
View and modify Linux ethernet settings, change IP addresses manual or auto, set the default gateway, update the hostname, and delete a network connection.
Explain how a local DNS server resolves domain names to IP addresses. Understand how a client uses iterative lookups and public DNS to reach a remote host.
Explore the root name servers and how the domain name system enables global internet communication, including the structure of top level domains, second level domains, and domain authorities.
Explore types of DNS servers, including master and slave for subdomains. See how forwarders, caching, and root and top-level domains resolve queries and hide the local network from the internet.
Learn to configure iSCSI targets and initiators, connect storage over IP to Linux systems, and understand how targets and initiators share storage across a SAN.
Explore how masquerading and port forwarding enable access to a private web server behind a firewall by translating public and private IPs and forwarding requests.
Configure a small private web page on an internal server and enable firewall masquerading and port forwarding to expose it to the public internet.
Learn how a client and a secure web server establish encrypted communication over port 440 using ssl, certificates signed by certificate authorities, and a public key exchange.
Configure the mynetworks parameter to specify which networks can use your Postfix server, limiting accepted mail to trusted networks and preventing abuse.
Course Description:
Linux Certified System Admin - SA3
This Training Syllabus comprises of 3 Module , first two module is from (RH-124 , RH-134), if you go with Red Hat System Administration III (RH-254) course then it will be R-H-C-E Training.
Linux Certified System Administrator
· Linux Certified System Admin - SA1
· Linux Certified System Admin - SA2
Red Linux Certified Engineer
· Linux Certified System Admin - SA3 ==> This course module will teach to third book
This course specifically designed for students who have completed Linux Certified System Admin - SA1/SA2. Linux System Administration is designed for experienced Linux system administrators with the Linux Certified System Administrator certification or equivalent skills.
This course is intended to help students broaden their ability to administer Linux systems at an enterprise level.
Course Outline
Introduction
· Linux System Administration II
· Installation of Linux Enterprise Linux 7
Controlling Services & Daemons
· Overview of Systemd in RHEL 7
· About Daemons, Process & Services
· Primary advantages of systemd over init
· Features of systemd
· Practice Lab Sessions
Managing IPv4 Networking
· NetworkManager Overview
· Viewing networking information
· Familiar with nmcli command
· Configure & modify the Nic Interface using nmcli
· 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
Managing DNS for Servers
· Overview of DNS Servers
· Concepts of DNS
· Root Name Servers
· How dns works over the internet?
· BIND Packages
· Types of DNS Servers
· Overview of Resource records
· Configuration Steps of DNS Server
· Practice Lab Session
Configuring iSCSI Targets & Initiators
· About iSCSI
· iSCSI fundamentals
· iSCSI Components terminology
· Practice Lab Sessions
NFS
· Overview of NFS
· Services of NFS
· How NFS works?
· Various configuration files of NFS
Writing Bash Scripts
· Bash Shell Scripting basics
· Writing Bash Scripts
· Variables & for loops
· Practice Lab Sessions
Conditional Structures
· if/then Statement
· case statement
· Practice Lab Sessions
Firewalld
· Overview of firewalld in RHEL 7
· Features of firewalld & its advantages over iptables
· Enable/Disable a Service
· Lab on port forwarding
· Managing Rich Rules
· Lab Session on Rich Rules
· Masquerading & port forwarding
· Practice Lab Sessions
Postfix Mail Server Configuration
· The structure of the Email System
1.1 Mail User Agent
1.2 Mail Transfer Agent
1.3 Mail Delivery Agent
1.4 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
· Relayhost
· Introduction Dovecot, Imap & pop3
· Configuring Dovecot
· Thunderbird - Mail User Agent ( Configure Mail Box)
Apache Web Server Administration
· Basic Setup
· Verify installation
· Package files
· Main configuration files
· Backup
· Edit the httpd.conf configuration file
· ServerRoot
· PidFile
· ServerName
· Add site to hosts file
· DocumentRoot
· ErrorLog
· Listen
· Create your HTML documents
· Start the Web Server
· Access the web site
· Summary of basic setup
· Directory tags
· Order allow, deny
· Indexes
· Virtual Hosts
· .htaccess
· Create .htaccess file
· Create .htpasswd file
· Copy .htaccess to restricted directory
· Configure httpd.conf to allow authentication via .htaccess
· Encrypted Sessions
· Main configuration file(s)
· Edit the ssl.conf configuration file
· Openssl & Mod-ssl
· LoadModule
· Listen
· VirtualHost
· Create SSL certificate
· Create Certificate Authority-CA
· Create server key
· Edit ssl.conf configuration file
· Server Certificate
· Server Private Key
· Certificate Authority