any point of time.
• Monitoring/Troubleshooting the following alerts/issues.
  1. CPU
  2. Load Average
  3. Memory Usage
  4. Network Issues
  5. Disk Space issues
  6. Service Status
  7. Website Blips
• Perform the TRIAGE with regards to the alerts by following SOP and find the RCA.
• Escalating the alerts to level-2 team incase unable to provide resolution.
• Creating a production ticket for each and every alert.
• Open trouble tickets with the 3^rd party service provider for any network outages, site blips, database issues & Disk failed issues.

PROJECT 2: LINKTRANET using ZABBIX

Knowledge Transfer:

• Definition of Monitoring, Benefits and types of Monitoring tool
• Process based concepts on Threshold value, Alerts, Priority levels and Escalation Format

Roles of Linux Engineer:

• Monitoring/Acknowledging the following alerts/issues.
• Worked as a Linux Engineer in 24/7 team responsible to maintain servers and provide FCR at any point of time.

1. CPU
2. Load Average
3. Memory Usage
4. Network Issues
5. Disk Space issues
6. Service Status
7. Website Blips

• Perform the TRIAGE with regards to the alerts by following SOP and find the RCA.
• Pulling and analyzing the logs from syslog server.
• Escalating the alerts to level-2 team incase unable to provide resolution.
• Creating a production ticket for each and every alert.
• Open trouble tickets with the 3^rd party service provider for any network outages, site blips, database issues & Disk failed issues.