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A Cloud Guru

Welcome to the Scenario-Based LXD/LXC Security course. This is the third course of a four-course learning path related to securing containers. The first course focused on teaching how to prepare and harden our operating system so that it is secured as much as possible. The second course was all about Docker containers and taught how to navigate through different situations within the context of Docker security. This time, we move on to another popular container known as Linux Containers (LXC) where we will get some in-depth insight to how to use them. LXD is a system container manager and an extension of LXC. Today, one is not used without the other. In this course, we go over a series of best security practices. In order to do anything, we need to install LXC and initialize LXD. One useful security feature of the Linux kernel is seccomp, and we will talk about it within the context of LXC. Seccomp is used to allow and deny system calls with blacklists and whitelists. For unprivileged containers, it adds another layer of security and it is a good practice. Another useful thing we can do with LXC/LXD containers and container groups is limit their resource consumption. We can pose constraints on different parts of the system such as CPU usage, RAM usage, the amount of network traffic going in and out, etc. These restriction options are important because if our container starts overconsuming the resources of the system for any reason and we don't have an alert system to warn us, that can result in a very slow system or our container can end up DoSing everything running on the system. One practical example we will go through is the process configuring a container to be a tunnel through which we will redirect traffic. It will be an SSH tunnel with private and public keys, and all traffic will go through it. This shields us as the end user from being exposed and encrypts our traffic when traveling between two points. Another practical example we will go through is the process of configuring and securing a container to run Apache Web Server for an application backend and frontend. We will be creating three separate containers for this: one for the backend, one for the database, and one for the frontend. We will need to configure proper communication between them and ensure we end up using best security practices and strong encryption.

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Good to know

Know what's good
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Teaches skills relevant to industry best practices for container security
Uses a mixture of videos, discussions, and labs to enhance learning
Taught by industry experts recognized for their work in container security
Suitable for intermediate learners with a foundation in Linux containers
May require additional software or tools that students may need to purchase

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Scenario Based LXD/LXC Security with these activities:
Organize and Review Course Materials
Stay organized and deepen your understanding by compiling and reviewing course materials.
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  • Gather all course materials, including notes, assignments, and quizzes.
  • Organize the materials into a logical structure for easy retrieval.
  • Review the materials regularly to reinforce your knowledge.
  • Identify areas where you need further clarification or practice.
Review Operating System Security Fundamentals
Reinforce your knowledge of operating system security by reviewing relevant concepts and techniques.
Browse courses on Operating System Security
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  • Review principles of access control, authentication, and auditing.
  • Familiarize yourself with common security vulnerabilities and mitigation techniques.
  • Consider taking a practice quiz or exam to test your understanding.
Participate in a Study Group or Discussion Forum
Engage with peers by participating in study groups or discussion forums to reinforce your understanding.
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  • Identify or create a study group or discussion forum related to the course.
  • Actively participate in discussions, sharing your insights and asking questions.
  • Collaborate with others to solve problems and explore different perspectives.
  • Seek support and guidance from peers and facilitators.
Three other activities
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Practice Configuring Seccomp Profiles
Strengthen your understanding of Seccomp by configuring profiles and experimenting with different settings.
Browse courses on Seccomp
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  • Set up a test environment with LXC and LXD installed.
  • Create a series of seccomp profiles with varying rules.
  • Test the profiles by running containers with different configurations.
  • Analyze the results and fine-tune your profiles for optimal security.
Configure a Containerized SSH Tunnel
Apply your skills by creating a containerized SSH tunnel for secure communication.
Show steps
  • Set up a containerized SSH server and client.
  • Generate and exchange SSH keys for authentication.
  • Configure port forwarding rules to redirect traffic through the tunnel.
  • Test the tunnel and verify its functionality.
  • Document your steps and share your findings with others.
Deploy a Multi-Container Web Application
Challenge yourself by deploying a multi-container web application using best security practices.
Show steps
  • Design the application architecture and identify the required containers.
  • Create Docker images for each container, incorporating security measures.
  • Configure a container orchestration platform (e.g., Docker Swarm, Kubernetes).
  • Deploy the application and configure load balancing and monitoring.
  • Implement security measures such as TLS encryption and access control.

