Course Length:

5 Days

Course Description:

This course takes Linux System Administrators to the next level of maintaining Linux systems and implementing advanced levels of security and administration.

Who Should Attend:

The course is intended for those people who will be responsible for the operation and management of LINUX systems.

Benefits of Attendance:

Upon completion of this course, students will be able to:

• Create and manage Linux filesystems.
• Manage user and group accounts.
• Add and remove devices.
• Install and compile new Linux kernels.
• Perform administrator level networking tasks.
• Setup and manage access to network services such as ftp, telnet, and NTP.
• Enable or disable services according to runlevel.
• Setup and configure sendmail.
• Setup and configure apache.
• Setup and configure NFS.
• Setup a DHCP server and manage client access.
• Manage network security.
• Learn basic firewall configuration.
• Perform network Linux installations.

Prerequisites:

Participants are expected to have completed the Linux System Administration Course or have equivalent experience.

Course Outline:

• Chapter 1: What You Should Already Know
  1. Booting Linux
  2. LILO
  3. GRUB
  4. Modules.conf
  5. dmesg
  6. /var/log/messages
  7. System Runlevels
  8. /etc/inittab
  9. Overview of Red Hat Printing
  10. Printer Configuration
  11. CUPS
  12. Filesystems
  13. Kinds of Partitions
  14. Device Naming Conventions
  15. The root Filesystem
  16. Partitioning Disks
  17. Creating Filesystems
  18. Introduction
  19. The /etc/passwd File
  20. The /etc/group File
  21. The useradd Program
  22. The /etc/shadow File
  23. Scheduling Automatic Job Execution
  24. Backups
  25. tar
  26. The mt Command
  27. cpio
  28. dd
  29. dump and restore
  30. The dump Command
  31. The restore Command
  32. Naming Services Overview
  33. The NIS+ Environment
  34. The NIS Environment
  35. NIS Servers and Clients
  36. NIS Components
• Chapter 2: Devices, Filesystems, And The Filesystem Hierarchy Standard
  1. Maintaining the Integrity of Filesystems
  2. Monitoring Free Disk Space and Inodes
  3. The df Command
  4. The du Command
  5. The fsck Command
  6. Controlling Filesystem Mounting and Unmounting
  7. The mount Command and /etc/fstab
  8. Unmounting Filesystems
  9. Setting and Viewing Disk Quotas
  10. Using Quotas
  11. Controlling Access to Files
  12. Establishing Permissions for Files and Directories
  13. umask
  14. Special Permissions
  15. chmod
  16. Managing File Ownership
  17. Creating Hard and Symbolic Links
  18. Soft Links
  19. Preserving Links and Finding Links
  20. The Linux Filesystem Structure
  21. Specific Filesystems
  22. Helpful Commands Used to Locate Files
  23. Troubleshooting
• Chapter 3: Administrative Tasks
  1. User Administration Commands
  2. More on useradd
  3. Group Management
  4. Tuning the User Environment
  5. Using System Log Files
  6. Linux Time
  7. NTP
• Chapter 4: Documentation
  1. Paginators
  2. man
  3. Organization of man Pages
  4. Creating Your Own man Pages
  5. Other Documentation
  6. info
  7. Finding Information on the Internet
  8. Communicating with Users
• Chapter 5: Kernel
  1. Kernel Modules
  2. The lsmod Command
  3. The insmod Command
  4. The rmmod Command
  5. The modprobe Command
  6. The modinfo Command
  7. Installing a Custom Kernel
  8. Configuring the Linux Kernel
  9. Installing a Custom Kernel
  10. Configuring your Boot Manager
  11. Installing a Kernel RPM
• Chapter 6: Linux Networking Fundamentals
  1. Introduction
  2. Network Models
  3. The TCP/IP Model
  4. TCP/IP Protocols
  5. Packets
  6. Internet Addresses
  7. Subnets
  8. CIDR
  9. Ports
  10. Domain Name System
  11. dig
  12. host
  13. whois
  14. ftp
  15. vsFTP
  16. telnet
  17. ping
  18. ifconfig
  19. route
  20. netstat
  21. tcpdump
  22. traceroute
  23. Miscellaneous Commands
• Chapter 7: Configuring Networking Services
  1. Networking Services
  2. Enabling Services
  3. xinetd
  4. DHCP
  5. Configuring a DHCP Server
  6. The dhcpd.conf File
  7. DHCP Clients
  8. sendmail
  9. Configuring sendmail
  10. Configuring Apache
  11. The Network File System (NFS)
  12. DNS
  13. Secure Shell
  14. PPP
  15. Samba Configuration
• Chapter 8: Security
  1. TCP Wrappers
  2. Finding Executable SUID Files
  3. Verifying Packages
  4. Host-Level Security
  5. ulimit
  6. Security Announcements
  7. The proc Filesystem
  8. Network Security Applications
  9. tcpdump
  10. nmap
  11. netcat
• Chapter 9: Firewalls
  1. Introduction
  2. iptables
  3. Logging
  4. iptables Logging
  5. The nat Table
  6. nat
  7. The mangle Table
• Chapter 10: Network Installation
  1. Introduction
  2. Server Setup
  3. FTP and HTTP Installation
  4. NFS Installation
  5. The Kickstart File
  6. Editing The Kickstart File
  7. Installation