VSHN Apprentice Linux Test for C2

Preparations (done by Instructor)

• On acloud.guru Playground, create Server:
  • Distribution: Ubuntu 20.04 Focal Fossa LTS
  • Zone: Europe
  • Size: Medium
• Login on Server and do initial password change
• Add an additional Harddisk Add /dev/nvme1n1
• Hand Server IP, user and password to the apprentice

Tasks (done by Apprentice)

Connect to the Server

• Connect to the server with the IP XXXXX - use the User cloud_user and the Password XXXXX.
• Enable SSH to Connect with your Public Key and without a Password.

Package Installation

• Install the tree utility
• Install the apache2 package

Aliases

• For the user cloud_user, create an alias named data-tree for the command tree /data. This alias must be persistent.

Storage Management

There is a Hard Disk available: /dev/nvme1n1

• Create an LVM Volume Group (VG) named vg-data, containing this Hard Disk
• Create a LVM Logical Volume (LV) named lv-data in the VG vg-data. It should be 500M in size.
• Create an XFS Filesystem on the LV lv-data in the VG vg-data
• Mount the LV lv-data from the VG vg-data persistently at /data

File and Directory creation

• Create the directory /data
• Move the directory /var/www and its contents to /data/
• Create a symlink named /var/www pointing to /data/www

Archives

• Download the archive https://github.com/a-Tell/linux-test/raw/main/vshn-page.tar.gz - Extract the contents of the archive to /data/www/html/, so in the end it should look like this:

  /data
  └── www
      └── html
          ├── img
          │   └── vshn-logo.svg
          ├── index.html
  

Cronjobs

• Create a cronjob in /etc/crontab that executes the following command as root every minute:

  date >> /data/www/html/log.txt
  

  (you may use crontab.guru as a help)

Modifying files with sed

• Using the sed-command, replace all VSHN with VSHN AG in the file /data/www/html/index.html. Write the command to /data/www/html/sed-command.txt.

Filesystem permissions

• Make sure the Owner of /data/www and all its contents is www-data