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Linux System Administration

Presentation

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.

Contents

  • 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.

~~DISCUSSION:off~~

Piste : • LCF101 - Système de Fichiers • 103.2 - Utiliser des filtres sur des textes en entrée (3/60) • LCF500 - CentOS 8 Linux (RHEL 8) - Technician • Gestion de l'Archivage et de la Compression • Gestion des Utilisateurs • Topic 212: System Security • 103.8 - Editer des fichiers en utilisant VI (3/60) • 109.4 - Configure client side DNS • LSF117 - Gestion du Réseau • Linux System Administration

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