AUDIENCE:   Users who have attended the Enterprise Linux Administration course and require the advanced techniques and skills in order to integrate RHEL, Fedora or CentOS 5.x systems into their networks. PREREQUISITES:   The course assumes the delegate has already gained a good understanding of installing and using Enterprise Linux (RHEL). A knowledge of Linux Administration e.g. from attending our Enterprise Linux System Administration course would be of benefit. DURATION:   5 days. Hands on OBJECTIVES:   Linux is rapidly finding its way into business, education and government. Due to its outstanding reliability and performance, Linux is being used extensively for file, database and web server applications. While there are many Linux distributions, Red Hat Linux is by far the most popular. The Enterprise Linux Advanced Administration course will allow delegates to create a local area network; set-up a Network File System server and clients; Network Information Services and DNS. Delegates will also be introduced to Samba to enable Windows based systems access to Linux services; and Apache for web server applications. Course Objectives: - Kernel Services & configuration - Recompiling the Linux Kernel - Introduction to Linux RAID - Introduction to Logical Volume Management - Setting up network client services - Sharing files with NFS - Sharing Windows and Linux resources with Samba - Setting up a proxy server with Squid - Setting up Network Information Services (NIS) - Configuring DHCP servers & clients - Setting up Domain Name Service (DNS) & BIND - Using Apache to provide web services. - Setting up E-Mail services - Setting up telnet and FTP Services - Operational recovery & security COURSE CONTENT:   1. Kernel Services & Configuration Kernel Basics Kernel Versions Kernel Sources Recompiling a Kernel 2. Software RAID & Logical Volume Management RAID levels Mirroring a /home Partition Logical Volume management 3. Apache The Apache web server The httpd.conf file Apache Access Configuration Virtual hosts 4. The Squid Proxy Server Squid files & directories Basic configuration Configuration options Security options 5. Network File System NFS server configuration & operation The /ec/exports file NFS configuration tool NFS performance NFS client configuration 6. File Transfer Protocol Configuring the vsFTPd process vsFTP security 7. Samba Services Samba background Configuring Samba client Configuring Samba Server Configuring Samba users The Samba configuration utility 8. Domain Name Service Understanding DNS, Zones, Domains & Delegation The Berkeley Internet Name Domain (BIND) DNS Configuration files Caching only name server Slave name server Forwarding only name server The named.ca file The zone files The reverse zone files DNS configuration utility 9. Electronic Mail Definition of Mail agents Configuring Dovecot for incoming mail Configuring POP & IMAP Configuring sendmail for basic operation Configuring Postfix for basic operation E-mail clients 10. Other network services Extended Internet Services Daemon (xinetd) Secure Shell Package Dynamic Host Configuration Protocol Network Time Protocol 11. The X Window System X clients & servers The xorg.conf file X configuration tools Running remote X applications Desktops & window managers 12. Securing Services Use of tcp_wrappers Firewall and packet filtering Network address translation Security enhanced linux 13. Troubleshooting Booting different run levels Network problems Hostname resolution problems Partitions, filesystems & swap Boot loader problems NT07/01