Red Hat Enterprise Linux Systems Administration

		Networking and Security Operations


			COURSE DESCRIPTION

    	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).
	

			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.


			COURSE TOPICS

		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)

               	 RHEL5 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

				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 RHEL5
				SSH
				Using SSH tunnels for secure graphical connections

				GRUB level security (boot files)				
 

		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
	        

			COURSE DURATION

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


			COURSE 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.