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SSHの公開鍵認証

Last updated at 2018-02-18Posted at 2015-09-07

###参考サイト

##秘密鍵と公開鍵を作成

	ssh-keygen -t rsa -b 4096 -C "sample@sample.com"

##公開鍵を転送

	scp -P 22 id_rsa.pub user@hostname/.ssh

##公開鍵を設定

	mv ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys
	chmod 600 ~/.ssh/authorized_keys

権限設定が必要

chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
chmod 400 ~/.ssh/id_rsa

##SSHで公開鍵認証を設定

	sudo vim /etc/ssh/sshd_config

#####/etc/ssh/sshd_config

	PubkeyAuthentication yes

##sshdを再起動

	sudo service sshd restart

##公開鍵でSSH接続する

	ssh -i ~/.ssh/id_rsa user@hostname

~/.ssh/id_rsa であれば省略可能