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mauricios/generate_ssh_key_pair.md

Last active November 17, 2020 15:47
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Generate SSH key pair
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generate_ssh_key_pair.md

Generate SSH key pair

Use RSA encryption with 4096 bits

ssh-keygen -t rsa -b 4096 -C "my_email@mydomain.com" -f ~/.ssh/myserver.key -P ""

The command above will generate two files, the private key ~/.ssh/myserver.key and the public key ~/.ssh/myserver.key.pub.

Now you can use th SSH key pair to access machines via SSH

Configure SSH config

To connect via SSH without a password using a simplified command you can use the following instrucctions:

Edit the file ~/.ssh/config and add the following:

Host myserver.com
    HostName myserver.com
    User myuser
    IdentityFile ~/.ssh/myserver.key

Now you can use any SSH connection command passwordless:

ssh myserver.com

You can also configre the remote Git server in your local repo using the SSH configuration, e.g. git@myserver.com

Next steps

  • Upload the public key to the machine in the ~/.ssh/authorized_keys file or upload to the Git service
  • Keep you private key secure in your local machine.
  • Use you private key to connect to the server
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