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Last active February 15, 2019 16:57
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enable ssh-agent transparently and pervasively in Mac OS X Lion/Mountain Lion
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README.md

This is a quick configuration upgrade that allows you to continue using ssh as you have, but with the added benefit of ssh-agent forwarding when logged into remote hosts, meaning no more keys on intermediate servers and the like.

Requirements

This snippet assumes that you've been using ssh, ssh keys, and authorized_keys on remote hosts.

  • .ssh/id_dsa and/or .ssh/id_rsa already exist
  • keys are authorized on the remote servers you have been using
  • you have at least a minimal working .ssh/config file
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commands.sh
# persistently add default keys to Keychain
ssh-add -K
# prepend ForwardAgent to existing ssh_config, meaning `ssh -A` is the effective default
echo "ForwardAgent yes" | cat - ~/.ssh/config > /tmp/out && mv /tmp/out ~/.ssh/config
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