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Course Overview This course is based on the latest versions of SuSE and Red Hat. However, most of the subjects are applicable to any Linux flavour. This course has been classified as IT Technical Training. Audience This course is aimed at anyone who will be in a position of administrating a Linux based system, or in need of a fuller knowledge of the tools and methods available for administration within Linux. Skills Gained On completion of the course delegates will be able to: - Know Linux history, good/bad points
- Understand the roles of an administrator
- Configure X Windows
- Understand Linux documentation
- Manage users and groups
- Maintain and interpret System Logs
- Fully understand and manage hardware
- Fully understand and manage disk filesystems
- Understand and control processes
- Implement job scheduling using at and cron
- Install, remove, list and verify software
- Upgrade to a new Kernel.
- Be able to backup and restore a Linux system
- Understand and configure the boot loaders LILO and GRUB
- Understand Boot and Shutdown procedures, including starting/stopping subsystems
- Basic Firewall configuration
- Basic Network configuration.
- Perform basic troubleshooting
- Recover from a variety of boot problems
- Share files and printers between Linux and Microsoft machines using SAMBA
- Manage all aspects of printer administration
- Install a Linux system
Prerequisites This course assumes the delegate has already gained a good understanding of basic UNIX/LINUX commands, e.g. from attending our LINIX Essentials course, or our UNIX Essentials Course Outline Linux Overview - Define and identify origins, benefits, drawbacks, and uses of the Linux operating system
- Differences between Linux and UNIX
- Differences between the Linux distributions
Understand the roles of an administrator - The superuser, SU, System Admin Tools, Denying root access
Configure X Windows - Configure, start, disable, troubleshoot X Windows. Virtual Terminals. Gnome and KDE Interfaces.
Understand Linux Documentation - man, HOWTOs, Guides, LDP, the info command
Manage users and groups - useradd, usermod, userdel, groupadd, groupmod, groupdel, /etc/passwd, /etc/shadow, /etc/group.
- Privileged users, the sudo command, customising shells with .bash_profile and .bashrc
Maintain and Interpret System Logs - What and where are my logs, and how/when to trim them.
Fully understand and manage hardware - What hardware do I have? How to add/remove hardware. (eg disks, modems etc). Device Files
- What are they, what do they contain, how to create them, and what are they called?
- The dmesg command. The hwconf file
Fully understand and manage disk filesystems - The Linux/UNIX directory layout. Partitions (primary and logical). Filesystem types, differences between ext2 and ext3. Raw and block useage. Creating a new partition, putting a filesystem on it, mounting it, checking it's mounted, getting it mounted automatically at boot time. The /etc/fstab file. Mounting/ejecting cdroms and floppies. Unmounting. Filesystem maintenance, monitoring disk usage, how full is too full? Expanding/reducing filesystems, fixing broken filesystems.
Understand and control processes - The process tree, ps, kill, pkill, pstree, top, other performance and monitoring tools.
Implement job scheduling using at and cron - at, crontab, /etc/crontab, anacron
Install, remove, list and verify software - rpm with all the options.
Upgrade to a new Kernel. - Where, when, why and how?
- Be able to backup and restore a Linux system
- dump, cpio, tar, gzip, dd
Understand and configure the boot loaders LILO and GRUB - Difference between LILO and GRUB. Installing a new loader. Switching between LILO and GRUB
Understand Boot and Shutdown procedures, including starting/stopping subsystems - init and the /etc/rc.d directories and files. Permanently and/or temporarily starting/stopping subsystems (eg telnet). The shutdown commands. Enabling/disabling Ctrl-Alt-Del. Allowing non-root users to shutdown.
Basic Firewall Configuration - Disabling insecure connections, (eg telnet, ftp), and using the ssh commands.
Basic Network Configuration. - Displaying/changing hostname, IP, netmask and Broadcast Addresses. Using DHCP.
- Configuring a Modem, setting up a Web Server.
Recover from a variety of boot problems - Breaking in with no root password, recovering from both minor and major boot problems. Booting from floppy/CD-ROM.
Share files and printers between Linux and Microsoft machines - Basic SAMBA configuration
Manage all aspects of printer administration - Local, remote and network printers
Install a Linux System
How to make a booking for the LNXA course
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