使用以下命令
[root@vps ~]# ssh-keygen [root@vps ~]# ssh-copy-id user@192.168.9.111
如果不是使用ssh-copy-id 命令把本机的公钥id_rsa.pub添加了远程主机认证列表 authorized_keys中
可以使用免确认机器指纹参数免除第一次的yes确认直接登入，免除了“yes”确认
ssh -o StrictHostKeyChecking=no [email protected]
[root@vps ~]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Created directory '/root/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: SHA256:4iGGv/oqZhBk2wYs1+VIQBzeYNOh7zsfCUPa1N7d0EY root@vps The key's randomart image is: +---[RSA 2048]----+ |.oB=oo. E | |.Bo*o+ o | |+.* = o . o | |.. X . . . + | | .+ B + S . . | |. + = + | |. o + | |.o .o . | |o.o++o. | +----[SHA256]-----+ [root@vps ~]# [root@vps ~]# ssh-copy-id [email protected] /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub" The authenticity of host '192.168.9.243 (192.168.9.243)' can't be established. ECDSA key fingerprint is SHA256:eIe1dqiRPK325D/NXRvXDDNllNGNGXlreNh/o8jNXAY. ECDSA key fingerprint is MD5:6c:c9:4f:da:6d:fd:3f:3c:8e:a8:69:f5:59:67:16:15. Are you sure you want to continue connecting (yes/no)? yes /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys [email protected]'s password: Number of key(s) added: 1 Now try logging into the machine, with: "ssh '[email protected]'" and check to make sure that only the key(s) you wanted were added. [root@vps ~]#