[Windows/Mac/Linux] Password-less SSH Access and Hints

To access SSH without entering password every time.
You can generate a public/private key pair, and authorize the public key on remote server.
Essential if your need to run automated scripts.
Works on Linux / Mac / Windows (Under bash)
(For Windows + PuTTY, check the tutorial here)

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Apache HTTPS Certificate Purchase and Installation

HTTPS Certificate Purchased from SSLs.com (Should work on other Cert Providers)
Installation on Ubuntu 14.04 / 16.04 + Apache 2.4
With Apache settings to harden SSL settings for better security.

Too lazy to research and type every time so put it here for my own copy-and-paste.

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