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How to set up an SSH key for secure connections

The Secure Shell Protocol (SSH) is perhaps the most well-known means of establishing a secure connection between a client computer (your laptop, phone or desktop) and a remote server in an office, data center or on your home network. You will probably use SSH if you want to access the command line of your web hosting service or a headless Raspberry Pi. SSH is available in some form for almost every operating system and is often built into the operating system.

Most servers give you the choice to connect to SSH using a password or using SSH keys, which are more secure. The SSH key method uses cryptographically generated public and private keys to establish an encrypted connection between devices.

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