Linux Training :Red Hat Enterprise Linux Systems Administration (Networking and Security Operations)

This course will teach the commands and methods needed to setup and manage advanced networking, security, and performance management on a RHEL5 system. The course will also use a problem solving approach in the lab exercises to teach system administrators advanced topics, for long-term mangement of the system.

This course is the equivalent to Red Hat course 253.

Systems: Red Hat Enterprise Linux Version 5 (all update levels)

Linux Training Prerequisites

It is assumed that the participant has successfully completed the Red Hat Linux Essentials (RH 033) and RHEL5 Systems Administration Essentials (RH 131) courses, or has equivalent system time as a user and a working systems administrator.

Linux Training Course duration

This course normally requires three (3) days, approximately 60% lecture, and 40% lab time.

Linux Training Course Objectives

On completion of this course, a systems administrator should be able to install, update, and boot the RHEL5 operating system; setup a RHEL5 system to act as a: DNS server (and client), VSFTPD server, Apache web server, email server, SAMBA host. Topics covering basic encryption, performance management tools, and usage of PAM will also be covered.

Linux Training Course outline

Advanced RHEL5 Networking Features

automated network attributes setup
network address types
network information files
controlling telnet services
controlling trusted host services
TCP Wrappers
syslog (and remote logging)
logwatch

Domain Name System (DNS) Server / Client Setup

reasons for DNS
DNS layout and overview
FQDN (fully qualified domain (host) name)
DNS server types
name resolution
primary name server setup
secondary and caching-only name server setup
testing a primary name server
resolver host setup
controlling named (via rndc)

RHEL Server Setups

SAMBA

SAMBA overview
basic SAMBA server installation
accessing SAMBA server shared files
SAMBA shared printer setup and access

sendmail

mail components
sendmail daemon
changing sendmail configuration files
replacing sendmail with postfix

web server

Apache Web Server packages
configuration files
logging files
executable scripts

ftp

ftp servers overview
gssftp
vsftpd

NFS

NFS server setup
NFS client
automounter

DHCP

DHCP client setup
DHCP server setup

RHEL5 Security

Unix types

Administrator responsibilities
Basic security considerations
Types of security and attacks
Reacting to a security problem
special file attributes (SUID, SGID, STICKY)
Access Control Lists (ACLs)
Default Access Control Lists (ACLs)
PAM (Pluggable Authentication Modules)
IPTABLES (firewall)
IPSEC
Data encryption in RHELL5 (files and filesystems
SSH
Using SSH tunnels for secure graphical connections

Performance Management in RHEL5

overview of performance monitoring tools
obtaining and interpreting memory management data
obtaining and interpreting I/O subsystem data
obtaining and interpreting CPU data
obtaining information on sockets and network adapters

Contact Information
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