Advanced Linux System Administration

This course is specifically designed for students who have basic Linux Administration knowledge and looking for advanced administration skills in Linux. This course will teach you everything you need to know to be an advanced systems administrator.

Course Overview:

Linux Virtual Server Cluster:

• Introduction
• Components of an LVS Cluster.
• Background of the LVS Cluster.
• Hardware/Network Requirements.
• Cluster Node Interconnection Prerequisites.
• Configuring an LVS Cluster.
• Piranha Configuration Tool.

Linux Virtualization:

• Overview of Linux Virtualization.
• What is Hypervisor?
• Types of Virtualization.
• KVM + QEMU + Libvirt Architecture.
• Virtualization Requirements.
• Packages, Configuration tool & Service Daemon.
• Practice Lab Session.

Squid Proxy Server:

• Overview of Squid Proxy Server.
• Types of Proxy Server.
• Proxy Server Configurations & its packages.
• How proxy Server works.
• Practice Lab Session.

LDAP (Light Weight Directory Access Protocol):

• Overview of LDAP.
• Conceptual understanding of LDAP.
• Advantages of LDAP over NIS.
• LDAP Database Structure.
• Practice Lab Session.

Automating Installation with Kickstart:

• Overview of Kickstart Server.
• Features & configuration of kickstart server.
• Graphical mode to configure the kickstart config file.
• Deploying a new virtual system with kickstart.
• Practice Lab Sessions.

Network Teaming:

• Overview of Network Teaming.
• Policies of Network Teaming.
• Creating teaming virtual interface – (how to configure NIC Teaming as Active Backup (Failover).
• Managing Network Teaming.

Configuring iSCSI Targets & Initiators:

• About iSCSI.
• iSCSI fundamentals.
• iSCSI Components terminology.
• Practice Lab Sessions.

Managing SELinux Security:

• SELinux Security Concepts.
• SELinux Context.
• SELinux Modes.
• Lab on SELinux Modes.
• A practical approach to understanding SELinux.
• Lab - Change context temporarily.
• Lab - Change context permanently.
• Lab - SELinux inheritance and its pitfalls.
• SELinux Booleans.
• Lab - SELinux Booleans.
• Audit logs & Troubleshooting SELinux.

Postfix Mail Server Configuration:

• The structure of the Email System.
• Mail User Agent.
• Mail Transfer Agent.
• Mail Delivery Agent.
• SMTP
• Configuring an RHEL Email System.
• Postfix Pre-Installation Steps.
• Installing Postfix on RHEL 7.
• Configuring Postfix.
• Starting Postfix on an RHEL System.
• Configure a Null Client.

Relay host:

• Introduction Dovecot, Imap & pop3.
• Configuring Dovecot.
• Thunderbird - Mail User Agent (Configure Mail Box).