Linux System Administration

Objectives: Learn Basic System Administration on Linux.
Delivery mechanism: Classroom Training
Who can benefit: Windows™, Mac and Unix users/administrators.
Prerequisites: Computer literacy.
Learning technique: Clear, theoretical course content divided into lessons and extensive LABS both available on-line 24/24 7/7 and downloadable in PDF format.
Student Progression: Student progression is monitored both in terms of effective course duration and in terms of student comprehension using self-assessment tests.
Operating Systems covered by this course: CentOS/Redhat, Debian, openSUSE.
Duration: 35 hours over 5 days.

• Managing Users and Groups
  • Groups
  • Users
  • Commands
    • Groups
      • groupadd
        • Command Line Switches
      • groupdel
        • Command Line Switches
      • groupmod
        • Command Line Switches
      • newgrp
        • Command Line Switches
      • gpasswd
        • Command Line Switches
    • Users
      • useradd
        • Command Line Switches
      • userdel
        • Command Line Switches
      • usermod
        • Command Line Switches
      • passwd
        • Command Line Switches
  • Configuration
  • LAB #1 - Managing Groups and Users
  • su et su -
  • sudo
  • Commands : grpck, grpconv, grpunconv, pwck, pwconv, pwunconv, groupadd, groupdel, groupmod, newgrp, gpasswd, useradd, userdel, usermod, passwd, id, groups, su, sudo.

• Package Management
  • Compiling Software the Old Way
    • ./configure
    • make
    • make check
    • make install
  • The rpm Command with Red Hat and OpenSUSE
  • Yellow Dog Updater Modified and Red Hat
    • Configuration
    • Repositories
    • Usage
    • LAB #1 - Working with Yum
  • Zypper and OpenSUSE
    • Configuration
    • Repositories
    • Usage
    • LAB #2 - Working with Zypper
  • The dpkg Command
  • Advanced Package Tool and Debian
    • Configuration
    • Repositories
    • Usage
    • LAB #1 - Working with Apt
  • Shared Libraries
    • Presentation
      • Introduction
      • Shared Object Locations
      • ld-linux.so.2
      • The ldd Command
      • The /etc/ld.so.conf File
      • The ldconfig Command
  • Commands : rpm, yum, dpkg, apt-get, apt-cache, zypper, mc, wget, configure, make, ldd, ldconfig.

• Managing File Permissions
  • Preparation
  • Basic Unix File Permissions
    • Changing Permissions with chmod
      • Symbolic Mode
      • Octal Mode
      • Command Line Switches
  • The umask command
    • Commande Line Switches
  • Changing the Owner or the Group with chown and chgrp
    • Commande Line Switches
  • Advanced Unix Permissions
    • SUID/SGID bit
    • Inheritance Flag
    • Sticky bit
  • ACLs
    • Commande Line Switches
  • Ext2/Ext3/Ext4 Attributes
  • Commands : chmod, umask, chown, chgrp, setfacl, getfacl, chattr, lsattr.

• Managing Disks and Swap Space
  • Block Devices
  • Partitions
    • Master Boot Record
    • Apple Partition Map
    • GUID Partition Table
  • Partitioning
    • LAB #1 - Using fdisk
  • Journaled Filesystems
    • Presentation
    • Ext3
    • Ext4
    • ReiserFS
    • XFS
    • JFS
  • Swap Space
    • Swap Size
    • Swap Partitions
    • The swapon Command
      • Command Line Switches
    • The swapoff Command
      • Command Line Switches
  • The /etc/fstab file
  • Swap Files
  • Commands : fdisk, mke2fs, tune2fs, dumpe2fs, mkfs.xfs, xfs_info, xfs_admin, mkfs.reiserfs, debugreiserfs, reiserfstune, mkfs.jfs, jfs_tune, mkswap, swapon, swapoff.

• Process Scheduling
  • cron
  • anacron
  • at
  • Commands : cron, anacron, at.

