在企业环境中，把sudo命令提交给远程主机最好是作为root用户使用ssh脚本来完成，对于无密码登录，还应该在主机之间交换密钥。
Rolling out sudo commands to remote hosts in an enterprise environment is best done using a SSH script as root, and the keys should have been exchanged between the hosts, for password-less logins.
数字密钥可以让客户通过输入独一无二的密码来登录，这种密码几秒钟就失效。
These devices enable customers logging into their accounts to enter unique pass codes that change every few seconds.
为私有密钥使用一个强大的口令和密码保护来创建公私密钥对(绝不要生成一个无密码的密钥对或一个无密码口令无密钥的登录)。
Create private-public key pairs using a strong passphrase and password protection for the private key (never generate a password-less key pair or a password-less passphrase key-less login).
为私有密钥使用一个强大的口令和密码保护来创建公私密钥对(绝不要生成一个无密码的密钥对或一个无密码口令无密钥的登录)。
Create private-public key pairs using a strong passphrase and password protection for the private key (never generate a password-less key pair or a password-less passphrase key-less login).
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