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SSH密钥是否远程缓存?
我想在远程服务器上安装新的公共密钥。我在ssh-keygen -t rsaMacbook上使用创建了一个密钥对,然后将其公钥添加到authorized_keys了远程服务器上。它是该文件中剩下的唯一公共密钥: user@remote:~/.ssh$ cat authorized_keys AAAAB3NzaC1yc2EAAAADAQABAAABAQCwNctIMgFSrvxrB/fX0eN2ew/nSHZWvY7gT3/wuZ3IpnumYtOA62Telc8M9tLu3bLsuh3O+/duhKTkW58jyEp2W8cC8hy+bWdZRvaV1jdBKtOyKb+KMFELWdxFFHd6PdMz+D9ElmDQlDqe2/Kw7SCjDiLnnuJbjoB+DycbPnlEMsecZAK73anlwfzs5iV6pzdqJw1u8+n4w6cpqgZJ6nyAIWhxxN3Ii0/H3Fbe5XiYezJJi4jtAmtLPd6JxoX17pNqtEl8dlI7rp4exq+HfVDVzKjRRA5fdyUmuWYrscBPrI/5Djvr+vJS3OizzZNdtXeuXbqT+89exjaswR2XEU/p 在本地,当我保留旧密钥时,这是我的新公钥: local:.ssh user$ cat id_rsa.pub ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwNctIMgFSrvxrB/fX0eN2ew/nSHZWvY7gT3/wuZ3IpnumYtOA62Telc8M9tLu3bLsuh3O+/duhKTkW58jyEp2W8cC8hy+bWdZRvaV1jdBKtOyKb+KMFELWdxFFHd6PdMz+D9ElmDQlDqe2/Kw7SCjDiLnnuJbjoB+DycbPnlEMsecZAK73anlwfzs5iV6pzdqJw1u8+n4w6cpqgZJ6nyAIWhxxN3Ii0/H3Fbe5XiYezJJi4jtAmtLPd6JxoX17pNqtEl8dlI7rp4exq+HfVDVzKjRRA5fdyUmuWYrscBPrI/5Djvr+vJS3OizzZNdtXeuXbqT+89exjaswR2XEU/p 如您所见,这是添加到authorized_keys远程服务器上的密钥。为此,这是我旧的公共密钥的内容,只是为了表明它们是完全不同的: local:.ssh user$ cat id_rsa_alt.pub ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDJMTXjgk8KMUQpiOnx9R5gTDQhFUQbUPZCvrCbQXIIRP4I7MfhqDEWUqnsobOxeYXXtyV0s116iFwvc/4DaWCWQEcuvIcRiRekQRgqELJJfbSdXR70OyBQWn1SpVKbD93Ww2KE+KomrYl0Ocl92GGw39tr2Eyl0qNM/5MBiZk4Nm8cEM/NhROesj8Uj2dNDh9AheC9eGSFdCkS7l+F2+dpZc2aIGgbkQtortIE41hu3yZl/EnQlXIQU2OiOxdm9jROm6ndh5OQn8/e5JH8CyExjRnSCH+/XlqfSVujaXjPaM5rBNQlzIxdjjrFkg4MxE4g/QFF9g60e37ed43QSAcH 我当然可以使用新密钥进行连接,但是我的旧密钥仍然有效: local:~ user$ ssh -i .ssh/id_rsa_alt user@remote Linux lxhalle 2.6.32-52-server #114-Ubuntu SMP Wed Sep 11 19:06:34 UTC 2013 x86_64 GNU/Linux Ubuntu 10.04.4 LTS Welcome to the Ubuntu Server! * …