• Archiving and Compression
  • Archiving
    • tar
      • Presentation
      • Command Line Switches
      • LAB #1 - Exercises
    • cpio
      • Presentation
      • Command Line Switches
      • LAB #2 - Exercises
    • dd
      • Presentation
      • Command Line Switches
      • LAB #3 - Exercises
    • dump and restore
      • Presentation
  • Compression
    • gzip
      • Presentation
      • Command Line Switches
      • LAB #4 - Exercises
    • bzip2
      • Presentation
      • Command Line Switches
      • LAB #5 - Exercises
    • Other Tools
  • Commands : tar, cpio, dd, dump, restore, gzip, gunzip, bzip2, bunzip2, xz, compress, uncompress, rar, unrar, zip, unzip.

• Process Management
  • Process Types
  • Process Commands
    • The ps Command
      • Command Line Switches
    • The pstree Command
      • Command Line Switches
    • The top Command
    • The fg and bg Commands
      • Command Line Switches
    • The wait Command
    • The nice Command
      • Command Line Switches
    • The renice Command
      • Command Line Switches
    • The nohup Command
      • Command Line Switches
    • The kill Command
  • Commands : ps, pstree, top, fg, bg, wait, nice, renice, nohup, kill.

• Managing Logs
  • The /var/log/messages file
  • The /bin/dmesg Command
  • The /var/log/audit/audit.log file
    • Managing Audit Events
      • auditd
      • auditctl
        • Command Line Switches
      • audispd
    • Viewing Audit Events
      • The aureport Command
        • Command Line Switches
      • The ausearch Command
        • Command Line Switches
  • Applications
  • rsyslog
    • Priorities
    • Facilities
    • /etc/rsyslog.conf
      • Modules
      • Global Directives
      • Rules
        • Facility.Priority
        • Facility!Priority
        • Facility=Priority
        • Using the * Wildcard
        • n Facilities with Identical Priorities
        • n Selectors with Identical Actions
  • /usr/bin/logger
    • Command Line Switches
  • Commands : dmesg, auditd, auditctl, audoispd, aureport, ausearch, rsyslog, logger, logrotate.

• Printer Management
  • Introduction
    • Protocols
    • Daemon
  • Configuration
    • /etc/cups/cupsd.conf
    • Filters
    • Backends
    • Logs
    • Printers
  • Administration
    • The lpstat Command
    • The lpadmin Command
    • The accept and cupsenable Commands
    • Setting Up the Default Printer
    • Using a .ppd File to Add a Printer
    • Classes
    • The /etc/cups/printers.conf File
    • The /etc/cups/classes.conf File
    • The cancel Command
    • The lpmove Command
    • Destroying a Class
  • Web Interface
  • Graphical Interface
  • Commands : lpadmin, accept, reject, cupsenable, cupsdisable, lpstat, cancel, lpmove, lpinfo, lppasswd, lp.

• System Startup and Shutdown
  • System Startup
    • Boot Loader
      • BIOS Systems
      • EFI Systems
  • GRUB
    • GRUB LEGACY on Red Hat/CentOS
    • GRUB LEGACY on OpenSUSE
    • GRUB 2 on Debian Squeeze
      • The /boot/grub/device.map file
      • The /etc/default/grub file
      • Files in the /etc/grub.d directory
  • Initramfs
    • Initramfs on Redhat / CentOS
      • The init Script
      • The dracut Command
    • Initramfs on Debian Squeeze
      • The init Script
      • The mkinitramfs Command
    • Initramfs on openSUSE
      • The init Script
      • The mkinitrd Command
  • Kernel Booting Process
  • The Init Process
  • RUNLEVELS
  • Unix System V Startup Scripts
    • Debian Squeeze
      • Inittab
      • The /etc/init.d directory
      • Le script rc.S
      • The /etc/rcX.d Directories
      • The update-rc.d Command
      • The chkconfig Command
    • openSUSE
  • Upstart Startup Scripts
    • Red Hat/CentOS 6
      • System Initialisation
      • Runlevels
      • [CTL]-[ALT]-[DEL]
      • mingetty
      • rc.sysinit
      • The /etc/rc.d/init.d Directory
      • The /etc/rc.d/rcX.d Directories
      • La commande chkconfig
  • System Shutdown
    • The shutdown Command
    • The reboot command
    • The halt Command
    • The poweroff Command
  • Commands : grub_install, runlevel, init, telinit, chkconfig, update-rc.d, dracut, mkinitramfs, mkinitrd, shutdown, halt, reboot, poweroff.

