[root@localhost ~]# ssh-keygen -t rsa <== 建立密钥对,-t代表类型,有RSA和DSA两种 Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): <==密钥文件默认存放位置,按Enter即可 Created directory '/root/.ssh'. Enter passphrase (empty for no passphrase): <== 输入密钥锁码,或直接按 Enter 留空 Enter same passphrase again: <== 再输入一遍密钥锁码 Your identification has been saved in /root/.ssh/id_rsa. <== 生成的私钥 Your public key has been saved in /root/.ssh/id_rsa.pub. <== 生成的公钥 The key fingerprint is: SHA256:K1qy928tkk1FUuzQtlZK+poeS67vIgPvHw9lQ+KNuZ4 [email protected] The key's randomart image is: +---[RSA 2048]----+ | +. | | o * . | | . .O + | | . *. * | | S =+ | | . =... | | .oo =+o+ | | ==o+B*o. | | oo.=EXO. | +----[SHA256]-----+