Career center

Learners who complete Scenario Based LXD/LXC Security will develop knowledge and skills that may be useful to these careers:
IT Security Analyst
IT Security Analysts protect an organization's computer systems and networks from unauthorized access, use, disclosure, disruption, modification, or destruction. They also develop and implement security policies and procedures, and provide security awareness training to employees. This course covers best security practices for LXD/LXC containers. This knowledge is essential for IT Security Analysts who want to protect their organization's systems from security threats.
Cloud Security Engineer
Cloud Security Engineers design, implement, and maintain security systems for cloud computing environments. They also develop and implement security policies and procedures, and provide security awareness training to employees. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Cloud Security Engineers who want to design and implement secure cloud computing environments.
Security Consultant
Security Consultants provide advice and assistance to organizations on security matters. They help organizations to identify security risks, develop security policies and procedures, and implement security measures. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Security Consultants who want to provide effective security advice to their clients.
Information Security Manager
Information Security Managers are responsible for developing and implementing security policies and procedures for their organization. They also oversee the implementation of security measures, and provide security awareness training to employees. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Information Security Managers who want to develop and implement effective security programs.
Security Architect
Security Architects design and implement security systems for organizations. They work with business and IT leaders to identify security risks and develop solutions to mitigate those risks. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Security Architects who want to design and implement secure systems.
Chief Information Security Officer (CISO)
The Chief Information Security Officer (CISO) is responsible for the overall security of an organization's information systems. They develop and implement security policies and procedures, and oversee the implementation of security measures. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for CISOs who want to develop and implement effective security programs.
Security Engineer
Security Engineers design, implement, and maintain security systems. They also develop and implement security policies and procedures, and provide security awareness training to employees. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Security Engineers who want to design and implement secure systems.
Risk Analyst
Risk Analysts identify and assess risks to an organization's information systems and networks. They develop and implement risk management plans to mitigate those risks. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Risk Analysts who want to identify and assess risks to LXD/LXC containers.
Forensic Analyst
Forensic Analysts investigate computer crimes and security breaches. They collect and analyze evidence from computer systems and networks to determine what happened and who was responsible. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Forensic Analysts who want to investigate computer crimes and security breaches involving LXD/LXC containers.
DevOps Engineer
DevOps Engineers work to bridge the gap between development and operations teams. They are responsible for the entire software development lifecycle, from planning and development to deployment and maintenance. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for DevOps Engineers who want to deploy and maintain secure software systems.
Systems Analyst
Systems Analysts design and develop software systems that meet the needs of their organization. They consider the organization's business goals, user needs, and technical constraints to create systems that are efficient, effective, and secure. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Systems Analysts who want to develop secure software systems.
Compliance Officer
Compliance Officers ensure that their organization complies with applicable laws and regulations. They develop and implement compliance programs, and monitor the organization's compliance with those programs. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Compliance Officers who want to ensure that their organization complies with applicable laws and regulations relating to LXD/LXC containers.
Network Security Engineer
Network Security Engineers design, implement, and maintain network security systems. They also monitor network traffic for suspicious activity, and respond to security incidents. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Network Security Engineers who want to design and implement secure network systems.
Incident Responder
Incident Responders respond to security incidents and breaches. They work to contain the damage, investigate the incident, and restore normal operations. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Incident Responders who want to respond to security incidents and breaches involving LXD/LXC containers.
Penetration Tester
Penetration Testers identify security vulnerabilities in computer systems and networks. They use a variety of tools and techniques to test the security of systems and networks, and report their findings to the organization. This course provides a strong foundation in LXD/LXC security. This knowledge is essential for Penetration Testers who want to identify security vulnerabilities in LXD/LXC containers.

Reading list

We've selected ten books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Scenario Based LXD/LXC Security.
Provides a comprehensive overview of Docker, including how to install and configure Docker, and how to use Docker to deploy applications. It valuable resource for anyone who wants to learn more about Docker.
Provides a comprehensive overview of Kubernetes, including how to install and configure Kubernetes, and how to use Kubernetes to manage containerized applications. It valuable resource for anyone who wants to learn more about Kubernetes.
Provides a fictionalized account of how a DevOps transformation can help a struggling organization. It valuable resource for anyone who wants to learn more about DevOps from a practical perspective.
Provides a comprehensive overview of DevOps, including how to implement DevOps practices in your organization. It valuable resource for anyone who wants to learn more about DevOps.
Provides a comprehensive overview of the Linux command line, including how to use basic commands, navigate the file system, and manage processes. It valuable resource for anyone who wants to learn more about the Linux operating system.
Provides a comprehensive overview of Apache web server administration, including how to install and configure Apache, and how to manage Apache web servers. It valuable resource for anyone who wants to learn more about Apache web server administration.
Some concepts are also applicable to LXC.

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