OPS245

Brainstorming:

• OS Install
  • No Nested virtualization, all VMs in VirtualBox
  • Mint for workstation
  • Debian dvd1 for server1
  • Debian minimal CD for server2
  • Debian minimal CD in advanced mode for server 3
• Installing/removing/managing software
  • Package management
    • repo and .deb
    • apt and dpkg
    • dependencies
    • extra repositories
  • applications vs services, systemctl
  • tar
    • decompress practice with sample tar files, one without a parent directory
  • wget
  • scp
• User management
  • sudo, su, sudoers
  • set root password on workstation only
  • Add 3 users on every machine
    • add one of them to sudoers
    • the others can su
  • File ownership practice
  • scp
• Storage management
  • mount, fstab
  • which files/directories on which storage device
  • wreck root, reinstall. format root, use existing home
  • LVM
    • Create new LVs
    • Add PVs
    • Migrate VG to new PVs
    • Practice running out of space
• Networking
  • Default virtual network with DHCP
  • ip command
  • netstat or ss
  • New virtual network without DHCP
  • static network config for workstation and servers
• Security
  • Access /root via external boot
  • brute-force ssh
  • password policies
  • ssh keys
  • sshd_config
• Python