This repository contains a series of projects and exercises designed to provide hands-on experience with various aspects of system engineering and DevOps. The projects cover a wide range of topics, including shell scripting, process management, networking, web stack debugging, and more. Each directory within this repository focuses on a specific topic and contains relevant scripts, tasks, and resources to help you understand and practice the concepts.
- 0x00-shell_basics
- 0x01-shell_permissions
- 0x02-shell_redirections
- 0x03-shell_variables_expansions
- 0x04-loops_conditions_and_parsing
- 0x05-processes_and_signals
- 0x06-regular_expressions
- 0x07-networking_basics
- 0x08-networking_basics_2
- 0x0A-configuration_management
- 0x0B-ssh
- 0x0C-web_server
- 0x0D-web_stack_debugging_0
- 0x0E-web_stack_debugging_1
- 0x0F-load_balancer
- 0x10-https_ssl
- 0x12-web_stack_debugging_2
- 0x13-firewall
- 0x14-mysql
- 0x15-api
- 0x16-api_advanced
- 0x17-web_stack_debugging_3
- 0x18-webstack_monitoring
- 0x19-postmortem
- 0x1A-application_server
- 0x1B-web_stack_debugging_4
- attack_is_the_best_defense
- command_line_for_the_win
This directory contains a series of scripts that demonstrate basic shell commands and their usage. These scripts are designed to help users understand and practice fundamental shell operations, including navigation, file manipulation, and system information retrieval.
This directory contains a series of scripts that demonstrate basic shell permissions and their usage. These scripts are designed to help users understand and practice fundamental shell operations related to file and directory permissions, user management, and privilege escalation.
This directory contains a series of scripts that demonstrate shell redirections and filters. These scripts are designed to help users understand and practice fundamental shell operations related to input/output redirection, piping, and text processing using various shell utilities.
This directory contains a series of scripts that demonstrate shell variable usage and expansions. These scripts are designed to help users understand and practice fundamental shell operations related to variable assignment, arithmetic operations, and various types of expansions including parameter expansion, command substitution, and arithmetic expansion.
This directory contains a series of scripts that demonstrate the use of loops, conditions, and parsing in shell scripting. These scripts are designed to help users understand and practice fundamental shell operations related to control flow, conditional statements, and text parsing.
This directory focuses on understanding and managing processes and signals in a Unix-like operating system. Processes are instances of running programs, and signals are a form of inter-process communication used to notify processes of events. This directory provides hands-on experience with various commands and techniques to manage processes and handle signals.
This directory contains a series of scripts that demonstrate the use of regular expressions (regex) in various programming tasks. Regular expressions are powerful tools for pattern matching and text manipulation. These scripts are designed to help users understand and practice fundamental operations related to regex, including matching, searching, and replacing text patterns.
This directory contains a series of scripts and tasks that introduce basic networking concepts and commands. These tasks are designed to help users understand and practice fundamental networking operations, including configuring network interfaces, understanding IP addressing, and using common network utilities.
This directory builds on the concepts introduced in 0x07-networking_basics and covers more advanced networking topics. The tasks in this directory are designed to help users deepen their understanding of networking principles and practices.
This directory focuses on configuration management using tools like Puppet, Chef, or Ansible. Configuration management is essential for automating the deployment and management of infrastructure. This directory provides hands-on experience with writing configuration management scripts and managing infrastructure as code.
This directory contains tasks related to Secure Shell (SSH), a protocol used to securely connect to remote servers. The tasks are designed to help users understand how to set up and use SSH for secure communication and remote management of servers.
This directory focuses on setting up and managing web servers. The tasks are designed to help users understand the basics of web server configuration, including setting up Apache or Nginx, managing virtual hosts, and securing web servers.
This directory focuses on debugging issues in a web stack. Web stack debugging involves identifying and resolving problems that occur within the various layers of a web application, including the server, network, and application layers. This directory provides hands-on experience with common debugging tools and techniques used to diagnose and fix issues in a web stack.
This directory builds on the concepts introduced in 0x0D-web_stack_debugging_0 and covers more advanced web stack debugging techniques. The tasks are designed to help users deepen their understanding of web stack debugging and troubleshooting.
This directory focuses on setting up and managing load balancers. Load balancers are used to distribute incoming network traffic across multiple servers to ensure high availability and reliability. This directory provides hands-on experience with configuring and managing load balancers.
This directory contains tasks related to HTTPS and SSL/TLS, which are protocols used to secure communication over the internet. The tasks are designed to help users understand how to set up and manage HTTPS and SSL/TLS certificates to secure web servers.
This directory continues the exploration of web stack debugging with more advanced tasks and scenarios. The tasks are designed to help users further develop their debugging skills and understand the complexities of web stack troubleshooting.
This directory focuses on setting up and managing firewalls. Firewalls are used to control incoming and outgoing network traffic based on predetermined security rules. This directory provides hands-on experience with configuring and managing firewalls to secure network communications.
This directory contains tasks related to MySQL, a popular relational database management system. The tasks are designed to help users understand how to set up, configure, and manage MySQL databases, including performing common database operations and optimizing database performance.
This directory focuses on working with APIs (Application Programming Interfaces). The tasks are designed to help users understand how to make API requests, handle responses, and work with different types of APIs programmatically.
This directory contains advanced tasks related to working with APIs. These tasks build on the concepts introduced in 0x15-api and are designed to help users deepen their understanding of API interactions and integrations.
This directory focuses on advanced web stack debugging techniques. Web stack debugging involves identifying and resolving problems that occur within the various layers of a web application, including the server, network, and application layers. This directory provides hands-on experience with using strace to diagnose and fix issues in a web stack.
This directory focuses on understanding and implementing web stack monitoring. Monitoring is crucial for maintaining the health, performance, and security of web applications. This directory provides hands-on experience with setting up monitoring tools, collecting metrics, and creating dashboards to visualize the performance of web servers and applications.
This directory contains tasks related to writing postmortems. A postmortem is a document that describes an incident, its impact, the root cause, and the steps taken to resolve it. The tasks are designed to help users understand how to write effective postmortems to document and learn from incidents.
This directory focuses on setting up and managing application servers. Application servers are used to host and run web applications. This directory provides hands-on experience with configuring and managing application servers to deploy and run web applications.
This directory continues the exploration of web stack debugging with more advanced tasks and scenarios. The tasks are designed to help users further develop their debugging skills and understand the complexities of web stack troubleshooting.
This directory focuses on understanding and implementing various network security attack techniques and defenses. The goal is to provide hands-on experience with network sniffing, ARP spoofing, and dictionary attacks, as well as to understand the importance of securing network communications and services.
This directory focuses on mastering the command line interface (CLI) by completing various tasks that require the use of different command line tools and techniques. The goal is to enhance your proficiency in using the command line to perform a wide range of tasks efficiently.
- Ensure you have the necessary permissions to execute the scripts and commands.
- Test the scripts and commands in a safe environment to avoid any unintended changes to your system.
- Refer to the resources provided in each directory for a deeper understanding of each concept and its practical applications.
- Regularly review and update your skills to maintain proficiency in system engineering and DevOps practices.