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Debian Linux : System Administration

Presentation

Objectives : Learn Debian Linux system administration.
Who can benefit: Linux users and technicians / Windows™, Mac and Unix users/administrators.
Prerequisites: Computer literacy.
Learning technique : Clear, theoretical course content divided into lessons and extensive LABS available on-line 24/24 7/7.
Duration : 35 hours.
Instructor : Certified LPI.
Student Progression : Student progression is monitored both in terms of effective course duration and in terms of student comprehension using self-assessment tests.
Resources : Debian 8 Virtual Appliance.

Cursus

  • Managing Users and Groups
    • Groups
    • Users
    • Commands
      • Groups
        • groupadd
        • groupdel
        • groupmod
        • newgrp
        • gpasswd
      • Users
        • useradd
        • userdel
        • usermod
        • passwd
    • Configuration
    • LAB #1 - Managing Groups and Users
    • su et su -
    • sudo
    • Commands : getent, 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 dpkg Command
    • Advanced Package Tool
      • 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 : dpkg, apt-get, apt-cache, mc, wget, configure, make, ldd, ldconfig.
  • Managing File Permissions
    • Preparation
    • Basic Unix File Permissions
      • Changing Permissions with chmod
        • Symbolic Mode
        • Octal Mode
    • The umask command
    • Changing the Owner or the Group with chown and chgrp
    • 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 and parted
    • Journaled Filesystems
      • Presentation
      • Ext3
      • Ext4
      • ReiserFS
      • XFS
      • JFS
      • Btrfs
    • Swap Space
      • Swap Size
      • Swap Partitions
      • The swapon Command
      • The swapoff Command
      • The /etc/fstab file
      • Swap Files
    • Logical Volume Manager (LVM)
      • Physical Volumes (PV)
      • Volume Groups (VG) and Physical Extents (PE)
      • Logical Volumes (LV)
      • Administration
      • Snapshots
      • Deleting Volumes
      • Mirrored Logical Volumes
      • Attributes
      • Striped Logical Volumes
      • Metadata
    • Commands : fdisk, gdisk, parted, swapon, swapoff, mkswap, dumpe2fs, tune2fs, mke2fs, mkfs.ext3, e2fsck, resize2fs, debugfs, e2label, mkfs.ext4, mkfs.xfs, xfs_check, xfs_repair, xfs_admin, xfs_growfs, xfs_info, xfs_metadump, xfs_db, xfs_admin, mkfs.reiserfs, mkreiserfs, reiserfsck, reiserfstune, resize_reiserfs, debugreiserfs, mkfs.jfs, jfs_tune, jfs_fsck, jfs_febugfs, btrfs-balance, btrfs-check, btrfs-device, btrfs-filesystem, btrfs-inspect-internal, btrfs-property, btrfs-qgroup, btrfs-quota, btrfs-qgroup, btrfs-receive, btrfs-replace, btrfs-rescue, btrfs-restore, btrfs-scrub, btrfs-send, btrfs-subvolume, pvcreate, vgcreate, lvcreate, pvdisplay, vgdisplay, lvdisplay, lvextend, lvreduce, resize2fs, lvs, lvremove, vgremove, pvremove, lvconvert, vgs, pvs, lvchange, vgcfgbackup, vgcfgrestore.
  • Process Scheduling
    • cron
    • anacron
    • at
    • Commands : cron, anacron, at.
  • Archiving and Compression
    • Archiving
      • tar
        • Presentation
        • LAB #1 - Using tar
      • cpio
        • Presentation
        • Command Line Switches
        • LAB #2 - Using cpio
      • dd
        • Presentation
        • Command Line Switches
        • LAB #3 - Using dd
      • dump and restore
        • Presentation
    • Compression
      • gzip
        • Presentation
        • LAB #4 - Using gzip
      • bzip2
        • Presentation
        • LAB #5 - Using bzip2
      • xz
        • Presentation
        • LAB #5 - Using xz
      • Other Tools
    • Commands : tar, cpio, dd, dump, restore, gzip, gunzip, bzip2, bunzip2, xz, compress, uncompress, rar, unrar, zip, unzip.
  • Process Management
    • Process Types
    • Process priorities
    • Synchronous and Asynchronous
    • Process Commands
      • The ps Command
      • The pstree Command
      • The top Command
      • The fg and bg Commands
      • The wait Command
      • The nice Command
      • The renice Command
      • The nohup Command
      • 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
        • audispd
      • Viewing Audit Events
        • The aureport Command
        • The ausearch Command
