[メモ] ssh-copy-id で公開鍵を設定

キーペア作成（コメントに空文字指定）

ssh-keygen -C ""

ssh-copy-id で公開鍵を渡す

# id_rsa.pub
ssh-copy-id ${USER}@${target_host} -p ${port}
# キーを指定
ssh-copy-id -i ${identity_file} ${USER}@${target_host} -p ${port}

windows(powerShell) の場合

# windows(PowerShell)
cat ~/.ssh/id_rsa.pub | ssh ${user}@${host} "mkdir -p ~/.ssh && chmod 700 ~/.ssh && cat >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys"

~/.ssh/configのサンプル

Host xxxx
    HostName {hostname}
    User {username}
    IdentityFile ~/.ssh/id_rsa
    Port {port_no}
    TCPKeepAlive yes
    IdentitiesOnly yes
    ServerAliveInterval	60