GabLeRoux/how-to-add-ssh-key-to-remote-host.md

Last active September 5, 2018 18:49

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Generate a new ssh key and add it to remote server's authorized_keys

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how-to-add-ssh-key-to-remote-host.md

1. Generate yourself a new ssh key

# Generate new ssh key (from github)
# https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/
ssh-keygen -t rsa -b 4096 -C "[email protected]"
eval "$(ssh-agent -s)"
ssh-add ~/.ssh/EXAMPLE_rsa

2. Add your public key to the remote server

ssh-copy-id -i ~/.ssh/EXAMPLE_rsa -o PreferredAuthentications=password -o PubkeyAuthentication=no [email protected]

3. Add an entry to your `~/.ssh/config`

Host example-alias example.com
Hostname example.com
User user
IdentityFile ~/.ssh/EXAMPLE_rsa
IdentitiesOnly yes

Note: you can use these instead of IdentitiesOnly yes for your first connection

PreferredAuthentications=password
PubkeyAuthentication=no

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