    • 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
    • /usr/bin/logrotate
    • Journald
      • Viewing logs
      • Viewing logs of a specific application
      • Viewing the logs of the last boot process
      • Viewing logs of a specific priority
      • Viewing logs over a date period
      • Viewing logs in real time
      • Viewing logs using keywords
    • Commands : dmesg, auditd, auditctl, audoispd, aureport, ausearch, rsyslog, logger, logrotate, journalctl.
  • 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 2
      • The /boot/grub/device.map file
      • The /etc/default/grub file
      • Files in the /etc/grub.d directory
        • /etc/grub.d/10_Linux
        • /etc/grub.d/30_os-prober
        • /etc/grub.d/40_custom
        • /etc/grub.d/41_custom
        • Password protection
    • Initramfs
      • The mkinitramfs Command
    • Kernel Booting Process
    • The Systemd startup process
      • The systemctl command
      • Configuration files
      • The systemd-analyze command
      • Managing systemd services
    • System Shutdown
      • The shutdown Command
      • The reboot command
      • The halt Command
      • The poweroff Command
    • Commands : grub_install, runlevel, init, telinit, chkconfig, update-rc.d, mkinitramfs, systemctl, systemd-analyze, shutdown, halt, reboot, poweroff.
  • Managing Integrated Peripherals
    • Special Files
    • Commands
      • The lspci Command
      • The lsusb Command
      • The dmidecode Command
    • The /proc Directory
      • Sub-directories
        • ide/scsi
        • acpi
        • bus
        • net
        • sys
        • The sysctl Command
      • 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
    • The /sys Filesystem
    • Planning resources - the collectd command
    • Limiting Resources
      • ulimit
      • Control groups
    • Commands: lspci, lsusb, dmidecode, free, uptime, w, iostat, vmstat, mpstat, sar, udevadm, collectd, sysctl.
  • Managing a the 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
    • Configuring TCP/IP on Debian 6
      • DHCP
        • /etc/network/interfaces
      • Fixed IP Address
        • /etc/network/interfaces
      • The hostname command
      • The ifconfig command
      • Manually bringing up and down a network interface
      • The /etc/networks file
      • IP address resolution
        • /etc/resolv.conf
        • /etc/nsswitch.conf
        • /etc/hosts
    • Configuring TCP/IP on Debian 8
      • The nmcli command
      • Connections and Profiles
      • Adding a second IP address to an existing profile
      • The hostname command
      • The ip command
      • Manually bringing up and down a network interface
    • Network Services
      • xinetd
      • TCP Wrapper
    • Network Diagostic Commands
      • ping
      • ping6
      • netstat-i
      • traceroute
      • traceroute 6
      • tracepath6
    • Static Routing Tables on Debian 6
      • The route Command
      • The netstat Command
      • Turning routing ON/OFF
    • Static Routing Tables on Debian 8
      • The ip Command
      • Turning routing ON/OFF
    • Remote Administration
      • Telnet
      • ssh
      • wget
      • ftp
      • scp
    • Administrating an NFS server
      • Presentation
      • NFSv3 services and processes
      • Basic commands
      • Server installation on Debian 6
      • Client installation on Debian 6
      • Server installation on Debian 8
      • Client installation on Debian 8
      • The rpcinfo command
      • The nfsstat command
    • Packet Sniffers
      • TCPdump
      • Wireshark
    • Port Scanners
      • nmap
      • netcat
    • The Netfilter Firewall
      • Introduction
      • Configuration using scripts on Debian 6
      • Configuration using firewalld on Debian 8
    • Cryptologie
      • GnuPG
      • Public Key Infrastructures
        • X509 Certificates
      • SSH and SCP
      • SSH Tunneling
    • Commands : netstat, arp, nslookup, dig, ifconfig, ifup, ifdown, ifstatus, NetworkManager, hostname, uname, nmcli, ip, network-manager, ping, ping6, Traceroute, Traceroute6, Tracepath6, tcpd, xinetd, route, ntpd, telnet, wget, ftp, tcpdump, wireshark, nmap, netcat, iptables, gpg, firewall-cmd, ssh, scp.

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