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Method

How To Secure A Linux Server

An evolving guide to locking down a Linux server, with the reasoning explained.

  • Rating

    4.5 / 5

  • Pricing

    Free

  • Difficulty

    Intermediate

  • Works on

    Linux, Web, Offline

Built with love by Shushant Lakhyani. Building bestproductivityresources.com

What is How To Secure A Linux Server?

How To Secure A Linux Server is a free, continuously updated guide that walks you through hardening a Linux server step by step. It covers picking a distribution, securing SSH with keys and 2FA, limiting sudo and su, sandboxing applications, firewalling and more, always explaining why each step matters. Ansible playbooks are included so you can automate the whole process.

Third-party open-source projects. We are not affiliated with their authors; repositories are provided as-is by their maintainers. Review each project's license, code and security before installing. See our Disclaimer.

Pros: what How To Secure A Linux Server does well

  • Explains the why behind every hardening step
  • Ansible playbooks automate the full setup
  • Free and actively maintained

Cons: where it falls short

  • Linux-specific, not for macOS or Windows servers
  • Assumes comfort with the terminal

How To Secure A Linux Server alternatives

Not sold on How To Secure A Linux Server? These do a similar job, and each card says what it has in common.

The Art of Command Line

Focus: command line, terminal and bash. Shares linux and guide with How To Secure A Linux Server. A course, not a method. Adds macOS and Windows. Rated 4.9 (How To Secure A Linux Server: 4.5).

CourseFreeWeb, macOS

CoSAI Risk Map

Focus: ai safety, risk management and framework. Shares security and open source with How To Secure A Linux Server. A framework, not a method. Rated 4.3 (How To Secure A Linux Server: 4.5).

FrameworkFreeWeb

Emisar

Focus: ai agents, infrastructure and policy. Shares devops and security with How To Secure A Linux Server. An AI tool, not a method. Rated 4.3 (How To Secure A Linux Server: 4.5).

AI ToolFreeCross-Platform, Linux

AI Agents for Beginners

Focus: ai agents, microsoft and course. Shares open source with How To Secure A Linux Server. A course, not a method. Rated 4.8 (How To Secure A Linux Server: 4.5).

CourseFreeWeb

navi

Focus: terminal, cli and cheatsheet. Shares open source with How To Secure A Linux Server. A desktop app, not a method. Adds macOS and Windows. Rated 4.8 (How To Secure A Linux Server: 4.5).

Desktop AppFreemacOS, Windows

Awesome Machine Learning

Focus: machine learning, awesome list and frameworks. Shares open source with How To Secure A Linux Server. A website, not a method. Rated 4.7 (How To Secure A Linux Server: 4.5).

WebsiteFreeWeb

Free alternatives to How To Secure A Linux Server

Want to spend nothing? These free picks cover similar ground.

DevDocs

Focus: documentation, api reference and developer tools. Shares open source with How To Secure A Linux Server. A web app, not a method. Rated 4.7 (How To Secure A Linux Server: 4.5).

Web AppFreeWeb, Offline

GenAI Agents

Focus: genai, ai agents and tutorials. Shares open source with How To Secure A Linux Server. A course, not a method. Rated 4.7 (How To Secure A Linux Server: 4.5).

CourseFreeWeb

JupyterLab

Focus: notebooks, python and data science. Shares open source with How To Secure A Linux Server. A web app, not a method. Adds macOS and Windows. Rated 4.7 (How To Secure A Linux Server: 4.5).

Web AppFreeWeb, macOS

mpv

Focus: video player, media and subtitles. Shares open source with How To Secure A Linux Server. A desktop app, not a method. Adds macOS and Windows. Rated 4.7 (How To Secure A Linux Server: 4.5).

Desktop AppFreemacOS, Windows

Grok Bot Masterclass

Focus: grok, ai and prompting. Shares guide with How To Secure A Linux Server. A blog, not a method. Rated 4.6 (How To Secure A Linux Server: 4.5).

BlogFreeWeb
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