• Managing Integrated Peripherals
  • Special Files
  • Commands
    • The lspci Command
      • Command Line Switches
    • The lsusb Command
      • Command Line Switches
    • The dmidecode Command
      • Command Line Switches
  • The /proc Directory
    • Sub-directories
      • ide/scsi
      • acpi
      • bus
      • net
      • sys
      • The sysctl Command
        • Command Line Switches
    • Files
      • /proc/cpuinfo
      • /proc/interrupts
      • /proc/dma
      • /proc/ioports
      • /proc/devices
      • /proc/modules
      • /proc/diskstats
      • /proc/partitions
      • /proc/swaps
      • /proc/loadavg
      • /proc/meminfo
      • /proc/version
    • Interpreting Information in /proc
      • Commands
        • free
        • uptime or w
        • iostat
        • vmstat
        • mpstat
        • sar
      • Production Environements
        • Identifying a System with a CPU Bottleneck
        • Identifying a Memory Problem
        • Identifying I/O Bottlenecks
  • USB Modules
  • udev
    • The udevadm Command
      • Command Line Switches
  • The /sys Filesystem
  • Limiting Resources
  • Commands: lspci, lsusb, dmidecode, free, uptime, w, iostat, vmstat, mpstat, sar, udevadm.

• Managing a TCPv4 Network
  • Communication models
    • OSI
      • NDIS and ODI
    • TCP/IP
      • Messages, Datagrams and Segments
      • Establishing a TCP connection
      • The TCP header
      • The UDP header
      • Fragmentation and Re-encapsulation
      • TCPv4 Classes
      • Subnet Masks
        • Variable Length Subnet Masks - VLSM
      • Ports and sockets
  • Configuring a Network Client under Linux
    • /etc/services
    • Ethernet address resolution with arp
      • Command Line Switches
  • Configuring TCP/IP v4
    • Red Hat
      • DHCP
        • /etc/sysconfig/network
        • /etc/sysconfig/network-scripts/ifcfg-ethX (où X=0,1 …)
      • Fixed IP Address
        • /etc/sysconfig/network
        • /etc/sysconfig/network-scripts/ifcfg-ethX (où X=0,1 …)
    • Debian
      • DHCP
        • /etc/network/interfaces
      • Fixed IP Address
        • /etc/network/interfaces
    • openSUSE
      • DHCP
        • /etc/sysconfig/network/config
        • /etc/sysconfig/network/dhcp
        • /etc/sysconfig/network/ifcfg-ethX (où X=0,1 …)
      • Fixed IP Address
        • /etc/sysconfig/network/ifcfg-ethX (où X=0,1 …)
  • The /etc/networks file
  • IP address resolution
    • /etc/resolv.conf
    • /etc/nsswitch.conf
    • /etc/hosts
  • Network Services
    • xinetd
    • TCP Wrapper
  • Basic Networking Commands
    • hostname
      • Command Line Switches
    • ifconfig
      • Command Line Switches
    • ping
      • Command Line Switches
    • netstat -i
      • Command Line Switches
  • Static Routing Tables
    • The route Command
      • Command Line Switches
    • The netstat Command
      • Command Line Switches
    • The traceroute Command
      • Command Line Switches
  • Turning routing ON/OFF
  • Manually bringing up and down a network interface
  • Remote Administration
    • Telnet
      • Command Line Switches
    • ssh
      • Command Line Switches
    • wget
      • Command Line Switches
    • ftp
      • Command Line Switches
    • scp
      • Command Line Switches
  • Commands: netstat, arp, nslookup, dig, ifconfig, ifup, ifdown, ifstatus, NetworkManager, hostname, uname, ping, tcpd, xinetd, route, traceroute, telnet, ssh, wget, ftp, scp.

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