Automating Password-Less Linux Infrastructure with Puppet

Managing passwords across Linux servers is a major security risk and an operational headache. Transitioning to a key-based, password-less model is the industry standard for modern, secure systems administration. This text-only course provides a clear pathway to automating your infrastructure security using Puppet. You will learn how to distribute SSH keys, configure system policies, and eliminate password dependencies across your network. What you will learn: Understand the fundamentals of SSH key-based authentication; Write modern, declarative Puppet manifests to automate user and key management; Deploy and manage public SSH keys securely across Linux nodes; Enforce secure SSH configurations and safely disable password-based logins; Apply infrastructure-as-code best practices to maintain a clean configuration. Starting with essential security terminology and basic Puppet architecture, you will read through clear explanations and analyze practical code snippets designed to build your confidence. This course is designed for beginner systems administrators and IT professionals looking to add configuration management to their toolkit. No prior Puppet experience is required, though basic familiarity with the Linux command line is helpful. Begin building a more secure, automated infrastructure today.