Understand technologies in context.

Shell Scripting · Workshop levels · English

Shell Scripting Workshop: Advanced Security (EN)

This level covers Threat Modeling, Injection-Schutz, Secrets, Rechte, sichere Löschung und Incident Response. You work with local scripts, test data and evidence files. The goal is not only knowing commands, but explaining behavior, erro…

Open document ↗ Shell Scripting · Workshop levels · English

Shell Scripting Workshop: Fundamentals (EN)

This level covers Syntax, Ausführung, Quoting, Exit Codes, Dateien und erste sichere Skripte. You work with local scripts, test data and evidence files. The goal is not only knowing commands, but explaining behavior, error paths and secu…

Open document ↗ Shell Scripting · Workshop levels · English

Shell Scripting Workshop: Intermediate (EN)

This level covers CLI-Design, Funktionen, getopts, Textverarbeitung, Fehlerbehandlung und Cleanup. You work with local scripts, test data and evidence files. The goal is not only knowing commands, but explaining behavior, error paths and…

Open document ↗ Shell Scripting · Workshop levels · English

Shell Scripting Workshop: Professional (EN)

This level covers Skriptarchitektur, Tests, CI/CD, Packaging, Observability und teamfähige Standards. You work with local scripts, test data and evidence files. The goal is not only knowing commands, but explaining behavior, error paths…

Open document ↗ SSH · Workshop levels · English

SSH Workshop: Advanced Security (EN)

This level covers Hardening, Algorithmuspflege, FIDO2, KRL, Forensik, Logging und Incident Response. You work with local test keys, sample configurations and evidence files. The goal is not only executing SSH access, but explaining trust…

Open document ↗ SSH · Workshop levels · English

SSH Workshop: Fundamentals (EN)

This level covers Protokollmodell, erster Login, Host Keys, Public Keys, Dateirechte und sichere Grundbefehle. You work with local test keys, sample configurations and evidence files. The goal is not only executing SSH access, but explai…

Open document ↗ SSH · Workshop levels · English

SSH Workshop: Intermediate (EN)

This level covers Client- und Serverkonfiguration, Agent, Debugging, Forwarding, SFTP und Auth-Fehler. You work with local test keys, sample configurations and evidence files. The goal is not only executing SSH access, but explaining tru…

Open document ↗ SSH · Workshop levels · English

SSH Workshop: Professional (EN)

This level covers Bastion Hosts, ProxyJump, Multiplexing, SSH-Zertifikate, Git/CI und Betriebsmodelle. You work with local test keys, sample configurations and evidence files. The goal is not only executing SSH access, but explaining tru…

Open document ↗ Terraform · Workshop levels · English

Terraform Workshop: Advanced Security (EN)

This level covers State Security, Least Privilege, Supply Chain, Policy as Code, Destroy-Schutz und Incident Response. You work with local HCL artifacts, sample modules and evidence files. The goal is not only knowing Terraform commands,…

Open document ↗ Terraform · Workshop levels · English

Terraform Workshop: Fundamentals (EN)

This level covers IaC, HCL, Provider, Resources, Variablen, Outputs, lokaler State und sicherer CLI-Workflow. You work with local HCL artifacts, sample modules and evidence files. The goal is not only knowing Terraform commands, but expl…

Open document ↗ Terraform · Workshop levels · English

Terraform Workshop: Intermediate (EN)

This level covers Module, Backends, Remote State, Locking, foreach, lifecycle, Import und Refactoring. You work with local HCL artifacts, sample modules and evidence files. The goal is not only knowing Terraform commands, but explaining…

Open document ↗ Terraform · Workshop levels · English

Terraform Workshop: Professional (EN)

This level covers Multi-Environment-Design, Modulversionierung, CI/CD, Drift, HCP Terraform, TACOS und Governance. You work with local HCL artifacts, sample modules and evidence files. The goal is not only knowing Terraform commands, but…

Open document ↗ TLS · Workshop levels · English

TLS Workshop: Advanced Security (EN)

This level covers Hardening, Revocation, CT, HSTS, Legacy-Abbau, TLS Inspection, Key Compromise und Incident Response. You work with local OpenSSL artifacts, sample configurations and evidence files. The goal is explaining TLS behavior,…

Open document ↗ TLS · Workshop levels · English

TLS Workshop: Fundamentals (EN)

This level covers TLS-Grundlagen, SSL-Abgrenzung, Zertifikate, Keys, CAs, SANs, Trust und erste OpenSSL-Analyse. You work with local OpenSSL artifacts, sample configurations and evidence files. The goal is explaining TLS behavior, certif…

Open document ↗ TLS · Workshop levels · English

TLS Workshop: Intermediate (EN)

This level covers Handshake, TLS 1.2/1.3, Cipher Suites, Chain-Building, CSR, Webserver und Debugging. You work with local OpenSSL artifacts, sample configurations and evidence files. The goal is explaining TLS behavior, certificate trus…

Open document ↗ TLS · Workshop levels · English

TLS Workshop: Professional (EN)

This level covers ACME, Automatisierung, Kubernetes Ingress, cert-manager, mTLS, Monitoring und Enterprise PKI. You work with local OpenSSL artifacts, sample configurations and evidence files. The goal is explaining TLS behavior, certifi…

Open document ↗ Ubuntu · Workshop levels · English

Ubuntu Workshop: Advanced Security (EN)

This level covers Threat Modeling, Ubuntu Pro, USG, CIS, SSH/sudo/PAM, AppArmor, auditd, AIDE und Incident Response. You work with local sample configuration, shell scripts and evidence files. The goal is not only executing Ubuntu operat…

