Advanced Linux System Administration

Revision: TE1405_20060318

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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 a basic Linux system administration course or have equivalent experience.

Course Outline:

• Chapter 1: What You Should Already Know
• Chapter 2: Devices & Filesystems
  1. Maintaining the Integrity of Filesystems
  2. Monitoring Free Disk Space and Inodes
  3. The df Command
  4. The df Command
  5. The du Command
  6. The fsck Command
  7. Controlling Filesystem Mounting and Unmounting
  8. The mount Command and /etc/fstab
  9. Unmounting Filesystems
  10. Setting and Viewing Disk Quotas
  11. Using Quotas
  12. Controlling Access to Files
  13. Establishing Permissions for Files and Directories
  14. umask
  15. Special Permissions
  16. chmod
  17. Managing File Ownership
  18. Creating Hard and Symbolic Links
  19. Soft Links
  20. Preserving Links and Finding Links
  21. The Linux Filesystem Structure
  22. Specific Filesystems
  23. Helpful Commands Used to Locate Files
  24. 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. Configuring the Linux Kernel
  10. Installing a Custom Kernel
  11. Configuring your Boot Manager
  12. Installing a Kernel RPM
• Chapter 6: Linux Networking
  1. Network Models
  2. The TCP/IP Model
  3. TCP/IP Protocols
  4. Packets
  5. Internet Addresses
  6. Subnets
  7. CIDR
  8. Ports
  9. Domain Name System
  10. dig
  11. host
  12. whois
  13. ftp
  14. vsFTP
  15. telnet
  16. ping
  17. ifconfig
  18. route
  19. netstat
  20. tcpdump
  21. traceroute
  22. Miscellaneous Commands
• Chapter 7: Configuring Network Services
  1. Networking Services
  2. Enabling Services
  3. xinetd
  4. sendmail
  5. Configuring sendmail
  6. Configuring Apache
  7. The Network File System (NFS)
  8. Samba
  9. Accessing a Windows Share using Samba
  10. Using SMBFS
  11. DNS
  12. Secure Shell
  13. PPP
  14. DHCP
  15. Configuring a DHCP Server
  16. The dhcpd.conf File
  17. DHCP Clients
• Chapter 8: Network Security
  1. TCP Wrappers
  2. Finding Executable SUID Files
  3. Verifying Packages
  4. Password Management
  5. The Secure Shell
  6. Host-Level Security
  7. User-Level Security
  8. Security Announcements
  9. ipchains
  10. iptables
  11. The proc Filesystem
  12. tcpdump
  13. nmap
• Chapter 9: Firewalls
• Chapter 10: Network Installations