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• ../ Linux
• Booting 2

  • Boot ProcessOverview of the Linux boot process from BIOS to systemd
  • GrubOverview of grub
• Access Control 2

  • sudoHow sudo works and sudoers configuration
  • Privilege escalationPrivilege escalation via setuid bits and system accounts
• Process Control 3

  • Process ControlProcess lifecycle, forking, zombies and re-parenting
  • CronScheduling tasks with cron and crontab
  • Systemd 5

    • Overviewoverview of systemd
    • Unit Files
    • Systemctl
    • Targets
    • Systemd timersScheduling services with systemd timers
• File system 3

  • File attributesFile permission bits, type flags and special modes
  • File typesOverview of character and block device files
  • ConventionsNaming and layout conventions that explain why the filesystem looks the way it does
• Software Management 2

  • OverviewPackage management across Linux distributions
  • Distributions
• Scripting & Shell 3

  • IntroductionPhilosophy and approach to shell scripting
  • ShellsWhat a shell is, how to approach them
  • OperatorsRedirection, pipes and control operators
• User Management 2

  • User ManagementUser accounts, UIDs and /etc/passwd
  • Adding UsersAdding users manually and with useradd/adduser
• Logging 4

  • Logging
  • Journald
  • Syslog
  • Logrotate
• Cloud 2

  • Cloud
  • Cloud Networking
• Drivers and the Kernel 3

  • The Kernel
  • Linux Kernel Configuration
  • Drivers and Device Files
• Networking 5

  • TCP/IP
  • Network Configuration
  • Firewalls and NAT
  • Sockets
  • Troubleshooting
• DNS 1

  • DNS
• SSO 1

  • SSO
• Email 1

  • Email
• Web Hosting 3

  • Web hosting
  • HTTP Versions
  • Web Software
• Storage 6

  • Adding a disk
  • Storage
  • Partitioning
  • Raid
  • Logical Volume Management
  • Filesystems
• NFS & SMB 2

  • NFS
  • SMB
• Configuration Management 1

  • Configuration Management
• Virtualization 1

  • Virtualization
• Containers 3

  • Containers
  • Docker
  • Container Security
• Security 3

  • Security
  • SSH
  • Cryptography and PKI
• Monitoring 1

  • Monitoring
• Performance 1

  • Performance