Craft an Ansible playbook to apply security best practices for Linux server hardening, including SSH, firewall, and user management.
Task: generate a summary of a video. Input: [video title], [video transcript], [length of summary: e.g., 100 words, 200 words] Instruction: summarize the video transcript, focusing on the main topics and key takeaways. The summary should be concise and informative, providing a clear overview of the video's content. Adhere to the specified length constraint.
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This prompt is part of the premium pack "Advanced infrastructure automation blueprints".
Generate an Ansible playbook to automate the installation and basic configuration of an NGINX web server on Linux machines.
Provide a concise overview of digital signature principles, explaining their function in authentication and non-repudiation.