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Configure “No Password SSH Keys Authentication” with PuTTY on Linux Servers

SSH (Secure SHELL) is one of the most used network protocol to connect and login to remote Linux servers, due to its increased security provided by its cryptographic secure channel established for data flow over insecure networks and its Public Key Authentication.

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Master the Cloud with Free OpenStack Training Tools

 If you're looking for free resources and tutorials for mastering OpenStack, this post will provide many good choices.

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Assorted Fun Linux Command Line Hacks

Learn how to create shell rainbows, ask Is the Internet on Fire?, run the Star Wars Traceroute, and create annoying sounds from the console.

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Secure Your Linux Desktop and SSH Login Using Two Factor Google Authenticator

It is a little known fact that you can use the Time-based One-Time Password (TOTP) algorithm to secure your user accounts in Linux systems. 

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The Path to Full-Time Open Source

Mike Perham: Two years ago today I released Sidekiq Pro, my commercial extension to Sidekiq, as an experiment to see if I could make OSS development financially viable for individual developers.

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