Open document ↗ Ubuntu · Workshop levels · English

Ubuntu Workshop: Fundamentals (EN)

This level covers Ubuntu-Grundlagen, Shell, Dateisystem, Benutzer, Rechte, Pakete, Prozesse, Dienste und Logs. You work with local sample configuration, shell scripts and evidence files. The goal is not only executing Ubuntu operations,…

Open document ↗ Ubuntu · Workshop levels · English

Ubuntu Workshop: Intermediate (EN)

This level covers systemd, APT, Snap, ACLs, Storage, Netplan, UFW, SSH, Timer und Troubleshooting. You work with local sample configuration, shell scripts and evidence files. The goal is not only executing Ubuntu operations, but explaini…

Open document ↗ Ubuntu · Workshop levels · English

Ubuntu Workshop: Professional (EN)

This level covers Server-Baseline, cloud-init, Automatisierung, Patch Management, Monitoring, Backup und Performance. You work with local sample configuration, shell scripts and evidence files. The goal is not only executing Ubuntu opera…

Open document ↗ Vagrant · Workshop levels · English

Vagrant Workshop: Advanced Security (EN)

This level covers Trust-Modell, Box-Provenienz, SSH, Secrets, Plugins, Netzwerkexposition und Incident Response. You work with local Vagrantfiles, provisioners, policy files and evidence without starting VMs uncontrollably.

Open document ↗ Vagrant · Workshop levels · English

Vagrant Workshop: Fundamentals (EN)

This level covers Vagrant CLI, Vagrantfile, Boxen, Single-VM-Workflow und sichere Lab-Bedienung. You work with local Vagrantfiles, provisioners, policy files and evidence without starting VMs uncontrollably.

Open document ↗ Vagrant · Workshop levels · English

Vagrant Workshop: Intermediate (EN)

This level covers Provider, Netzwerke, synced folders, Provisioner und Multi-Machine-Topologien. You work with local Vagrantfiles, provisioners, policy files and evidence without starting VMs uncontrollably.

Open document ↗ Vagrant · Workshop levels · English

Vagrant Workshop: Professional (EN)

This level covers Team-Standards, Box-Lifecycle, CI-Validierung, Registry-Nutzung und reproduzierbare Umgebungen. You work with local Vagrantfiles, provisioners, policy files and evidence without starting VMs uncontrollably.

Open document ↗ Ansible · Exercises · English

Ansible Workshop: Advanced + Security – Exercises with Solutions

A complete treatment of Goal contains both a technical artifact and a short domain explanation. The artifact can be an inventory, a playbook, a role, a template, a Vault file with dummy values, a CI configuration, or an evidence file. Th…

Open document ↗ Ansible · Exercises · English

Ansible Workshop: Fundamentals – Exercises with Solutions

A complete treatment of Goal contains both a technical artifact and a short domain explanation. The artifact can be an inventory, a playbook, a role, a template, a Vault file with dummy values, a CI configuration, or an evidence file. Th…

Open document ↗ Ansible · Exercises · English

Ansible Workshop: Intermediate – Exercises with Solutions

A complete treatment of Goal contains both a technical artifact and a short domain explanation. The artifact can be an inventory, a playbook, a role, a template, a Vault file with dummy values, a CI configuration, or an evidence file. Th…

Open document ↗ Ansible · Exercises · English

Ansible Workshop: Professional – Exercises with Solutions

A complete treatment of Goal contains both a technical artifact and a short domain explanation. The artifact can be an inventory, a playbook, a role, a template, a Vault file with dummy values, a CI configuration, or an evidence file. Th…

Open document ↗ Certificate Authority · Exercises · English

Certificate Authority Workshop: Advanced + Security – Exercises with Solutions

Goal is treated as a reviewable PKI building block. The important point is not merely that a command creates a certificate, but that purpose, extensions, trust chain, validity, key usage, and cleanup are understandable.

Open document ↗ Certificate Authority · Exercises · English

Certificate Authority Workshop: Fundamentals – Exercises with Solutions

Goal is treated as a reviewable PKI building block. The important point is not merely that a command creates a certificate, but that purpose, extensions, trust chain, validity, key usage, and cleanup are understandable.

Open document ↗ Certificate Authority · Exercises · English

Certificate Authority Workshop: Intermediate – Exercises with Solutions

Goal is treated as a reviewable PKI building block. The important point is not merely that a command creates a certificate, but that purpose, extensions, trust chain, validity, key usage, and cleanup are understandable.

Open document ↗ Certificate Authority · Exercises · English

Certificate Authority Workshop: Professional – Exercises with Solutions

Goal is treated as a reviewable PKI building block. The important point is not merely that a command creates a certificate, but that purpose, extensions, trust chain, validity, key usage, and cleanup are understandable.

Open document ↗ containerd · Exercises · English

Exercises: Advanced Security containerd

Threat modeling, sandbox runtimes, image trust, seccomp, AppArmor, SBOM and incident response.

Open document ↗ containerd · Exercises · English

Exercises: Fundamentals containerd

Fundamentals of containerd, OCI, images, content store, snapshotters, containers and tasks.

Open document ↗ containerd · Exercises · English

Exercises: Intermediate containerd

CRI, Kubernetes node, registry configuration, CNI, cgroups, crictl and nerdctl.

Open document ↗ containerd · Exercises · English

Exercises: Professional containerd

Operations, upgrades, garbage collection, observability, rootless and runtime strategies.

Open document ↗