ssh使用默认及非默认22端口密钥登陆

1、远程服务器默认ssh端口为22服务器 生成公钥，路径保持默认便可：dom [root@xuegod2 .ssh]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa):  /root/.ssh/id_rsa already exist

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